Indoor Cycling

CycleOps’ JetFluid Pro Trainer is your secret weapon. Use it whenever time or weather constraints arise so you can stamp your authority on the hills, races or group rides next time the sun shines. The Pro features progressive resistance, where just like the real world, resistance builds the faster the wheel spins. Charging through 600-watt intervals or spinning easily in the little ring requires no adjustment; the power curve automatically changes to give you a silky-smooth workout. Plus, the Fluid is whisper quiet and the frame is tough, sturdy and stable so you can ride as hard as you want.

Kurt Kinetic’s Road Machine 2.0 Fluid Trainer features a fluid-based unit for smooth, progressive resistance that matches your effort for a true outdoor simulation. With a 6.25 lb. flywheel and a sealed fluid chamber pushing back, you get a natural resistance feel and a lower operating temperature for consistency to 3000 watts and beyond. When it's time to store or transport the unit, simply fold up the legs and tuck it away. And, thanks to the 2 1/8-inch roller, tire wear is reduced significantly.

No matter your training category, the H2 is the perfect addition to any athlete’s toolbox. From weekend warriors to pro-podium chasers, mountain bikers to triathletes, this smart direct drive trainer is versatile enough to push any training regimen to the edge. The heart of the H2 is its ability to replicate real world inertia better than anyone else thanks to it its massive, 20-pound precision-balanced flywheel. The H2’s soul is its impressive electrical prowess, complete with integrated cadence, speed and power data, internal cooling, over-the-air firmware updates, dual-band ANT+ and Bluetooth compatibility and topped off with its electromagnetic resistance system for rapid resistance changes within virtual training environments. Plus, at 64 decibels the H2 is library-level quiet - even if your next virtual victory may not be. - Noise level at 20 mph is 64 decibels, quiet enough to ride in a library. - PowerTuned using PowerTap technology for up to +/- 2% accurate power readings. - Thru-axle compatible for bike frames with fork widths of 142 or 148. - Quick-release compatible for bike frames with fork widths of 130mm and 135 mm. - Integrated dual ANT+ FE-C and Bluetooth standards. - Compatible with a wide variety of devices and virtual training application, including Rouvy, Zwift, TrainerRoad and many more. - - - - - Contact us with questions about compatibility with other software. - 20 lb precision balanced flywheel provides quiet, vibration free and true-to-the-road riding experience. - Fast response electromagnetic resistance ensures most responsive resistance and maximum power available. - Robust design is capable of handling up to 2000 watts at 20 mph and can simulate up to a 20% climbing grade. - Headless mode (powered on, not paired to any apps) lets you ride with a progressive resistance curve that matches the Fluid2. - Internally integrated speed, cadence and power data eliminates the need for extra external sensors. - LED indicator lights communicate connectivity and more. - Direct drive design directly connects the bicycle to the resistance unit, eliminating tire wear. - Integrated front wheel tray adds stability to ride without taking up any extra storage space. - Internal cooling technology ensures accurate ride data even during the hardest of workouts. - Built-in front wheel tray adds stability to ride and nests within the trainer when not in use. - Folding legs provide widest footprint of direct drive indoor bicycle trainers on the market for added stability and easy storage. - Includes a Shimano splined freehub for compatibility with Shimano 8-11 speed cassettes. XD freehubs are also available and sold separately. - Accessible and balanced handle allows for smooth, anyone-can-carry transit of the trainer. - Over the air (OTA) firmware updates via Bluetooth ensures the H2 is up to date with all the latest features. - All of our trainers are tested to the combined weight (rider and bike) of 300 lbs. - Dimensions when Open L*H*W: 31” x 18.5” x 19.5” (787.4 x 469.9 x 495.3 mm). - Dimensions when Closed L*H*W: 8.5” x 18.5” x 19.5” (76.2 x 469.9 x 495.3 mm). - Weighs in at 47 lb. (21.3 kg). - ANT+ and BlueGiga USB dongles sold separately. - Cassette not included. - Zwift certified.

CycleOps’ SuperMagneto Pro Training Kit offers smooth road-feel and four magnetic settings for dialing in the exact real-world simulation your workout calls for. The easy setting is ideal for warm ups and easy days, the road mode is tailored for high-volume rides, you can throw down hard with the interval setting and the mountain mode lets you crank out intense hill workouts even when the weather outside is nasty. Each setting has progressive resistance, where just like riding outside, resistance builds the faster the wheel spins. The frame is tough, sturdy and stable so you can ride as hard as you want. Two Climbing Riser Blocks are stackable to simulate steep grades, a RaceDay training DVD keeps you motivated, and a Training Mat and Sweat Guard protect your equipment and floor.

Leveling block for indoor trainers

Reliable. Durable. Quieter Than Ever Before. When it comes to indoor bike trainers, the most frequently asked question is: how quiet is it? Taking this to heart, our Madison, Wisconsin-based team put this query under the microscope and set a goal to build a trainer so quiet, that the only sound is that of your drive train. The result? A direct drive smart trainer that touts a sound specification of 59 decibels at 20 mph. In other words, the H3 is five times quieter than previous generations, making it the quietest smart trainer to ever leave our doors. Following the Saris direct drive smart trainer legacy, the H3 features the same reliably and durability as its predecessors. Each H3 is made from cast and machined aluminum sourced from America’s heartland. Encased inside are components meticulously calibrated to measure power, speed and cadence, as well as a precision-balanced flywheel - all built to handle 2000 watts and replicate a 20% climbing grade. Tested to withstand heavy training, the H3’s internal cooling system will keep the electromagnetic resistance system working – and accurate – long after your legs have given out. - Quieter Than Ever: all new drive system shaves decibels off previous generations. - Precise Training: +/- 2% power accuracy. - Controlled and Consistent: electromagnetic resistance provides a measured workout every time. - Direct Drive Design: widest bike compatibility and eliminates wheel slips. - No External Sensors Required: measures speed, cadence and power. - Seamless Integration: connects to indoor cycling apps with dual ANT+ FE-C and Bluetooth FTMS standards. - Zwift certified. Specs - Noise level: 59 decibels at 20 mph - Power measurement accuracy: +/- 2% - Maximum power output: 2000 watts at 20 mph - Simulates a 20% climbing grade - Fast response electromagnetic resistance - Measures speed, cadence and power – no external sensors needed - 20 lb precision balanced flywheel - Integrated dual ANT+ FE-C and Bluetooth FTMS standards - Built-in front wheel block - Integrated carrying handle - Compatible with Shimano 8-11 speed cassettes - XD/XDR freehubs sold separately (link) - Thru-axle compatible for bike frames with fork widths of 142 or 148. - Quick-release compatible for bike frames with fork widths of 130mm and 135 mm. - Compatible with a wide variety of devices and indoor cycling applications, including Rouvy, Zwift, TrainerRoad and many more. Contact us with questions about compatibility with other software. - Headless mode (powered on, not paired to any apps) lets you ride with a progressive resistance curve that matches the Fluid2 (link). - LED indicator lights communicate connectivity and more. - Direct drive design directly connects the bicycle to the resistance unit, eliminating tire wear. - Internal cooling technology ensures accurate ride data even during the hardest of workouts. - Folding legs provide widest footprint of direct drive indoor bicycle trainers on the market for added stability and easy storage. - Accessible and balanced handle allows for smooth, anyone-can-carry transit of the trainer. - Over the air (OTA) firmware updates and calibration via the Saris app (link to firmware page) - Maximum weight (rider and bike): 300 lbs. - Dimensions when Open L*H*W: 31x18.5x19.5 inches (787.4x469.9x495.3 mm). - Dimensions when Closed L*H*W: 8.5x18.5x19.5 inches (76.2x469.9x495.3 mm). - Weight: 47 lb. (21.3 kg). - Cassette sold separately.

No fancy gizmos. No wires. No fuss. If you’re looking for an easy way to ride your bicycle indoors, call off the search – you’ve found it. Whether your training for a local charity ride or working to beat your friend’s FitBit score, the Mag indoor bike trainer can help you make it happen. Simply connect the trainer to the rear wheel of your bike, hop on, and pedal away. Plus, the Mag comes with five adjustable levels of resistance so you can adapt every ride to your liking. - Magnetic resistance unit provides a quiet and frictionless ride. - Linear resistance boosts workout intensity to match each pedal stroke and gear click. - Features five adjustable levels of resistance - Compatible with Zwift and other indoor training apps

Experience the exhilarating and breathtaking ride-quality of the great indoors. CycleOps’ PowerBeam Pro Trainer transports you to rowdy city streets, desolate forested mountains, Swiss Alp Tour stages and palm-lined beaches in the dead of winter. The smooth, supple road-feel, out-of-the-saddle stability, ANT+ compatibility, VirtualTraining and power measurement with +/-5% accuracy give you the ultimate tools to get the most benefit and enjoyment out of trainer workouts. Closed loop resistance allows you to choose a power output or slope and drill it for as long as the segment demands. With VirtualTraining you have the globe at your disposal to create and ride pre-existing, exciting routes and race against others; the possibilities are almost endless.

No matter how busy you are, hop on Sunlite's F-5 Training Cycle and get a workout regardless of the weather outside. The fully adjustable design means you get a perfect seating position so you can perform at your peak, and the heavy-duty frame keeps flex to a minimum for awesome power transfer. Adjustable resistance allows you to tailor your workout, too, and the side-braking resistance design translates into longer bearing life. You can even track your time, speed, distance, calories, and total distance on the built-in computer. And when it's time to tuck the F-5 away, oversize wheels help you roll it across hardwood floors and even carpet.

The iconic, progressive, and popular NEO 2 Smart is optimized with an even quieter and more powerful Smart direct drive. The motor is redesigned in order to provide a better indoor cycling experience and ride feel, especially during climbs and sprints. The NEO 2T Smart is more silent then ever thought possible and is, without question, the most powerful, realistic, and accurate bike trainer to date. - Improved air and mechanical stillness results in a nearly silent smart bike trainer with power and cadence accuracy within 1% - New motor design creates enhanced ride feel during climbs and acceleration and when riding at low speed or cadence - Now enables accurate pedal stroke analysis via compatible third-party software and Edge bike computers - Dynamic inertia compensates for weight and other factors to ensure a realistic and smooth ride - Road feel feature lets you experience the sensation of different road surfaces, such as cobblestone and gravel FEATURES Type of trainer: Interactive Smart direct-drive with motor brake Magnets: 32 Neodymium magnets Transmission: None Electrical requirements: 110-240 Volt , Main power optional Power indicator: Multicolor LED, Spot on floor Connection indicator (ANT/BT): 2 LEDs Firmware upgradable: Yes Suitable cassettes: Shimano & SRAM: 8 – 12 speed, Campagnolo. Not suitable for Specialized SCS system, SRAM XD and XD-R body sold separately Suitable axles: Road 130mm, MTB 135mm, 142mm & 148mm thru-axles. Adapter for 135 x 10mm available Supplied with: Front wheel support, Quick release for road bikes and mountain bikes (5mm), Direct drive quick release with adapter set for 142x12mm & 148x12mm thru-axles, 1 month Tacx Premium software SPECIFICATIONS Max. power (40 km/h): 2200 Watt Max. incline: 25% Simulation of descent: Yes Max. torque: 85 Nm Max. brake force: 250 N Flywheel: Virtual Mass inertia: Variable to 125kg (275.6lbs) Calibration: No calibration required Footprint (lxw): 575 × 750mm (22.6 × 29.5 in) Height: 550mm (21.7 in) Dimensions when folded: 620 × 260 × 440mm (24.4 × 10.2 × 17.3 in) Weight: 21.5 kg (47.3 lbs) Article number: T2875 DATA OUTPUT AND CONTROL Wireless communication: ANT+ FE-C, Bluetooth Smart open Control by: ANT+FE-C bike computers, Connect to computer via ANT+antenna, Smartphone, Stand alone, Tablet Output: Cadence, Power, Speed Read out on: Bike computer, Computer with ANT+ antenna, Smartphone, Sports watch, Tablet Error Tolerance: <1%

The Kickr Power Trainer from Wahoo Fitness takes your indoor trainer workouts (and race-day outdoor warm-ups and downs) to an entirely new level. Its first trick is not relying on your rear wheel, which means no more tire and cassette wear - and never having to worry about flatting while warming up! This ingenious design makes for a smaller, more portable trainer, too, plus the Kickr folds for even easier transport/storage, and it even has a sturdy built-in carrying handle. Unfolded and in use, the Kickr is extremely stable thanks to heavy-duty construction, long legs and leveling feet. Riding feels super-smooth and just like cycling outdoors thanks to a heavy flywheel and carbon belt drive. Plus, you get accurate power measurement, controlled resistance and open third-party software options. The Wahoo Kickr Power Trainer is the world's first iPhone powered bike trainer, and it works out of the box with several software solutions, too. Your indoor cycling experience will never be the same!

The latest innovation from Wahoo will literally take your indoor training to the next level! KICKR CLIMB indoor grade simulator is designed to work exclusively with the Wahoo KICKR Smart Trainers and when paired, it will add physical grade changes to your indoor training. The KICKR CLIMB is compatible with Third Party Apps, so whether riding a virtual course or performing a structured workout, KICKR CLIMB blends ascents and descents with resistance changes for a truly immersive indoor training experience. The world isn’t flat; now, neither is your ride! Features - Real-time grade changes - App controlled - 20% maximum incline - -10% maximum decline - KICKR smart trainer compatible - KICKR desk compatible - Wahoo ELEMNT bike computer compatible - Direct proximity pairing - Locked and unlocked climbing modes - Manual grade adjustments with remote control - Quick release and thru-axle bike compatibility - LED indicator lights - Professional grade durability - Third party app compatibility

CycleOps' Fluid2 Trainer utilizes Power Band technology to allow for distinct resistance changes without reaching to a lever on the unit. The large flywheel with fluid resistance delivers a smooth, realistic road feel while sturdy legs provide a stable platform for pumping out hard, 600-watt efforts and out-of-the-saddle climbs. A favorite among serious racers, the Fluid2 is easily transportable and stands up to repeated punishment by the burliest of legs for years of impressive performance.

CycleOps' Wind Trainer provides all the cardiovascular exercise you can handle. Heavy die-cast zinc fan blades double as a flywheel for smooth, progressive resistance. The faster you pedal, the harder your workout... just like riding your bike on the open road.

Feel the smooth precision of the lathe-turned-aluminum drums on CycleOps’ Aluminum Rollers. The durable steel frame stands up to years of hard training, indoors or out. Plus, the folding design allows convenient storage and transport. The rollers feature an adjustable belt for right and left dismounting, an easily adjusted wheelbase and a limited lifetime warranty.

A standard issue CycleOps Fluid2 trainer, made for Trek, helps keep the wheels spinning even when the weather outside says rest. Key features: - Infinite resistance curve ensures increased wattage as you increase speed - Patented design delivers an ultra-quiet ride and the most road-like feel - Self-cooling flywheel/fan increases the life of the resistance unit

Turn your basement into a hellish winter sweat cavern as you dream of summer climbs and fitting back into your spandex. With a little help from the Kurt Kinetic Road Machine | Smart Trainer, you'll be creating puddles beneath your stallion and engaging in endless suffering of your own free will. With on-board power training, the Road Machine Smart App links up with Siri (or the faceless automaton Android AI) to make sure you ain't kidding yourself with those intervals you're "throwing down." When you're screaming, "There's no more?!" at your television after binge-riding through all four seasons of Battlestar Galactica, the Road Machine | Smart Trainer will even hold your interest with tailored workouts. So, let's not hear anymore of that "It's too cold to ride" business. The Road Machine | Smart Trainer will have none of it! - Stable, durable trainer frame - Unconditional lifetime warrantly - Frame fits 22-inch to 29-inch wheels - Large diameter roller - Pairs with devices using Bluetooth Smart - Ergonomic rubberized knobs and feet - Progressive fluid resistance - Fully assembled - Folds flat for easy storage

In the Tech Mag 1, Blackburn delivers a high quality trainer that lives up to the production and quality standards of the brand, yet is simple, easy to use and affordable. - Single resistance setting for no-fuss operation - Compact, lightweight and foldable design - Rubber feet micro-adjust for extra stability - Includes steel quick release wheel skewer so that your original equipment does not get scratched - No assembly required - Bike installation is simple and works with many wheels sizes from 26 x 1" to 29 x 2.3" - 6713g / 14.80lb Dimensions: -Length 550/550mm/21.7/21.7in -Width 550/480mm/21.7/18.9 -Height 415/160mm/16.3/6.3in

Wahoo's ANT+ Key transforms your iPhone into an all-in-one training partner for running, riding, and going to the gym. Wirelessly connects your iPhone to fitness sensors and allows you to collect and track all your fitness data like heart rate, speed, and cadence through your favorite fitness apps. • Connects your iPhone to ANT+ fitness sensors: heart rate, cycling speed/cadence, and power meters (each sold separately) • Low-energy and does not require charging • Weight: 3.5 grams

The KICKR CORE is the latest in Wahoo's line of smart indoor bike trainers. It delivers a realistic, accurate, and quiet indoor training experience by using the proven flywheel technology and advanced algorithms of Wahoo's legendary indoor bike trainers. The KICKR CORE indoor trainer is built with the durabilty to withstand all of your indoor training sessions and no other brand of smart trainers has more apps and software training options, including Zwift and Trainer Road. The Core also features built-in cadence measurement, without the need of an external sensor. PLEASE NOTE: Some assembly is required. The KICKR CORE does not include a cassette or wheel block. These items can be purchased separately. - Wahoo's KICKR CLIMB indoor grade simulator was designed in conjunction with the KICKR smart trainers to deliver an unmatched indoor training experience when combined. - KICKR HEADWIND was designed to deliver innovative climate control to your indoor training experience. - The new KICKR features 12x142 and 12x148 thru axle compatibility in addition to standard 130/135mm quick release. Click to find out if your bike is compatible. - Enhanced power accuracy to provide accurate power measurement and generate up to 1800W. - Maximum percent grade adjusts to simulate up to a 16-degree incline. - Visual confirmation that KICKR CORE is powered, connected and transmitting via Bluetooth and/or ANT+. - ANT+ and Bluetooth capabilities allow it to connect to both smartphones and GPS devices simultaneously or separately. An ANT+ FE-C connection allows the KICKR CORE to be controlled from any FE-C enabled device or application. - Robust steel construction ensures the KICKR CORE stays in place while you crank out the watts and stands up to years of heavy use. - When connected to your device, it automatically sets your resistance via your favorite app or software. - The KICKR flywheel is innovative and proven technology emulates the power and inertia experienced during outdoor riding. It provides the most realistic ride feel especially when using virtual riding/training platforms like Zwift and TrainerRoad. - Get these vital cycling metrics on your indoor ride. - Works with popular training apps such as Zwift, The Sufferfest, Fulgaz and TrainerRoad. - Compatible with a third party power meter.

Whether you want to attend a group ride in Zwift, climb the Dolomites in Rouvy or simply need a sweat session, the M2 smart trainer can get you there. All you need is your bike, the M2, your favorite virtual training software, and device of choice. This do-it-all, smart bike trainer is capable of replicating any workout thrown its way, up to 1500 watts and a 15% climbing grade. Simply connect to your virtual training application of choice via integrated dual-band ANT+ FE-C and Bluetooth, and let the M2’s electromagnetic response system do the rest. And thanks to integrated speed, cadence and power data, you can track and record performance data without extra external sensors. Plus, our innovative clutch knob ensures perfect tire-to roller connection for every single ride. - Noise level is a quiet 69 decibels at 20 mph. - PowerTuned using PowerTap technology for accurate power readings up to +/- 5%. - This trainer is designed to fit common road and mountain bike frames with included steel quick release skewer and has three settings for rear dropout spacing: 120mm, 130mm and 135mm. Optional thru-axle adapter available for 142x12mm and 148x12mm. - Integrated dual ANT+ FE-C and Bluetooth standards. - Fast response electromagnetic resistance ensures most responsive resistance and maximum power available. - Robust design is capable of handling up to 1500 watts at 20 mph and can simulate up to a 15% climbing grade. - Headless mode (powered on, not paired to any apps) lets you ride with a progressive resistance curve that matches the Fluid2. - Internally integrated speed, cadence and power data eliminates the need for extra external sensors. - LED indicator lights communicate connectivity and more. - Internal cooling system moves air through the trainer to keep it cool while active thermal sensors ensure accurate performance data even during the hardest of workouts. - Comes on the CycleOps foldable Classic frame with spring loaded, bolt-action lever. - Features clutch knob for perfect roller to tire tension each ride. - 2" resistance unit roller allows for 650b, 700c, 26", 27", and 29" - up to a 2.0 tire. - Does not fit 650c wheel sizes, nor all 29er tires. - Precision-machined alloy roller reduces tire wear and slippage. - Eccentric leveling feet allow for easy adjustment on uneven surfaces. - Trainer tire recommended. - Compatible with a wide variety of devices and virtual training applications, including Rouvy, Zwift, TrainerRoad and many more. Contact us with questions about compatibility with other software. - Over the air (OTA) firmware updates via Bluetooth devices ensures the M2 is up to date. - Some assembly required. - All of our trainers are tested to the combined weight (rider and bike) of 300 lbs. - ANT+ and BlueGiga USB dongles sold separately. - Not compatible with CycleOps 20/24" wheel adapter. - Optional thru-axle adapter available for 142x12mm and 148x12mm bikes.

Protect your fine Kurt Kinetic trainer and make it easy to transport with their Trainer Bag. This sturdy nylon bag is large enough to hold your Kurt trainer and Riser Ring, and it's easy to carry thanks to the strong handle and removable shoulder strap. The Trainer Bag zips closed and has a handy zip front pocket, too. Kurt Trainers and Riser Rings are sold separately.

Kinetic's Trainer Mat is a simple necessity for any cyclist who cherishes a clean training environment. It keeps floors clean and sweat-free and reduces vibration. Durable closed-cell PVC foam means it will stand up to even the most intense training sessions.

Get the natural feel of riding outside when you use Kurt Kinetic's Turntable Riser Ring in conjunction with Kurt Kinetic's Rock and Roll trainer (sold separately). The Turntable Riser Ring elevates your front wheel so you get a more natural riding position, and thanks to the swiveling base, you can use your most natural pedal stroke.

Bkool Smart Bike is a fully adjustable smart indoor bike that, when paired with the Bkool Simulator, creates an unparalleled indoor cycling experience. Bkool has teamed up with some of the best indoor cycling instructors in the world to create video classes that will help you reach your goals from the comfort of your home. No more knobs to turn or levers to pull, the Bkool Smart Bike automatically adjusts resistance based on the intensity level of the class or according to the terrain of a ride. And it is compatible with your smart phone, tablet, computer, or even a smart TV! It measures real time speed, cadence, and power up to 1,500 watts, and also simulates slopes up to 20%. The Bkool Smart Bike includes a 1 year premium Bkool Simulator subscription.

JFK once said, “Nothing compares to the pleasure of riding a bike.” Here at Saris, we couldn’t agree more. That’s why we’re committed to helping bicyclists of all types get on their bikes and ride. The Fluid bike trainer can help you do just that, no matter the season, schedule or time of day. Its fluid progressive resistance matches your effort without hardly making a sound, no adjustments needed. Plus, the Fluid comes with a durable, foldable, and easy-to-store trainer frame. - Fluid resistance unit provides a quiet and consistent ride. - Progressive resistance offers the widest resistance range and road-like feel. - Comes on an easy-to-store, foldable bike trainer frame - Compatible with Zwift and other indoor training apps

With Blackburn's Mag 5 Trainer, you can mix up your workout with five resistance settings that you select on the fly with a handlebar-mounted remote. - Five position handlebar remote that is simple to attach and easy to use - Fastcrank mounting system allows for simple and quick installation - Compact, lightweight, and foldable design - Rubber feet micro-adjust for extra stability - Includes steel quick release wheel skewer so that your original equipment does not get scratched - No assembly required - Bike installation is simple and works with many wheels sizes from 26 x 1" to 29 x 2.3" - Five resistance settings across a broad range of levels Dimensions: - Length 550/550mm/21.7in - Width 550/480mm/21.7/18.9in - Height 415/160mm/16.3/6.3in - Weight 8210 g / 18.10 lb

The Mag Riser Block 3 from Minoura lifts up your front wheel during a training session to be at a natural level. This block fits both MTB and Road bike tire widths. - Fits under front wheel to level the bike to get natural riding on training - Double grooved design fits your narrow or wide ties - Polyethylene material minimizes weight at 1/2 lb. - 8.6D X 4.7W X 2.75H (inches)

The LR240 Indoor Bicycle Trainer features an advanced magturbo for a powerful and quiet experience. Can be used with 18-20 inch tires. - Single neodymium magnet with a quiet and smooth feel - Generates 433 watts of power at 25 mph - 7 resistance levels with a 35% wider resistance range than standard Mag Series - Quick release remote shifter; allows for high-speed/low resistance training - 24W X 12H X 11D (inches)

The RDA-2429 is the world only one rim drive unit and is on a lightweight but stable frame. Comes with a remote for easy adjustment. - World exclusive rim drive system for 24-29" bicycles - Mount up to a 29 x 2.55" tire - Special surface shape works with most disc brake rims - 7 adjustable resistance levels - H-shape durable steel framef