Indoor Cycling

Looking for a smart, direct-drive trainer? The FLUX S Smart checks all the boxes: it’s reliable, accurate, silent, strong, and features a heavy flywheel for a very realistic ride feel. Made to help you sweat while cycling with your favorite apps, this bike trainer is the ideal indoor training companion. - Measure your power within 3% error tolerance - Next-to-silent direct drive trainer lets you ride without disturbing others - Works with popular third-party training apps such as Zwift and Tacx - Train with realistically simulated inclines up to a 10% gradient and a max sprint resistance of 1,500 watts - Sturdy design easily allows for riding full-out and standing on the pedals FEATURES Type of trainer: Interactive Smart direct drive with electric brake Magnets: 8 Permanent ferrite magnets & 8 electromagnets Transmission: None Electrical requirements: 110-240 Volt Power indicator: None Connection indicator (ANT/BT): 2 LEDs Firmware upgradable: Yes Suitable cassettes: Shimano & SRAM: 8 - 11 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. Suitable bikes: Race, Tri, & MTB Supplied with: 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): 1500 Watt Max. incline: 10% Simulation of descent: No Max. torque: 22.1 Nm Max. brake force: 65 N Flywheel: 7kg Mass inertia: 22.8kg (50.3 lbs) Calibration: Spin down Footprint (lxw): 670 x 642 mm (26.4 x 25.3 in) Height: 460mm (18.1 in) Weight: 22.8kg (50.3lbs) Article number: T2900S 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, Tablet, Stand alone Output: Cadence, Power, Speed Read out on: Bike computer, Computer with ANT+ antenna, Smartphone, Sports watch, Tablet Error Tolerance: <3%

Blackburn's axle conversion kits make your thru axle bike compatible with most trainers and many trailer hitches on the market. The adapter kit is designed to turn your 12mm x 135mm, 142mm, or 148mm thru-axle bike into a trainer-ready machine or a trailer-pulling family explorer. Choosing the correct axle is simple. First, research which axle spacing your bike utilizes (135, 142, or 148mm). Next, choose the correct thread pitch by either comparing your thread spacing to Blackburn's thread scale on the packaging or by matching to one of the brands listed below: - RockShox Maxle - 1.75mm thread pitch - Syntace X-12 - 1.0mm thread pitch - DT x-12 - 1.0mm thread pitch - Shimano E-Thru - 1.5mm thread pitch - DT E-Thru - 1.5mm thread pitch

Whether mashing or spinning, riding in the saddle or out, KICKR’s AXIS feet let cyclists of all types customize the ride feel, enhance feedback and offer a more realistic training experience to match their unique riding style. - Active feedback - A tuned ride  - Reduce fatigue, go longer  - KICKR AXIS feet create a realistic ride feel providing up to 5 degrees of side-to-side movement.

Our Trainer Axle is designed to adapt your thru-axle equipped bike to on-wheel trainers, such as a 1up, Blackburn, Cyclops, Kinetic, Tacx, Wahoo, and many others. Our goal is to fit the thru-axle to your bike perfectly to minimize spacers and extra parts, providing a clean, high-performance axle for your bike. Train, warm up, and be race ready and fit for the season. - When it’s time for your race or time to head outside, simply remove your bike from the trainer, remove the drive side axle end and go. Our axle is suitable for use on or off the trainer, indoors or out. - The axle shaft and axle ends are precision CNC-machined from 7075 aluminum and hard-anodized for rugged durability. - No special tools required. Design allows for installation or wheel removal using your standard 5mm hex wrench. - Designed, built, and quality tested in the USA. Proven around the world. Important: Before you order, make sure your specific trainer will accommodate the width of your modern thru-axle-equipped bike. Measure your trainer at the widest setting and measure the outside width of your bike frame. Our the trainer axle ends will extend past your frame on each side.

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 Saris 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-inch 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- or Saris-branded 20/24" wheel adapter

The Elite Folding Mat increases the comfort of your home cycling setup while protecting the surfaces you train on every day. It's easy to use, store, and transport and can be stored everywhere in your house. Dimensions: 1.8m x .9m

For year-round training and a fully interactive indoor cycling experience, the Flow Smart trainer offers everything you need. Its wheel-on design allows for easy setup and storage. It even connects to your favorite apps, such as Zwift, Tacx, and TrainerRoad. - Wheel-on design sets up with two easy clicks and securely locks in place - Measures speed, power, and cadence - Virtually silent flywheel lets you ride without disturbing others - Works with popular third-party training apps such as Zwift and Tacx - Train with realistically simulated inclines up to a 7% gradient FEATURES Type of trainer: Interactive Smart trainer with electric brake Magnets: 6 Magnets Transmission: Roller, 30mm Electrical requirements: 110-240 Volt Power indicator: None Connection indicator (ANT/BT): None Firmware upgradable: Yes Suitable bikes: Race, Tri, & MTB; if necessary with axle skewer; 29" wheel with Tacx trainer tire Suitable axles: Width of rear fork: Race 130mm, MTB 135mm. Adapters for other widths also available Supplied with: Front wheel support, Quick release for road bikes and mountain bikes (5mm) SPECIFICATIONS Max. power (40 km/h): 800 Watt Max. incline: 6% Simulation of descent: No Max. torque: 15.3 Nm Max. brake force: 45 N Flywheel: 1.6 kg Mass inertia: 11.8kg (26.0 lbs) Calibration: Spin down Footprint (lxw): 675 × 650 mm (26.6 × 25.6 in) Height: 410 mm (16.1 in) Dimensions when folded: 565 × 410 × 245 mm (22.2 × 16.1 × 9.65 in) Weight: 9.41 kg (20.7 lbs) Article number: T2240 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, Tablet, Stand alone Output: Cadence , Power , Speed Read out on: Bike computer, Computer with ANT+ antenna, Smartphone, Sports watch, Tablet Error Tolerance: <5%

The Tacx trainer tires have been developed specifically for riding indoors on bike trainers. The special rubber minimizes the risk of overheating, slipping, and wear and tear. They are also quieter than regular rear tires on both road and mountain bikes. Tacx trainer tires are not suitable for outside riding.

Introducing Tuo, Elite’s new indoor home trainer created in cooperation with Adriano Design. Tuo is an interactive wheel-on home trainer featuring automatic resistance adjustment. It’s a reliable technological companion with a compact design, created to seamlessly fit in any part of your house and to take your training sessions to the next level. It exudes a Made in Italy design that's both understated and distinctive, and that makes it fit right in with your living room or office furniture when not in use. Tuo features a solid, compact structure made with high-quality materials: aluminum resistance unit, steel frame, and legs made of beechwood—one of the most beautiful, sturdy, and solid materials used in interior design. Beechwood is not just about the look though, it’s also perfect for absorbing vibration while training and for ensuring great stability. Additional features include stability-enhancing, anti-slip rubber feet and the Fast Fixing locking system—by engaging a practical lever, you can hook and unhook the bicycle to the support frame in a single quick operation. Light and easy to transport, Tuo features easily foldable frame and legs, so setup is immediate, anytime. Tuo is not just very compact and gorgeous to look at, it’s also quiet. The roller is made in Elastogel material, which is an exclusive polyurethane molecule developed and tested by Elite to limit friction noise by 50% and decrease tire wear. Thanks to the practical side micro-adjustment mechanism and the ability to easily reposition the stand for 29-inch wheels, bicycle setup is simplified. Tuo is the most versatile among our home trainers, as it is compatible with frames with wider chainstays and includes all the necessary adapters to install bicycles with rear axles ranging from 130x5mm quick release to Boost 148x12mm thru-axles. Tuo is a smart, interactive home trainer that connects with multiple apps, software, computers, and devices (smartphones and tablets) with iOS, Android, OSX, and Windows. Data transfer between the trainer and other areas of the system is wireless. Using this feature allows you to manage resistance levels and change display parameters, for convenient personalization and interactivity on your indoor training session. Tuo sends Power and Speed data and can be managed via the My E-Training software (12-month free subscription) or other indoor cycling services, such as Zwift, TrainerRoad, The Sufferfest, Bikevo, Kinomap, and many more.

With the addition of lightning fast WiFi, KICKR continues to stay ahead of the pack as the smart trainer that gives you the most ways to connect, compete and train indoors. - +/- 1% power accuracy - Side-to-side movement - Auto-calibration and firmware updates - Virtually silent operation - Measures speed, distance, power and cadence data - NEW - WiFi connectivity for faster, stable data transfer - NEW - ERG Easy Ramp gets you back in action - NEW - Odometer tracks total mileage

The Elite Thru Axle adapter kit makes Elite trainers compatible with bicycles with 10mm to 12mm diameter through bolts on the rear wheel (lengths from 130mm to 148mm boost). Easy to set up to start right away with your training, this Thru Axle adapter is made from quality material to ensure an immediate setup and great protection to the threads of your bicycle frame. This unit does it all!

Protects the bicycle from sweat and avoids corrosions or rust. - Prevents an accumulation of sweat on the frame and components that would lead to corrosion or affect the finish - Sits above the top-tube and can be adjusted for different bicycles - Washing-machine friendly

Misuro B+ is the perfect sensor to enhance your training sessions with Elite home trainers and rollers. This ANT+ and Bluetooth Smart Speed/Power/Cadence sensor monitors indoor training sessions via smartphone, tablet, cycle computer, or compatible GPS devices when installed on an Elite trainer. - Reads data based on the type of trainer used. - Uses ANT+ and Bluetooth Smart protocols that are compatible with many devices. - When paired with the My E-Training Software, it turns your Elite trainer into an advanced digital instrument that displays and manages fundamental training data.

This height-adjustable front wheel support can simulate both flat terrain and slopes perfectly - Unique design with 5 levels lets you adjust the height of your front wheel to simulate hill climbs up to 6% - Anti-slip rubber feet eliminate handlebar vibrations - Internal design that guarantees maximum wheel stability - Suitable for both road and MTB - You can attach to the trainer frame when not in use for easy transport and storage

The Saris Leveling Block keeps your bike level with your trainer. - Adds stability to your training ride. - For use with any rear wheel-mounted trainer. - Raises front bicycle tire 1.1 inches (2.8 cm) off the ground

- Adapter for Tacx Direct Drive trainer - 01 is compatible with 142 x 12mm and 148 x 12mm - 02 is compatible with 135 x 10mm - 03 is compatible with 135 x 12mm (w/5 mm spacer included with every Tacx Direct Drive trainer), 142 x 12mm and 148 x 12mm - 04 The thru axle adapter kit is for bikes with a 12 mm thru axle. The axle adapter is required to couple the rear stay with the thru axle mount on a Tacx NEO or FLUX Smart trainer.

Adapts a thru axle hub bike for a Saris bike trainer. - Trainer Thru Axle Adapter For Saris Trainers - Thread pitch: 1.00 & 1.75 What's Included: - Thru axle - Washers - Endcaps with bolts Trainer Compatibility The Saris Trainer Thru Axle Adapter is designed for indoor use on Saris trainers only and should not be ridden outdoors. Compatible with current basic trainers. Not compatible with CycleOps PowerSync trainers. Contact us with trainer compatibility questions. Bike Compatibility Many bike manufacturers do not publish thread pitch or hub spacing online. If you are unclear as to what type of thru axle your bike uses, please contact us.

The Wahoo KICKR SNAP makes indoor training a "snap!" It's a convenient, easy to set-up wheel-on smart trainer with the realistic ride experience Wahoo smart trainers are known for. The SNAP's legendary flywheel features technology that creates the same resistance experienced when riding outdoors. Plus, no other indoor bike trainer has more software training options, including Zwift and Trainer Road. The KICKR SNAP includes LED lights for connection status, third party power meter support, and the power measurement is now accurate up to +/-3%. - Designed for consistent power measurement of up to 1500W and accuracy of +/- 3% so that you can monitor and adjust your intensity. - Visual confirmation that KICKR SNAP is powered, connected and transmitting via Bluetooth Smart and/or ANT+ - 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. - 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 to be controlled from any FE-C enabled device or application. - SNAP's wheel-on design makes it easy to turn your road, mountain, or TT bike into a powerful indoor smart trainer. - Made from high strength carbon steel and featuring a wide stance, SNAP is designed to keep its feet firmly planted on the floor and your bike securely locked in so you can train with confidence. - When connected to your device, it automatically sets your resistance via your favorite app or software - The SNAP 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 Trainer Road. - Get vital cycling metrics on your indoor ride. - Low operating sound, so no shouting required! - Works with popular training apps such as Zwift, The Sufferfest, Fulgaz and TrainerRoad. - Compatible with a third party power meter.

The E-Thru Trainer Axle allows the use of a mountain bike in a Tacx trainer. These axles are only suitable for Tacx classic trainers.

You’re already a proud owner of the Omnium Over-Drive Bike Trainer, but today you’re looking for a resistance-free, simple and effective spin session. Designed to be lightweight and portable, the Omnium Zero Resistance Sled is adaptable to whatever bike you ride and whatever workout you’re targeting – let the Zero-Drive Sled be your next training accessory. - Precision machined 4.25” aluminum rollers create a smooth and quiet ride - Dynamic, free-floating rear wheel design promotes the most realistic, road-like riding experience - Adaptable to virtually any bike (up to 1348mm wheelbase with optional extender) - No tools required to assemble or store — simply unfold for use and fold for storage and travel - Maintenance-free resistance unit and roller bearings - 3-Year Warranty

Adjust resistance on Mag trainer without leaving the saddle. - Quick Release mounting system fits most stems. - For use with the Mag bike trainer only

Protects your floor from sweat and bike grime. Product Features: - Protects your floor from sweat and bike grime. - Keeps your trainer from "walking" during intense workouts. - Durable construction absorbs vibration and noise. - Training mat measures 65 x 36 inches. - Black PVC foam gives the training mat superior sound absorption. - Resistant to moisture, and easy to clean with soap and water when necessary.

The Gel Block is an indispensable accessory for perfecting your position on the bike and provides a more natural feel to your training. - Reduces vibrations on the handlebars for more comfortable training - Non-slip Elastogel insert ensures maximum stability and alignment of the front wheel - Suitable for road and MTB

Take your ride inside with Tacx Boost. You won't need external power to use this trainer, thanks to a forceful magnetic brake that allows you to directly apply resistance or lighten it. Resistance can be controlled with a lever on the handlebar. The setup is easy—with just two simple clicks you mount your bike and you are ready to ride. The Boost bundle includes a speed sensor so you can track how far and how fast you're riding indoors and train with your favorite app. SIMPLE SETUP With just two simple clicks, you'll be ready to ride. SMALL BUT STABLE This indoor trainer has a small footprint, 675 x 650 mm (26.6" x 25.6"), but provides a sturdy ride. EASY TO STORE Multifunctional front wheel support serves as a handle to carry the trainer and ensures a natural cycling position. MAGNETIC BRAKE You won't need external power to use this trainer, thanks to a forceful magnetic brake that allows you to directly apply resistance or lighten it. RESISTANCE CONTROL A simple lever on your handlebar lets you control the resistance; 10 levels, up to 1,050 watts. REALISTIC RIDE FEEL An actual flywheel generates a realistic and smooth pedal stroke. SMOOTH AND QUIET The closed resistance unit reduces noise and makes for a smoother ride. FEATURES - Type of trainer: Basic Smart trainer with magnetic brake - Virtual Power: Virtual Power - Magnets: 2x8 Permanent ferrite magnets - Transmission: Roller, 30 mm - Electrical requirements: No voltage required - Power indicator: None - Connection indicator (ANT/BT): None - Firmware upgradable: No - Suitable bikes: Road, Tri, & MTB with skewer quick release - Supplied with: Front wheel support, quick release for road bikes and mountain bikes (5mm) SPECIFICATIONS - Max. power (40 km/h): 1050 Watt - Simulation of descent: No - Max. torque: 17 Nm - Max. brake force: 50 N - Flywheel: Actual of 1.6 kg - Mass inertia: 9.18 kg (20.2 lbs) - Footprint (LxW): 675 x 650 mm (26.6 x 25.6 in) - Height: 410 mm (16.1 in) - Dimensions when folded: 565 x 410 x 245 mm (22.2 x 16.1 x 9.65 in) - Weight: 8.53 kg (18.8 lbs) DATA OUTPUT AND CONTROL - Wireless communication: ANT+ & Bluetooth - Control by: Handlebar resistance lever with 10 positions - Output: Speed - Read out on: Bike computer, Computer with ANT+ antenna, Smartphone, Sports watch, Tablet - Trainer Type: Basic, Manual, Wheel-on, Wheel-on - Features: Smooth ride feel, Silent, Powerful, Manual resistance control, Enables virtual power, Handlebar lever, Dual material roll, Resistance roll 30 mm, Actual flywheel, Foldable, Easy to carry, Easy to set-up, Suitable for power workouts, Suitable for interval training - Positions: 10 - Suitable axles: Width of rear fork: Road 130 mm, MTB 135 mm. Adapters for other widths available

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.

The TPH-1 Tablet Grip from Minoura is the ultimate tablet holder for indoor training. Fitting a diameter between 28mm and 35mm, this stand will fit most bicycles. - Perfect accessory to use with LiveTraining Apps, The Sufferfest videos, or other media - SM clamp easily mounts or dismounts from the handlebar or tube - Spring-loaded clamp system is simple to use and securely holds your device in place - Holds from a 7.9 to 9.7 inch screen with 360 degree rotation system - Can mount to your repair stand so you can easily reference the Internet when working on your bike

Top resistance unit, innovative frame: excellence renewed - 8 resistance levels adjustable by a practical selector on the handlebar. - Use the Misuro B+ sensor for compatibility with the My E-Training or third party apps. Tech info - Novo frame: integration of steel and technological plastic materials. - Magnetic resistance unit, very compact. - Maximum stability at high speeds or at maximum effort guaranteed by the absorbing structure of the frame. - Lifting of the bicycle is limited to the minimum. - Fast fixing system: the bicycle can be clamped and released with a single quick operation. - New adjustable support system, allowing an adequate and constant pressure between the roller and tire. - 30 mm diameter elastogel roller. - The training roller folds up easily and becomes compact for easy transport or storage when not in use. - Adapts to all wheels from 24" to 29".

Of course you love your Omnium Trainer, but you’re left wondering how you could possibly love indoor cycling training even more. Easy, our non-slip and water-repellent (aka sweat) Floor Mat is designed to keep you safe and protect your floors while in your cycling cleats indoors. And because your cycling training plan asks for incredibly intense efforts, the Floor Mat can ensure firm contact with the ground and prevent movement during leg-busting intervals. Add a Sweat Guard to your indoor cycling collection and you’ve got a training party! - Non-slip surface keep you safe while in cycling cleats - Protects floors from sweat and bike grime - Water-repellent surface does what it was designed to do – keep sweat off your floor - Compress-ability ensures trainer stays put during intense efforts - Easily rolls up for storage - Cleans easily with soap and water - Absorbs noise and vibration - Enhances overall stability of any indoor trainer setup - 4mm (5/32?) thickness is optimal balance of support and storage

The Training Mat is the finishing touch to your training area. Placed between the home trainer and the floor, it improves comfort and protects your home from oil, dirt, and sweat. Plus, it limits the noise produced by training, especially on wooden floors. - Easy to roll up and store away - Dampens vibrations - Easy to clean - Length: 1800mm - Width 900mm

- Sram XD and XDR freehub for Direct Drive trainers (Drivo and Direto's family, Suito, Turno, Kura, Turbo Roteo and Volano). - Compatible with 12 speed cassette.