SERIOUS AND PRECISE POWER- Enhanced by automatic calibration, the KICKR stands up the demands of the world's most powerful cyclists by delivering 2,200 watts of resistance that's accurate to within +/- 1%. REALISTIC RIDE FEEL- KICKR’s professional-grade high-inertia 16lb flywheel and AXIS feet combine to provide an ultra realistic ride feel. SMART RESIST- Set your resistance or power threshold through your favorite app for the most efficient workout possible. THE MOST POWERFUL AND REALISTIC INDOOR TRAINER EXPERIENCE. Power and accuracy designed to offer the world’s most demanding cyclists the ultimate indoor riding experience. KICKR AXIS Feet  PROFESSIONAL-GRADE CONSTRUCTION - KICKR’s robust steel construction and a wide stance provide the durability and stability needed to endure years of high-intensity training.

The Wahoo RPM cadence sensor is your sleek little solution for measuring cycling cadence data. It is wireless, magnet-less, lightweight, and easily mounts to your bike's crank arm or to your shoe. Bluetooth Smart and ANT+ dual band technology allows you to connect to and display data on both smartphones and GPS bike computers. Collecting cadence data has never been this easy. - Both ANT+ and Bluetooth Smart capabilities allow for a wireless connection to both smartphones and bike computers. - No tangled wires on your bike to connect the sensor to your device. - It only weighs 7 grams! - Provides accurate cadence data during your ride - (1) mount with double sided 3M tape, or (2) use the silicone sleeve and mount with zip ties. - The RPM can be worn on your shoe for spin classes or use with multiple bikes - Two LED lights show the sensor's device connection (blue) and cadence detection (red) - No charging required! Operates on a coin cell battery for up to 1 years. - RPM cadence sensor will fit with most bikes and frame sizes

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.

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%

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

Stick to your fitness plan year round with the help of the Saris Mag+ trainer. It is the perfect way to keep your legs warm when it's cold, dry when it's wet, and safe when it's too dark to ride outside. With this turbo trainer, it's easy to turn your bike into your go-to calorie burner — no matter the season. Simply attach the handlebar-mounted shifter to change resistance during your workout without having to leave your bike. Want to train with Zwift or Rouvy? All you need is a speed sensor. Visit our setup guide to learn how to get started. - Magnetic resistance unit provides a quiet and frictionless ride. - Linear resistance boosts workout intensity to match each pedal stroke and gear click. - Mag+ comes with convenient, adjustable handlebar-mounted shifter. - Compatible with Zwift and other indoor cycling apps

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. 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. HOW FAR AND HOW FAST Add a speed sensor (sold separately) to track how far and how fast you're riding and train with some of your favorite apps. FEATURES - 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)

The Giant Indoor Trainer Mat is the perfect noise-reducing floor protection for indoor training. - Rubberized material for easy rinse off after your workout - ‘Pebbled’ surface, anti-skid and scratch-resistant material protects flooring while working out - Extra-large 3’ x 6’ (91.5cm x 183cm) size covers entire workout area, prevents perspiration from getting on carpets or wood floors - Comes rolled-up in draw-string, mesh carry bag with shoulder strap

Bluetooth and ANT+ Heart Rate Sensor & Calorie Tracker Connect. Track. Share. The TICKR heart rate monitor accurately tracks your heart rate and calorie burn during any activity or workout. Its new design makes it the lightest and slimmest heart rate monitor on the market! Equipped with Bluetooth and ANT+ technology, TICKR offers an easy and reliable way to connect heart rate to your favorite training apps and fitness devices, and now supports up to three simultaneous Bluetooth connections. The new integrated heart rate sensor and strap design provide a more secure connection and fit, so your training can be optimized, measured, and shared. NEW! INTEGRATED CHEST STRAP DESIGN The integrated sensor and strap design of the TICKR provides a more secure connection and a more secure fit to prevent sliding and shifting while working out. NEW! SLIM, LIGHTWEIGHT HEART RATE SENSOR POD At 1.7oz (48g) and 12.01mm thick, the TICKR is the lightest and slimmest heart rate monitor and strap combination on the market, not to mention the most comfortable! NEW! MULTIPLE SIMULTANEOUS BLUETOOTH CONNECTIONS TICKR supports up to three simultaneous Bluetooth connections for a trouble-free start to your workout. NEW! TOP DISPLAY LED INDICATOR LIGHTS Two LED lights show visual confirmation of the TICKR connection status via Bluetooth and / or ANT+: searching for a connections (blue slow blinking light), connecting (blue fast blinking light), and reading heart rate (red blinking at current beats per minute). DUAL-BAND ANT+ AND BLUETOOTH TECHNOLOGY Both ANT+ and Bluetooth capabilities allow for a wireless connection to both smartphones and GPS devices at the same time or separately. REAL-TIME HEART RATE, CALORIE, AND WORKOUT DURATION TRACKING TICKR measures vital workout metrics, including heart rate, calorie burn, and workout duration in real-time with the Wahoo Fitness app. These metrics can also be sent to compatible third-party apps that track these metrics. FRONT SENSOR & STRAP CONNECTION The front connection on the TICKR sensor and strap allows you to gear up and go quickly. You don’t have to fumble through side placements of snaps and hooks. COIN CELL BATTERY Includes a coin cell battery that can last for over 500 hours of workouts. ADVANCED PERFORMANCE MATERIAL STRAP Made from advanced performance materials, the TICKR strap is designed to fit comfortably chest, yet stay securely in place during intense activity. APPLE WATCH AND APPLE TV INTEGRATION Connect directly via Bluetooth to your Apple Watch or Apple TV as another option for gathering heart rate data while you workout. THIRD PARTY APP COMPATIBILITY Works seamlessly with over 50 apps - including Zwift, The Sufferfest, Peloton for cycling and Runkeeper and MapMyRun for running. TECH SPECS - Dimensions (LxWxH): 2.5" L x 0.2" W x 1.5" H (6.3cm L x 1cm W X 3cm H) - Weight: 1.7 oz (48 g) with strap - Battery: Coin Cell (CR2032) - Battery Life: Over 500 active hours - Sweatproof: Yes (Handwashable Strap) - Water Rating: IPX7 (Waterproof up to 5 ft.) - Strap Length: Adjustable from 23" to 48" IN THE BOX - TICKR heart rate pod - Adjustable soft strap - CR 2032 Battery (installed) - Quick Start Guide - Important Product Info Guide

The Elite Smart Sterzo riser block allows steering up to 34 deg while riding your rear wheel trainer while using ANT and Bluetooth communication protocol, interacts with compatible apps to give you the most realistic indoor ride. It’s rotating pivot features a practical automatic return system for you to easily get the handlebar back to its original position. Compatible with tires up to 56mm wide

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

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.

- Adapts a thru axel hub bike for a trainer. - Only compatible with current classic series trainers. - Fits most 142-148 Thru axle bikes with 1.0 or 1.75 thread pitch - Kit consists of an axle, washers, end caps with bolts and a shorter version of our bolt action slider for the classic series trainer. - The axle is threaded on both sides to fit Syntace and Maxle/ABP style thru axle systems.

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.

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

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 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.

A sweat cover with a pocket for your smartphone. The sweat cover protects your bike against perspiration and enables the use of a phone while training. The Tacx sweat cover is made from absorbent textile to catch and retain perspiration. Its clever design fits all bikes and enables easy mounting. Suitable for a variety of phone sizes - max. length 138mm, max. width 68mm.

The Saris thru axle adapter is designed for indoor use on Saris- or CycleOps-branded trainers only and should not be ridden outdoors. - Compatible with Classic series trainers and most Pro series trainers. Not compatible with PowerSync trainers. Contact us with trainer compatibility questions. - This adapter is designed to work with bikes that have a 142x12mm thru axle with 1.0 or 1.75 thread pitch. - The axle is threaded on both sides to fit both Syntace and Maxle/ABP style thru axle systems. - 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 reach out to your local bike shop or the bicycle manufacturer directly. What's Included - Thru axle - Washers - End caps with bolts

KICKR BIKE offers unprecedented innovations such as integrated grade changes, customizable gearing, and simulated shifting to create the most powerful, personalized, and realistic indoor training experience. Using KICKR’s legendary flywheel technology, the KICKR BIKE creates unparalleled responsiveness and power accuracy of +/- 1%. Real-time grade changes will match ascents of up to 20% and descents of -15% while allowing you to maintain speed and truly replicate the sensation of riding outdoors. Its robust steel and aluminum construction will withstand the hardest rides - even if your legs don’t. The Wahoo Fitness app will guide you through an easy set-up of the five points of adjustability on the KICKR BIKE. Choose from either using professional bike fit measurements, taking a photo to measure your bike, or entering body measurements to personalize the fit to the exact geometry of your outdoor bike. The KICKR BIKE can also be customized with your own handlebars, pedals, and saddle. The virtual shifting technology of the KICKR BIKE is programmable to match the exact gear ratios, number of speeds, cassette tooth count, and group set from the leading manufacturers - SRAM, Shimano, and Campagnolo. A digital display clearly communicates both gearing and grade so you always know where you are during every stage of the ride. KICKR BIKE seamlessly integrates with other Wahoo products and easily pairs to your ELEMNT GPS bike computer, smartphone, tablet, or PC. As with all Wahoo smart trainers, KICKR BIKE is compatible with the most popular training apps such as The Sufferfest, Zwift, TrainerRoad and more! KICKR BIKE is not only a smart bike - it’s a training machine that blurs the line between virtual and reality.

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%

Save Your Tires for Race Day Frequent trainer riders often find the tread on their rear wheel will wear down over time. We recommend using our trainer tires on our Saris indoor trainers. They are made of tough material that can stand up to hours and hours and hours of training. Product Features - 700c x 23 – 25 fits most road bikes. - Ultra-quiet and super-durable. - For use with an indoor trainer only.

The Skyliner is a front wheel support for use with Tacx classic trainers. It raises and supports the front wheel for a natural cycling position and increased stability. It also serves as a handle to carry the trainer.

Everything you need for the best indoor trainer experience possible. - Can be used across a wide range of trainer setups. - Includes Trainer Mat, Climbing Block and Saris towel.

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".

Love training when you travel? Need an awesome warm-up and cool-down during weekends at the races? Want to crush that indoor bike trainer workout in a small living space? Meet the Omnium Over-Drive Portable Bike Trainer. The adaptable fork-mount design keeps the rear wheel on the bike and offers the most dynamic ride quality of any stationary bike trainer available. Plus the precision rollers and internal progressive resistance design is so quiet you’ll never disrupt the neighbors. When you’re finished, the elegant folding design hides it in its padded tote like it was never there. Add a Sweat Guard and Trainer Mat and you’re armed with the complete training package. - Dynamic, free-floating rear wheel design promotes the most realistic riding experience of any stationary bike trainer - Patented, Internal Progressive Resistance via friction-less Eddy Current - Parabolic, progressive resistance curve accurately simulates outdoor cycling (rolling + wind resistance) - Adaptable fork-mount and adjustable sled design (16”-29” wheel; Thru-Axle and QR compatible) - Lightweight design for a complete bike trainer system – 14lb (6.35kg) - Precision machined 4” aluminum rollers create a smooth and quiet ride - Included fork adapters: - 9mm Quick-Release - Thru Axle: 12×100mm, 15×100mm & 15×110mm - Available fork adapters: - Cannondale Lefty, 20x100mm (BMX thru axle), 8mm x 74mm (folding bike) - Adaptable to virtually any bike size and geometry (up to 1348mm wheelbase with optional extender) - Maintenance-free resistance unit and roller bearings - Includes heavy-duty tote bag for easy transport and storage - Compatible with cycling apps: Zwift, The Sufferfest, TrainerRoad and Kinomap traditional trainer features* - Patent number: 9,393,475 *Requires ANT+ or BT rear wheel speed sensor

The Wahoo KICKR Desk is the desk for multi-tasking. Use it as an indoor cycling desk with your KICKR or as a standing desk in your office. It's fully adjustable to allow you to easily optimize for and switch between the following: - Standing - Sitting upright - Riding with hands on hoods - Riding in the drops - Riding in aero bars The desk has built-in tablet and smartphone stands and built-in holes to connect all your computer technology. A steel frame makes it sturdy and a slip-resistant surface will keep everything in place - no matter how much you sweat. - With the push of a button, you can lower or raise the desk to sitting or standing position. - Easily move the desk out of your sweat zone. The desk can roll through most doorways. - Get maximum stability and sturdiness with the formed steel tube frame and baked-on polymer finish. - Prop up and secure your tablet or smartphone in the desk and see your cycling app while on your KICKR or screen while working. - Keep all your technology untangled and out of the way with cord holes integrated into the tablet/smartphone stand. - Rubber mat keeps everything in place on the desk, no matter how much you are sweating or how hard you are working.

Whether mashing or spinning, riding in the saddle or out, KICKR AXIS feet let cyclists of all types customize the ride feel, enhance feedback, and experience a more realistic training setup by providing up to 5 degrees of side-to-side movement. KICKR AXIS feet enhance natural movement on the bike by minimizing pressure touchpoints, thus reducing fatigue and allowing you to train longer. KICKR AXIS comes with three stiffness options - easy, medium, and hard - so cyclists are able to to match their unique riding style and preferences. NOTE: KICKR AXIS is NOT compatible with KICKR CORE and KICK SNAP

The Tacx Sweat Cover protects your bike from corrosion caused by perspiration. It is made from absorbent textile to catch and retain perspiration. Its clever design fits all bikes and enables easy mounting.

Look, your child is destined for greatness. We won't dispute that. But, why wait until they can walk for them to rock their awesomeness? If they're crawling, they're ready to explore the world. Attach the Strider Rocking Base to a Strider 12 Bike and get them rocking. The rocking base doesn't just familiarize them with a bike, the rocking motion helps develop their balance, spatial awareness, and core strength. No batteries. No annoying sounds. Just pure, rocking fun. - Compatible with the Strider 12 Classic, Sport, and Pro Balance Bikes - When the Strider 12" Bike is attached this product is intended for ages 6 months – 5 years old for Strider Sport and Pro, and ages 6 months – 3 years for Strider Classic.