Inheriting the functionality of KICKR KICKR with high power precision, simple and stable design, KICKR CORE provides a realistic and precise indoor training experience. It integrates KICKR Smart Trainer cadence measurements, with proven flywheel technology and advanced algorithms. BUILT TO LAST: KICKR CORE delivers the high quality cyclists from all over the world want to Wahoo Effective for intense training sessions no matter the season. The CLIMB compatible KICKR CLIMB paired with KICKR CORE to incorporate realistic uphill and downhill rides, so you can train more effectively than ever. Connected ride KICKR CORE pairs seamlessly with Wahoo KICKR trainer accessories, Wahoo ELEMNT cycle computers, Wahoo sensors, and popular apps and software to create the ultimate indoor training environment. KICKR CORE is the newest product of Wahoo Smart Indoor Cycle Trainer. With superior flywheel technology and advanced algorithms of the renowned Wahoo indoor cycle trainer, you can perform realistic, accurate, and quiet indoor training. KICKR CORE indoor trainers are durable enough to be used for any indoor training session. It is also compatible with a wider range of training apps and software than any other smart trainer and can be used with Zwift, Trainer Road, etc. Features Optimized Flywheel technology Ultra-quiet operation Controls resistance Realistic ride Simulates up to 16% slope +/-2% power accuracy Supports through axles Disc brake space Connects via ANT+, ANT+ FE-C and Bluetooth Connects to multiple Blurtooth LED display light Professional durability Measures speed, distance, power and cadence KICKR Compatible with HEADWIND Compatible with ELEMNT GPS Cycle Computers Compatible with KICKR CLIMB Compatible with other Apps Supports other power meters from other companies, Bonus Bonus! Offers free trial of your favorite App Partner Specifications Part Number: WFBKTR4 Dimensions (when leg open): 20"(L) x 23"(W) x 19"(H) Dimensions (leg closed): 9.0"(L) x 23"(W) x 21.0"(H) Weight (without box): 39.0 lbs (18.1 kg) Rear wheel Size: 24" R D / 24" MTB / 650c RD / 26" MTB / 700c RD / 650b MTB / 29" MTB / Hub Type: 130/135mm QR, 12x142, 12x148 thru axle Adapter: Yes Drivetrain: Cassette not included. Purchase/Installation of new cassettes: 8/9/10/11 speeds, SRAM/Shimano KICKR CLIMB: compatible, RPM Cadence: not included Front Wheel Blocks: Not included Resistance Type: Electromagnetic Accuracy: + / - 2% Wireless solution update: Yes Supports other power meters: yes, Connectivity: ANT+ FE. -C, Bluetooth Devices : IOS, Android, PC (Mac, Windows) Users Maximum Weight: 240 lbs (113.4 kg); Power Requirement: 100 - 240 V - 1.5 A, 50 - 60 Hz; Fly Hole Weight: 11.3 lbs (5.4 kg); Maximum Simulation Grade: 16% ; Maximum Power Output: 1800 W.