For a limited time, this coach also receives a free BKOOL training mat for € 49.99! (While supplies last) Innovative and avant-garde design to bring you closer to reality. The resistance unit is suspended in the air, which allows the user to balance the bike, to feel the sensation of pedaling on the road and to protect the bike against twisting. Pedal training: designed to allow cyclist to balance the bike with a real sense of freedom. and security. Tilt System: The Smart Air system features a 6-degree tilt mechanism for an even more enjoyable experience. Frame Frame: The coach's outer frame represents the tire on your bike. Feel the freedom of movement on the road, both sitting and standing.Powerful: Able to generate up to 3,000 W of power. Thanks to its powerful engines, the Bkool Smart Air can simulate slopes up to 25% and reach more than 70 km / h.Precision: direct drive trainer with sensors to offer realistic values of speed, cadence and power . With its revolutionary infrared sensor power measurement system, it provides data with a margin of error of less than 2%. Bicycle Frame Protection: Bkool Smart Air Chassis Rigidity Designed to Protect Silent Bike Frame: One of the Quietest Direct Drive Trainers on the Market with Cooling System and Internal Drive System . Key Features: Power: 3000 W, Power Meter Error Range: <2%, Gradient Simulation: Up to 25%, Communications: Bluetooth and ANT + (antenna included)., Rear Axle Compatibility 12 mm: Yes (Bikes with 12x142mm, 12x145mm - boost - and 12x148mm - boost: rear axles are supported), Dimensions: Height 71 cm x Width (between the ends of the legs) 70 cm + Length (legs included) 84 cm., The Smart Air features a 6-degree tilt mechanism for an increased driving feel, designed to fit any road or mountain bike on the market., Compatible with: Shimano or Sram cassette from 7 to 11 speeds. With Sunrace 12 speed cassettes for Shimano or Sram core. BTT., Campagnolo change bikes also work perfectly with a Shimano or Sram cassette, or Miche or Sunrace.