Single-ring drivetrain simplifies functionality and provides the simplicity that cyclocross racers crave and the tighter gearing range is perfect for road racing and riding in flatter terrain. Power readings are accurate within +/-1.5% and aren’t affected by climate conditions during a ride. Power balance measures left and right legs separately. Sram X-Sync wide-tooth narrow-tooth chainring technology provides maximum chain control. Laser-etched chainring finish is more durable. DUB bottom bracket adds durability and simplicity