Sram X01 Eagle Chain 12sp Silver Drivetrain Youngsters can learn how to

Youngsters can learn how to use hand brakes quickly

Easy connection (SM-CN910-12)

ABEC 3 radial bearing with 18 mm inner diameter

Enduro Bearings MR18307 LLB - ABEC 3 - Ball Bearing - 18x30x7mm

Sram X01 Eagle Chain 12sp Silver Drivetrain Youngsters can learn how toIt might look normal from the outside, but the engineering inside this incredible new chain design that makes possible a gear range previously found only in 2 chainring drivetrains. And its also the biggest contributor to the Eagle drivetrains ultra smooth, precise, durable and quiet performance. The Eagle chain links have a smooth radius, with no sharp edges or chamfers, which yield a significant reduction in noise, friction and wear on chainrings