Mountain Bike Drivetrain Damping Module
Includes two adjustable modules that mount to your swing arm + new profiled end caps for a more solid connection to the swing arm. 
Dual compound - hard plastic insert keeps the unit stiff and in place with soft over-mold for sound damping.
Contains and controls chain slap so you can focus on the trail ahead
Suits Trail Bikes with 1X gearing (single front chain ring)
9 - 13 speed with up to a 52 tooth cassette
Dual compound design for optimal stiffness, durability and sound damping
Trim to length for custom fit on most bikes
Light weight and silent
International Patents Pending
Instructions