Xtrig PHDS Rubber Bar Mount Kit M12 (Optional Sizes) 

To suit M12 XTrig Triple Clamps Only.

These are for bars size 22.2MM 7/8 

The PHDS (Progressive Handlebar Dampening System) is a system supported by elastomers designed to absorb engine and chassis vibrations. The system also dampens the forces acting on the handlebar in a horizontal and vertical direction, maintaining steering precision. The handlebar can be adjusted in 12 different positions when the PHDS is mounted.

Any questions dont hesitate to ask 

Midlands Mx