The adjustment groups XXF are quickly editable by replacing the compression valve XD and the exstension valve XS.

The set up provided is identified by  label placed on the adjustment group's body. The Bitubo racing department has developed for each very specific set ups coming from team riders who participated in championships around the world, now available also for you, or with specific damping coefficients.

Bitubo supplies valve groups complete both at one speed that  at two speed and supplied with relevant charts. XXF can be completely revise.

If you would like to buy this product CLICK HERE