88 Components Negative Air Spring for RockShox Boxxer World Cup 2011-2014 increases the volume of the negative air chamber in the fork’s spring. This gives the fork a much more linear feel through the first 75% of the travel,with a nice progression for the last 25%. To be used for direct replacement of the OEM part.
Note: For better performance we sujest to change all seals in the Air Spring. We offer the Service Kit as a separate product.