Performance: Helps balance acceleration and speed .
Installation: Direct replacement for rollers with no modifications needed.
Description
This product is suitable for the following models
300 2008-2012
250 2005-2011
250 2006-2009
200 2003-2007
125 2003-2005
4T 125 2007-2011
Roller Set 21X17mm 9g 11.5g 13g 14g Weight ±0.3g
Model Name : 21x17mm