|STM slipper clutch-only products
Changing the spring rate can change engine brake release timing.
Select the small rate spring if if you want aggressive engine brake in STD large rate slipper mechanism immediately want to Flex.
Start Date:01/09/2017 00:00 JST
End Date:30/11/2017 23:59 JST
This product cannot be shipped to United States from the store.
Please contact the store for further information.