Reinforced to ensure it doesn't crack easily. 

Please do bear in mind these are consumables and do wear and break over time.

* includes all the internals you need.

* To use with CowCow BBU or the ‘ELITE’ BBU, a small amount of fitment may be needed to allow for a smooth action.

*Use smallest O-Ring on CowCow BBU, if it feels too tight when its fitted, spin the piston head until it's smooth.