Headset spacer kit includes:

Rear-specific tread design

If you're looking for an additional mount for a second bike

CAPACITY - 90 psi / 6 bar

It comes as two different versions

Fox Baseframe Pro SL Protective Vest Exclusive Headset spacer kit includes:The Fox Baseframe Protective Jacket is for aggressive riders looking for a subtle layer of protection. This breathable base layer vest has built in guards on the chest, hips and a CE certified impact absorbing D30 F3 back insert. All easily removed for washing. These have been designed to be worn under your jersey and can also be worn in conjunction with other Fox guards. Made from a stretch mesh fabric that is moisture wicking, breathable and form