The 137mm Spindle length is suitable for 51mm Boost Chainlines

Protection level: These are a moderate level of protection

NX 11-speed X-ACTUATION™ Grip Shift

What's in the box: Comes with adapters to run QR x 100mm or 12 x 100mm

Fox Titan Sport Jacket - S - Cool Grey PLP|Riding Style The 137mm Spindle length isThe Fox Titan Sport Jacket is a serious bit of gear that is suitable for riders wanting maximum protection from those gnarly crashes. Your upper body will be protected while the vented mesh fabric used in the main body will still allow for airflow. Extra attention and coverage has been paid to the shoulder and elbow area which uses high impact plastic. A removable back protector is included which can also be worn separately if desired. The titan is CE