FSA Headset Star Nut Driver Tool MPFN-371-0041005960 Provides Boost 148mm chainline on

Provides Boost 148mm chainline on XCX Mountain cranks and 142mm chainlines on XCX Gravel cranks

7cm wide at the drops (outside to outside)

Smooth reliable performance with minimal maintenance

And that muscle is needed when zipping around cars and corners at full pace

6/40mm) offset 42mm axle-crown 490mm brake mount disc only (PM-160) dropout 15x100mm TA weight 725g (1

FSA Headset Star Nut Driver Tool MPFN-371-0041005960 Provides Boost 148mm chainline onStar nut threads onto driver. Driver slides up into guide tube Guide tube fits over outside of 1 1 8 inch steerer Hammer on the round end of driver until steerer contacts driver stop Properly aligns and seats star nut at a consistent depth TECH SPECS description star nut guide driver tool, 1 1 8"