this all-purpose MTB helmet is fitted with 360 Turbine technology

Chainline: 49 - 56mm depending on offset ring

1 x CushCore tubeless valve

then it will protect your chain in all riding conditions and allow you to ride longer between applications

make sure you install it correctly the first time

Race Face BSA30 Bottom Bracket Wrench PDP|Option this all-purpose MTB helmet isRace Face's very own tool for installing their threaded Cinch BSA bottom brackets. The equivalent Park Tool to this is the BBT 79 Material: Steel Race Face Part Number: D30146 Compatibility: Does not fit Shimano Hollowtech II or SRAM GXP cups, however, this will fit the SRAM DUB threaded bottom brackets