Integrated heel system ensures efficient heel retention

If you have SRAM Eagle carbon cranks then these are the booties for you

LED charge indicator

Narrow/wide tooth profile designed to retain the chain without the need of a chain device

Park BBT-19.2 Standard 16 Notch 44mm External Bottom Bracket Tool PLP|EMTB Optimised Integrated heel system ensures efficientTop Quality Bottom Bracket Tool Suitable for use on 16 notch, 44mm outer diameter bottom brackets, the BBT 19. 2 is designed to be used with a 3 8" drive ratchet, enabling it to be used with a torque wrench such as the Park Tool TW 6. 2. Suitable for use on all 16 notch external bottom brackets including: Shimano Hollow Tech II Truvativ GXP Race Face X type SRAM FSA Chris King Hope Campagnolo Note that this will not fit Race Face 30mm spindle BB's.