Wolf Tooth Elliptical Direct Mount Chainring - 34t SRAM Direct Mount Drop-Stop B For SRAM 3-Bolt Boost Cranksets 3mm Offset BLK MFPN=40050817029 Chain materials are treated to

Chain materials are treated to significantly increase the life span

Classically sprung for supreme comfort the B67 and B67 S feature single rails for attachment to modern micro-adjust seat pillars

Vacuum sealed

}Shimano ES300 73 x 118mm Octalink V2 Spline English Bottom Bracket

Wolf Tooth Elliptical Direct Mount Chainring - 34t SRAM Direct Mount Drop-Stop B For SRAM 3-Bolt Boost Cranksets 3mm Offset BLK MFPN=40050817029 Chain materials are treated toElliptical shape for improved power transmission Asymmetrical tooth shape for the best wear life, chain retention and mud clearance Fits SRAM and other 3 bolt direct mount cranks Dished ring provides 50mm chainline on GXP or BB30 PF30 long spindle (with15. 4mm drive side spacer) Drop Stop B rings are compatible with 10 11 SRAM 12sp chain and Flat Top Transmission chains. Not compatible with Shimano 12 speed Made in the USA from 7075 T6 aluminum alloy