SRAM S150 Eagle Transmission B1 Crankset Speed: 12 BCD: Direct Mount SRAM 3 Bolt 32 Powerspline 155mm Black BoostThe SRAM S150 Eagle Transmission Crankset provides confidence with robust aluminum cranks and a sturdy steel T Type chainring. Available in progressively shorter lengths, and with a finish that pairs well with Eagle 70, giving you more options to bring Eagle Transmission to more riders. 3 Bolt Steel Eagle T Type direct mount ring Use 118 73 Powerspline Bottom Brackets SRAM Model ID: FC S150 B1 TECH SPECS BCD Direct Mount SRAM 3 Bolt BB Inclusion No