evo.com | Race Face Crank Sets > While the kids are busy "crankin' dat Soulja Boy," get down to business with the powerful and efficient pedaling of the Race Face Atlas Crank Arms. Manufactured from an OPTIM-AL aluminum that's 20% stronger than traditional 7050 alloy, the Race Face Atlas Crank Arms are a freeride and downhill oriented crank with an updated EXI interface to make self-installation and removal painless and smooth. OPTIM-AL Over 20% stronger compared to the commonly used 7050 alloy. EXI (External ISIS) EXI interface complete with one key hex release puller cap. Fat Tab(TM) Fat Tab(TM) technology for increased strength and compatible with all 4.5mm tab offset bashes. Alloy Hardware New Revamped Team BB | Race Face Atlas Crank Arms 2026 - 165mm, 68/73mm in Black Size 165mm 68/73mm | Aluminum