FSA SL Hybrid ACB Bearing 1.5" 36°x36° CheckoutSpec= Lefty 60 Hub There are 4 radius measurements

There are 4 radius measurements one per side that measure the sole and indicate whether a shim is needed or not

Widely spaced center lugs that grip well and shed mud quickly with progressive shoulder tread that grips securely in the corners

model large spindle CrMo size 9/16" color navy blue weight 348g

Rear Derailleur Mount Type Shimano Rear Direct Mount Rear Der/Shifter Compatibility Shimano Road Di2 Cage Length Long Drivetrain Speeds 11 Weight 318 Color Black Chain Wrap Capacity (teeth) 31 Largest Cog 42

FSA SL Hybrid ACB Bearing 1.5" 36°x36° CheckoutSpec= Lefty 60 Hub There are 4 radius measurementsFSA SL Hybrid ACB Bearing 1. 5" 36x36 Silver. FSA bearings that set directly into the frame without the use of pressed in cups. 36 45 degrees is Cane Creek compatible 45 45 degrees is Campagnolo compatible