The all-new SD B-85 Crankset is engineered to deliver pro-level strength, stiffness, and reliability across a complete size range from 140mm to 180mm in 5mm increments. Unlike many brands that separate smaller crank sizes into lower-tier product lines, the SD B-85 maintains the same robust 2-piece construction and race-ready durability across every size, making it ideal for both younger riders and elite racers pushing bigger jumps and higher power output.
One of the standout features of the B-85 is its innovative direct-mount chainring bolt system. Instead of traditional two-piece chainring bolts, the hex bolts thread directly into the crank arms, allowing for quicker, easier, and cleaner chainring installation and changes.
Built for performance, durability, and simplicity, the SD B-85 delivers exceptional value while maintaining the stiffness and responsiveness serious BMX racers demand.
Features:
Full crank size range from 140mm to 180mm in 5mm increments
Durable 2-piece crank design
Pro-level stiffness and strength across all sizes
Innovative direct-thread chainring mounting system
