New for 2025! Our trusty 41-Thermal® Heat-Treated Thunderbolt cranks sized specifically for the growing DJ/MTB scene.
Based around our test riders' repeated requests for cranks with BMX-level durability, the Thunderbolt DJ crank takes our proven design and adds a longer spindle for compatibility with 73mm Euro bottom bracket shells.
In addition, we also have a 22mm Euro BB specifically designed for 73mm BB’s with a 51.5mm tube spacer.
The Thunderbolt is one of the most technically advanced crank designs on the market. Due to continued advancements in our legendary 41-Thermal® processing and heat-treatment system, fatigue life has been increased by a massive margin.
Never-Wobble™ crank arm and spindle interface guarantee
73mm Euro BB spindle length
Flush sprocket bolt hardware for improved clearance
Specs
Lengths:165mm and 170mm Drive Side:RHD Spindle: 22mm Sprocket Interface:Press-fit. Must use sprockets with 15/16" hole. Spacer Width:51.5mm for 73mm BBs Weight: 1 lb. 11.8 oz. (788g) US Pat. No. 7,267,030
