Odyssey Thunderbolt Crankset - 170mm Right Hand Drive Rust Proof Black. The Thunderbolt is Odysseys tried and true Thunderbolt cranks but now features updated graphics. The Thunderbolt is one of the most technically advanced crank designs on the market. Due to continued advancements in Odysseys 41-Thermal processing and heat-treatment system fatigue life has been increased by a massive margin.

Proven 41-Thermal processed 4130 chromoly

Laboratory tested and team proven

Traditional sprocket interface

Updated open-ended spindle cap

New wedge cluster band with greater flexibility

Never-Wobble crank arm and spindle interface guarantee