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The Thunderbolt is one of the most technically advanced crank designs on the market. Due to continued advancements in Odyssey’s 41-Thermal processing and heat-treatment system, fatigue life has been increased by a massive margin.

• The Thunderbolt is one of the most technically advanced crank designs on the market. Due to continued advancements in Odyssey’s 41-Thermal processing and heat-treatment system, fatigue life has been increased by a massive margin.
• 22mm hollow spindle welded to drive side arm for increased strength and stiffness
• Updated open-ended spindle cap
• New wedge cluster band with greater flexibility
• Never-Wobble crank arm and spindle interface guarantee