Thunderbolt Cranks, 170mm, Black

- Proven 41-step thermal-processed 4130 Chromoly for unmatched strength and durability\n- Legendary lifetime replacement warranty backed by rider confidence\n- Laboratory tested and team proven for top performance in all conditions\n- Right-hand drive with traditional sprocket press-fit interface requires 15/16” hole\n- Updated open-ended spindle cap for easy maintenance\n- New wedge cluster band design offers greater flexibility and secure fit\n- Never-Wobble crank arm and spindle interface guarantees zero play over time\n- Dealer Notice:Third-party online sales are strictly prohibited by the manufacturer\n- Available exclusively through authorized BMX retailers