A 2-piece crank, the Thunderbolt is an updated version of the Twombolt. Made of 4130 Thermal Chomoly, Odyssey is now using a different manufacturing process that makes the Thunderbolt even stronger than it's predecessor. The spindle has a six-sided wedge cluster, which allows for easier installation, and the drive-side now has an open-ended spindle cap which further reduces weight. Includes a hollow spindle bolt to reduce weight. LIFETIME WARRANTY!

• Arms: 165mm
• Spindle: 22mm
• Traditional sprocket interface
• Weight: 27.8oz/788g

*22mm Bottom Bracket not included