Odyssey Thunderbolt cranks are an evolution of the Twombolts. They feature a true two-piece crank, one bolt configuration. The unique wedge cluster is the heart of the system, this design optimizes the arm/spindle interface, and simplifies assembly. Thunderbolt cranks feature an updated mating arm lug for increased durability and improved fit on the ultra-hollow 22mm spindle. The open ended spindle cap adds visual appeal. Thunderbolt arms and wedge clusters are compatible w/ existing Twombolt cranks.
Laboratory tested and team proven
Updated open-ended spindle cap
New wedge cluster band with greater flexibility
Never-Wobble crank arm and spindle interface guarantee
41-ThermalÎÂ lifetime replacement warranty against bending, cracking and breaking
Traditional sprocket interface
165mm, 170mm, 175mm or 180mm
RHD or LHD
1 lb. 11.8 oz. (788g)
US Pat. Nos. 7,267,030, 7,523,684, 7,523,685, and/or 7,770,492
WILL NOT WORK WITH PROFILE, TREE OR SPLINE DRIVE SPROCKETS.
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