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Thesis Hollow-Forged AL Crank
Strong, stiff, light: pick 3. How do you create a crankset that achieves extraordinary stiffness-to-weight in an easily serviceable package that isn’t afraid of a rock strike? Take two billets of 6061 AL. Smash each under 600 tones of force to form two hollow, box-section arms. Then take another billet of 7075 aluminum alloy and machine it into a large diameter, wide-stance BB386EVO spindle to push the bottom bracket’s oversized bearings as far apart as possible for even more stiffness and durability. Sandblast rather than polish all surfaces to pound-out microfractures, machine out required interfaces, and anodize everything for an even harder and longer-wearing finish.
- Hollow-forged 6061 AL arms - Machined 7075 AL spindle - Wide-stance BB386EVO spindle (30mm x 86.5mm, reducible to other 30mm standards using spacers including BB30, PF30, OSBB, 68mm BSA, T47, and PF86) - Self-extracting design for easy servicing - Compatible with widely-available SRAM-type 3-bolt direct mount chainrings - Compatible with 4iiii Precision and Podiiiium single-sided power meters - 625 grams (172.5mm)
