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Clavicula sine exceptione — No rule without exception! THMs top-line, full-carbon crank with integrated carbon axle is engineered like no other. In development they focused on optimizing its geometrical and structural definition, based on a precise analysis of load paths. As a result, it is extraordinarily stiff in all planes, exactly what’s required for loss-free power transmission.
They are particularly proud of the patented connection between left-hand crank and axle — THM is the first to successfully productionize a carbon-to-carbon interface at the heart of the bicycle drive train. Aligning the fibers of the external and internal splines reduces wear to near zero and eliminates noise. And, of course, it’s lighter, 293 g with spider. Clavicula SE beats all of THMs own benchmarks and is the new reference in crank design.
It fits any frame with standard 68 mm BSA shell. Available for BB30, BB30A, Pressfit30, Shimano Pressfit, Italian threading, BB386 EVO, BBright-Pressfit. BBright Direct Fit (only Cervelo frame R5ca) and BB 386 (only AX Lightness frame ViAL EVO) also available.
Weight: about 302g (130mm) / 293g (110mm)
Q-Factor: 148 mm
Chainline: 43.5 mm
Chainrings: Incl. PraxisWorks chainrings
Inner width of the cranks: 118 mm
Available lengths: 170 / 172.5 / 175mm
Max. permissible total weight (rider + bicycle + luggage): 120kg