Campagnolo Super Record Ultra Torque crank ST 53/39 with steel shaft
More power and smooth running is hardly possible!
The Super Record crank is an extraordinary concentrate of technology and performance. and offers high stiffness, extremely light weight, fast and precise shifting
Is mounted the crank via a two-part steel shaft, which is connected centrally via a Hirth toothing. This design offers several advantages over conventional systems. So has the big wave high rigidity and allows the bearings outside the frame to position a larger, yet to achieve stiffer support width. At the same time the crank arms can be kept flat in order to provide the ankles and feet a bit more space and a total of lower Q factor.
XPSS - Extreme Performance Shifting System
Exclusive design of the zones for upshift and downshift of the chain. The special profile of the teeth and the areas to upshift and downshift of the chain allow precise and rapid shifting possible in all conditions.
This is an ideal combination of ceramic balls with Cronite special bearing steel. CULT crank 9 times smoother than standard bearings made of steel. The balls and bearings are lubricated with only a layer of oil rather than grease. This oxidation is prevented, and the performance is permanent.
Crank arms: Carbon
Crank: 170 mm | 172.5 mm | 175 mm
bolt circle diameter: 135 mm
Weight: about 636g
Note: The crank comes WITHOUT bearing shells. Matching bearing cups can be purchased separately in our shop!