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 switching
The crank via a two-part steel shaft, which is connected centrally via a Hirth toothing is stored. This design offers several advantages over conventional systems. So the big wave has a high stiffness 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 to provide a little more space and a total of lower Q factor the ankles and feet.
XPSS - Extreme Performance Shifting System
Exclusive design of the zones to upshift and downshift of the chain. The special profiles of the teeth as well as 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 with the crank 9 times smoother than the standard bearings of steel. The bullets and bearings are lubricated exclusively with a layer of oil instead of fat. This oxidation is prevented, and the performance is permanent.
Crank: 170 mm | 172.5 mm | 175 mm
bolt circle diameter : 135 mm
Note: The crank comes WITHOUT bearings. Suitable shells can be purchased separately in our shop!