Campagnolo Super Record Wireless Ultra Torque 12-speed Crankset

The Campagnolo Super Record Wireless 12-speed crankset for maximum performance on the road

Campagnolo thoroughly revised the Super Record 2x12-speed crankset for the electronic Super Record Wireless road bike groupset. It comes with more generous gradations to allow for an even wider gear ratio in combination with the matching cassette. The Ultra-Torque system guarantees excellent stiffness values and power transmission. Thanks to hollow-formed carbon arms, titanium axle and optimised aluminium chainrings, the crankset also impresses with its low weight.

Specifications:

Application:

Road

Compatibility:

Campagnolo 2x12-speed

Chainring Mount:

121/88 mm bolt circle diameter, 4-arm asymmetrical

Technical Information:

Series:

Super Record Wireless

Crank Arm Material:

carbon (UD)

Chainring Material:

aluminium

Axle Material:

titanium

Gradation:

29-46 t, 32-48 t, 34-50 t

Crank Arm Length:

165.0 mm, 170.0 mm, 172.5 mm, 175.0 mm

Chainline:

45.8 mm

Q-Factor:

147.5 mm

Axle Diameter:

25 mm

Recommended Bottom Bracket:

Pro-Tech threaded bearing shells or Pro-Tech Pressfit bearing shells, T47 bearing shells

Recommended Chain:

Super Record

Features:

• 2x12-speed road bike crankset especially made for Super Record Wireless groupset
• very light: hollow-formed crank arms made of UD carbon, titanium axle and chainrings made of aluminium
• optimum stiffness and power transmission
• optimised gradations
• USB ceramic bearing
• high performance and smooth functioning
• symmetrical teeth on the inner chainring
• precise, smooth shifting even with skewed chains

Technology:

Ultra Torque
Low weight, rigidity and easy maintenance: Ultra Torque. Campagnolo has made sure that the two halves of the bottom bracket are inseparably connected to the respective crank arms. This new development has made it possible to considerably reduce the lateral protrusion from the frame, thus preventing the undesirable contact of the ankles with the crank arms during pedalling. Its assembly is extremely simple, a single oversize screw is used to firmly connect the two halves of the axle. Concerning effectiveness of transmission of momentum, this system can stand comparison with a one-piece axle.
In addition, despite the narrow side profile, it has been possible to position the bearings outside the bottom bracket shell, making the axle, which has been given a larger diameter, more rigid thanks to the increased support width. The extraordinary performance characteristics of the Ultra Torque have been achieved by a system that originated in engine construction in the area of couplings and rotary axes: the Hirth gearing. This is a coupling connection with self-centering and self-aligning spur gearing, which is arranged in the centre of the inner bearing axle where the ends of the axle halves firmly connected to the crank arms touch each other.

Manufacturer Numbers:

165.0 mm 29-45:

FC23-SR12695

165.0 mm 32-48:

FC23-SR12628

165.0 mm 34-50:

FC23-SR12640

170.0 mm 29-45:

FC23-SR12095

170.0 mm 32-48:

FC23-SR12028

170.0 mm 34-50:

FC23-SR12040

172.5 mm 29-45:

FC23-SR12295

172.5 mm 32-48:

FC23-SR12228

172.5 mm 34-50:

FC23-SR12240

175.0 mm 29-45:

FC23-SR12595

175.0 mm 32-48:

FC23-SR12528

175.0 mm 34-50:

FC23-SR12540

Contents:

• 1 x Campagnolo Super Record Wireless Ultra Torque 12-speed crankset (29-45, 32-48 or 34-50 tooth)
• 1 x right bearing (installed)
• 1 x left bearing (installed)