12SR Bicycle Chain

A performance alternative to the Flattop chains. Precision-engineered for modern 12-speed SRAM Flattop drivetrains, the Connex 12SR delivers razor-sharp shifting, maximum durability – with zero compromise. Included: the legendary Connex Link – tool-free, in sleek black, and ready to ride.

Made in Germany using long-lasting, heat-treated steel with a corrosion-resistant high quality Nickel silver finish.

Supplied with the exclusive, re-usable, tool-free Connex QR joining Black link.

Compatible with SRAM Flattop bicycle 12-Speed transmission gear systems only.

• Link count: 126
• Weight: 285 g
• Colour: Nickel Silver

Innovative bike-engineering from Germany since 1893

Those who expect the highest performance will find no alternative to Connex chains:

The optimised geometry of the plates enables extremely rapid and virtually silent gear

changes.

Highly developed Peripheral chamfering of the outer plate ensures optimum gear-changing performance. Innovative radial riveting of the pins, combined with a special pin coating, guarantees top performance and long wear, even under the high forces of cross gearing.

SPEED WING

Optimised plate design for rapid and silent gear changes.

DIAMOND SHAPE

Innovative chamfering of the outer plate for quick and precise gear-changing and optimal chain guide

POWER PIN

Innovative radial riveting and pins with an extremely wear-resistant surface for highest resistance to wear and maximum strength

Technical details

• Measurement: 1/2" x 1 1/128"
• Pin length: 5.40 mm
• Pressure: 2000 N
• Pin hardening: XHB