Steel with Narrow-Wide type teeth, 104 BCD

4-arm 104-BCD spider bolt-on fitting.

These hard-wearing E-bike suitable chainrings are designed for hi-performance use.

Especially well-suited for off-road Mountain biking, where the Narrow Wide tooth profile helps prevent the chain from jumping off.

Wippermann utilises the processes established in their industrial sector for hardening the Connex chainrings, as well as the particularly high-performance cathodic dip coating. Specially developed for the high loads caused by e-bike drives, they are compatible for use with all common drive systems from Bosch, Yamaha, Brose, Bafang and many more. Of course, those bikes powered by human muscles can also benefit from using steel Connex super-hard wearing, high-performance chainrings.

Technical details

• Material: hardened Steel with Black KTL-coating
• Tooth profile: Narrow Wide alternating, 1 1/128″
• Spider fitting: Bolt circle diameter (BCD): 4×104 mm
• Suitable for use on Bosch, Yamaha, Brose, Bafang and other systems
• Sizes: 34, 36, 38 and 42 teeth
• Suitable for: 1/2″ x 1 1/128″ hi-performance MTB use