Shimano 105 12-Speed Chainring (NH)

The Shimano 105 12-speed chainring (NH) is an anodised aluminium front chainring for the Shimano 105 FC-R7100 12-speed double crankset. The 36- and 52-tooth chainrings correspond to the 52-36T configuration, one of the combinations specified for this series: use the 52-tooth chainring as the outer chainring and the 36-tooth chainring as the inner chainring.

Check your chain: the teeth are designed to work only with Hyperglide+ 12-speed chains, so check the chain before fitting the chainring. The BCD is 110 mm with 4 bolts. The stated weight is 36 g for the 36-tooth chainring and 177 g for the 52-tooth chainring, useful when considering the overall weight of your bike.

Founded in 1921 in Sakai, Japan, by Shozaburo Shimano, Shimano is still based in the same city today. For cyclists, it makes drivetrains, brakes, wheels, pedals and cycling shoes. Its history in bicycle components began with the production of freewheels in 1922.