Shimano 105 FC-R7100 Inner Chainring | 12-Speed | 52-36T | 110 BCD 4-Bolt Asymmetric

Shimano 105 FC-R7100 Inner Chainring | 52-36T Crankset | 12-Speed | 110 BCD 4-Bolt Asymmetric

The Shimano 105 FC-R7100 Inner Chainring is a genuine replacement ring for the Shimano 105 FC-R7100 2x12-speed crankset in the 52-36T combination. It’s also compatible with the Ultegra FC-R8100 crankset. If your inner ring is worn, has bent or missing teeth, or you want to refresh a hard working drivetrain, fitting a matched Shimano ring is a simple way to bring back smooth, accurate front shifting.

Fast, Smooth Shifting from a 110mm BCD

Shimano’s chainrings use a 110mm bolt circle diameter (BCD) with a 4 bolt asymmetric pattern, which keeps the ring positioned correctly and helps deliver fast, smooth shifting between the inner and outer rings. This is the inner ring for the 52-36T crankset, so it’s the one that does the work on climbs and in your easier gears.

Anodised Aluminium Construction

The inner chainring is made from anodised aluminium, giving a durable, wear resistant surface for everyday riding and training. The outer rings in this range use a Hollowglide construction for weight optimisation while keeping excellent stiffness, so if you need the outer ring too, our team can help you match the pair.

Why Replace a Worn Chainring

Chainrings wear with use, and worn teeth can cause skipping, poor shifting, and faster chain wear. Replacing the ring, and checking your chain and cassette at the same time, is often a simple, cost effective way to restore performance without buying a new crankset.

Key Features

• Genuine Shimano 105 FC-R7100 inner chainring, 52-36T crankset
• Also compatible with the Ultegra FC-R8100 crankset
• 12-speed compatible, for 2x12 drivetrains
• 110 BCD, 4 bolt asymmetric Shimano pattern
• Anodised aluminium construction
• Designed for fast, smooth front shifting

Please note: Please check that you have a 52-36T crankset, and that your crankset model matches the compatibility above, before ordering. If you’re unsure, contact our team and we’ll help you check the fit.