{"product_id":"shimano-fc-r7100-chainring","title":"FC-R7100 105 Chainring","description":"\u003cp\u003eThe Shimano 105 FC-R7100 chainrings are genuine replacements for worn or damaged rings on the 12-speed FC-R7100 crankset. Chainrings wear long before the crank arms do, and a tired outer ring is often behind sloppy front shifts and a chain that won't settle under load. Fitting a fresh ring brings back the crisp, predictable shifting the groupset was designed to deliver.\u003c\/p\u003e\n\u003cp\u003eThe tooth profiles are developed to work only with Shimano Hyperglide+ 12-speed chains. That gives closer contact between chain and ring, which means more efficient power transfer and smoother, quieter running.\u003c\/p\u003e\n\u003cp\u003eRings are sold individually and the inner and outer rings are matched pairings, so the 52T-NH outer runs with the 36T-NH inner (for a 52-36T setup), and the 50T-NK outer runs with the 34T inner (for 50-34T). Check which pairing your chainset uses before ordering, and it's worth replacing both rings at the same time if they've covered similar miles.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Shimano replacement chainring for 105 FC-R7100 12-speed cranksets\u003c\/li\u003e\n\u003cli\u003eTooth profile developed exclusively for Hyperglide+ 12-speed chains\u003c\/li\u003e\n\u003cli\u003eCloser chain contact for more efficient power transfer\u003c\/li\u003e\n\u003cli\u003e110 mm bolt circle diameter with a four-arm fitting\u003c\/li\u003e\n\u003cli\u003eSold individually, in matched pairings: 52T-NH with 36T-NH, 50T-NK with 34T\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProduct type: Chainring\u003c\/li\u003e\n\u003cli\u003eSpeed: 12 speed\u003c\/li\u003e\n\u003cli\u003eDiscipline: Road\u003c\/li\u003e\n\u003cli\u003eBolt circle diameter: 110 mm\u003c\/li\u003e\n\u003cli\u003eChainring fitting: 4 arms\u003c\/li\u003e\n\u003cli\u003eColour: Black\u003c\/li\u003e\n\u003cli\u003eCompatible chain: Shimano HG 12-speed (Hyperglide+)\u003c\/li\u003e\n\u003cli\u003eSizes listed: 36T-NH inner ring and 52T-NH outer ring (for 52-36T)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shimano","offers":[{"title":"Black \/ 36T-NH","offer_id":59064626020726,"sku":"Y0RS9802T","price":15.99,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 52T-NH","offer_id":59064075157878,"sku":"Y0RS98070","price":79.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/3065\/6691\/files\/fc-r7100-105-chainring-black-52t-nh-1263672848.jpg?v=1792507486","url":"https:\/\/www.biketart.com\/products\/shimano-fc-r7100-chainring","provider":"Biketart","version":"1.0","type":"link"}