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Shimano 105 chainwheel-12 speed FC-R7100

Shimano 105 chainwheel-12 speed FC-R7100

¥901.00 CNY

¥901.00 CNY

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The newly designed crank arms offer an optimized balance between lightweight and efficiency. The crank, formed with hollow aluminum technology, is anodized with a beautiful gloss black anodized finish, giving it a luxurious look. The resin ribs on the back of the chainrings are SHIMANO 105's unique structural design that achieves both thorough weight reduction and crisp shifting performance.

FEATURES:

Optimal balance of stiffness, strength, weight and rotational performance
HOLLOWTECH II structure cuts weight yet maintains strength for better power transfer
Crank arm length: 160, 165, 170, 172.5, 175 mm
Gear combination: 50-34T, 52-36T

Q-factor: 148 mm

PRODUCT SPECIFICATIONS
MODEL NO FC-R7100
SERIES SHIMANO 105 R7100 Di2 Series
Color Black
Rear speeds 12
Compatible chain HG 12-speed
Chain line (mm) 44.5
P.C.D. (mm) 110
Spider/Gear arms 4
Chainring combination 50-34T 52-36T
Q-factor (mm) 148
Crank arm length (mm)|160 ✔
Crank arm length (mm)|165 ✔
Crank arm length (mm)|170 ✔
Crank arm length (mm)|172.5 ✔
Crank arm length (mm)|175 ✔
Optional chain guard|Without chain/bash guard ✔
HOLLOWTECH II ✔
HOLLOWTECH crank arm ✔
Compatible bottom bracket type|Outboard ✔
Recommended bottom bracket|Threaded (normal) SM-BBR60
Recommended bottom bracket|Press-fit SM-BB72-41B
Threaded bottom bracket shell width (mm)|68 ✔
Threaded bottom bracket shell width (mm)|70 ✔
Crank fixing screw included ✔

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The crank, formed with hollow aluminum technology, is anodized with a beautiful gloss black anodized finish, giving it a luxurious look. The resin ribs on the back of the chainrings are SHIMANO 105's unique structural design that achieves both thorough weight reduction and crisp shifting performance.\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eFEATURES:\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003eOptimal balance of stiffness, strength, weight and rotational performance\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eHOLLOWTECH II structure cuts weight yet maintains strength for better power transfer\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCrank arm length: 160, 165, 170, 172.5, 175 mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eGear combination: 50-34T, 52-36T\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003eQ-factor: 148 mm\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003ePRODUCT SPECIFICATIONS\u003cbr\u003eMODEL NO FC-R7100\u003cbr\u003eSERIES SHIMANO 105 R7100 Di2 Series\u003cbr\u003eColor Black\u003cbr\u003eRear speeds 12\u003cbr\u003eCompatible chain HG 12-speed\u003cbr\u003eChain line (mm) 44.5\u003cbr\u003eP.C.D. (mm) 110\u003cbr\u003eSpider\/Gear arms 4\u003cbr\u003eChainring combination 50-34T 52-36T\u003cbr\u003eQ-factor (mm) 148\u003cbr\u003eCrank arm length (mm)|160 ✔\u003cbr\u003eCrank arm length (mm)|165 ✔\u003cbr\u003eCrank arm length (mm)|170 ✔\u003cbr\u003eCrank arm length (mm)|172.5 ✔\u003cbr\u003eCrank arm length (mm)|175 ✔\u003cbr\u003eOptional chain guard|Without chain\/bash guard ✔\u003cbr\u003eHOLLOWTECH II ✔\u003cbr\u003eHOLLOWTECH crank arm ✔\u003cbr\u003eCompatible bottom bracket type|Outboard ✔\u003cbr\u003eRecommended bottom bracket|Threaded (normal) SM-BBR60\u003cbr\u003eRecommended bottom bracket|Press-fit SM-BB72-41B\u003cbr\u003eThreaded bottom bracket shell width (mm)|68 ✔\u003cbr\u003eThreaded bottom bracket shell width (mm)|70 ✔\u003cbr\u003eCrank fixing screw included ✔\u003c\/div\u003e"}