Shimano Ultegra FC-R8100 12 Speed Double Chainset - Grey - 50/34T - 165mm

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Manufacturer : Shimano
SJS Cycles part number : 56765
Manufacturer part number : FCR8100AX04
Details
- The HollowTech II 12-speed Ultegra chainset offers an ideal balance of light weight and stiffness, making it the perfect choice for both enthusiast and competitive riders
- HollowGlide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex and hugely improves shift performance, even under high load
- The chainring teeth have been developed to work in conjunction with 12-speed HG chains for increased contact to provide greater efficiency and improved power transfer
- Industry leading HollowTech II cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weight
- Wide gear pitch spacing increases clearance between chain and leading teeth to provide compatibility to frames with O.L.D. 135 / 142 mm
- A wide range of chainring options and crank arm lengths are available to meet the needs of all riders and racing disciplines
- HollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency
- HollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability(sold separately)
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Specification
ColourGrey
GroupsetUltegra
Length165
PCD110 4-Arm
Ratio50-34
SeriesR8100
Speed12
TypeDouble
Associated Components
Part Number
Description
Availability
 
Y0NG98030
Left hand crank arm unit 160 mm
Available to order
Y0NG98040
Left hand crank arm unit 165 mm
Available to order
Y0NG98050
Left hand crank arm unit 170 mm
Available to order
Y0NG98060
Left hand crank arm unit 172.5 mm
Available to order
Y0NG98070
Left hand crank arm unit 175 mm
Available to order
Y1P598010
Left hand cup (B.C.1.37" x 24T) english thread (SM-BBR60)
Discontinued
Y1P598020
Left hand cup (M36 x 24T) italian thread (SM-BBR60)
Discontinued
Y1G398150
Inner cover & O-ring
Available to order
Y1P598030
Right hand cup (B.C.1.37" x 24T) english thread (SM-BBR60)
Discontinued
Y1P598040
Right hand cup (M36 x 24T) italian thread (SM-BBR60)
Discontinued
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Questions & Answers
If you have any questions ask here or phone 01278 441500 (+44 1278 441500).