CLOSE
01751 474220
Video Reviews About Us Workshop RideWrap Clubs News Dalby Forest Cycle Hub Contact Us  
Clear
60% Off

Shimano FC-R8100 Ultegra 12-speed double chainset, 50 / 34T 172.5 mm

£120.00  £299.99

46 / 36 teeth 165 mm
46 / 36 teeth 170 mm
46 / 36 teeth 172.5 mm
46 / 36 teeth 175 mm
50 / 34 teeth 160 mm
50 / 34 teeth 165 mm
50 / 34 teeth 172.5 mm
52 / 36 teeth 165 mm
52 / 36 teeth 170 mm
52 / 36 teeth 172.5 mm
1 In Stock Now - Please allow 3-5 working days for delivery.
1 Quantity Available In Limited Stock
Part Number:

FCR8100D04

GTIN:

4550170894085

  • 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)

Colours Grey
Sizes 46 / 36 teeth 165 mm, 46 / 36 teeth 170 mm, 46 / 36 teeth 172.5 mm, 46 / 36 teeth 175 mm, 50 / 34 teeth 160 mm, 50 / 34 teeth 165 mm, 50 / 34 teeth 172.5 mm, 52 / 36 teeth 165 mm, 52 / 36 teeth 170 mm, 52 / 36 teeth 172.5 mm
Brand Shimano
Model Year 2026
Barcodes 4550170852429, 4550170852450, 4550170852474, 4550170852498, 4550170893729, 4550170893743, 4550170893781, 4550170893934, 4550170893996, 4550170894009, 4550170894054, 4550170894085, 4550170894092, 4550170894108
SKUs / Part Numbers FCR8100A04, FCR8100A26, FCR8100A66, FCR8100C04, FCR8100C26, FCR8100C66, FCR8100D04, FCR8100D26, FCR8100D66, FCR8100E04, FCR8100E26, FCR8100E66, FCR8100M04, FCR8100M26

Please note: Manufacturers can sometimes change the specification of the products from time to time.

You May Also Like

FC-R8100 Ultegra 12-speed double chainset 46 / 36T 165 mm

Shimano FC-R8100 Ultegra 12-speed double chainset 46 / 36T 165 mm

From £120.00
Was £299.99

Force22 Crank Set GXP 1725 5339t GXP Cups NOT incl 11SPD 1725MM 5339T

Sram Force22 Crank Set GXP 1725 5339t GXP Cups NOT incl 11SPD 1725MM 5339T

£273.00

Force22 Crank Set GXP 170 5034 GXP Cups NOT incl 11SPD 170MM 5034T

Sram Force22 Crank Set GXP 170 5034 GXP Cups NOT incl 11SPD 170MM 5034T

£273.00

Force22 Crank Set GXP 1725 5034 GXP Cups NOT incl 11SPD 1725MM 5034T

Sram Force22 Crank Set GXP 1725 5034 GXP Cups NOT incl 11SPD 1725MM 5034T

£273.00

Force1 Crank Set GXP 1725mm w 42T XSYNC Chainring GXP Cups NOT Included 11SPD 1725MM 42T

Sram Force1 Crank Set GXP 1725mm w 42T XSYNC Chainring GXP Cups NOT Included 11SPD 1725MM 42T

£274.00

Force1 Crank Set GXP 175mm w 42T XSYNC Chainring GXP Cups NOT Included 11SPD 175MM 42T

Sram Force1 Crank Set GXP 175mm w 42T XSYNC Chainring GXP Cups NOT Included 11SPD 175MM 42T

£274.00

Crank Descendant Carbon Eagle DUB 12s 170 w DirectMount 32t XSYNC 2 Chainring DUB CupsBearings Not Included 170MM

Truvativ Crank Descendant Carbon Eagle DUB 12s 170 w DirectMount 32t XSYNC 2 Chainring DUB CupsBearings Not Included 170MM

£285.00

Crank Descendant Carbon Eagle Boost 148 DUB 12s 175w Direct Mount 32t XSYNC 2 Chainring DUB CupsBearings Not Included 175MM

Truvativ Crank Descendant Carbon Eagle Boost 148 DUB 12s 175w Direct Mount 32t XSYNC 2 Chainring DUB CupsBearings Not Included 175MM

£285.00

Crank Descendant Carbon Eagle Boost 148 DUB 12s 170w Direct Mount 32t XSYNC 2 Chainring DUB CupsBearings Not Included 170MM

Truvativ Crank Descendant Carbon Eagle Boost 148 DUB 12s 170w Direct Mount 32t XSYNC 2 Chainring DUB CupsBearings Not Included 170MM

£285.00

Rival D1 Quarq Road Power Meter DUB BB Not Included 170MM 4835T

Sram Rival D1 Quarq Road Power Meter DUB BB Not Included 170MM 4835T

£340.00

Rival 1X D1 Quarq Road Power Meter DUB Wide BB Not Included 175MM 40T

Sram Rival 1X D1 Quarq Road Power Meter DUB Wide BB Not Included 175MM 40T

£340.00

Crankset X0 Eagle Q174 55mm Chainline DUB MTB Wide 2Guards 32T TType BB BB Dub Spacers Are Not Included V2 165MM

Sram Crankset X0 Eagle Q174 55mm Chainline DUB MTB Wide 2Guards 32T TType BB BB Dub Spacers Are Not Included V2 165MM

£320.00