ByShimano
Ultegra R8100 Crankset (FC-R8100)
Shimano Ultegra HOLLOWTECH II 2x12-speed crankset with hollow-forged crank arms, 110mm asymmetric 4-arm spider, 148mm Q-factor.
$365MSRP
Drivetrain · cranksets
Image pending
SKU FC-R8100Typecranksets
Disciplineroad
Speeds12
Variants1010 sizes or options
Weight700 gManufacturer claimed
01 / About
The Ultegra R8100 Crankset (FC-R8100).
Shimano's take on drivetrain.
Shimano Ultegra HOLLOWTECH II 2x12-speed crankset with hollow-forged crank arms, 110mm asymmetric 4-arm spider, 148mm Q-factor.
02 / Specifications
Ultegra R8100 Crankset (FC-R8100) spec sheet.
Everything Shimano publishes for the Ultegra R8100 Crankset (FC-R8100).
01Overview
5 fields
Type
cranksets
Discipline
road
Brand
ShimanoExternal
SKU
FC-R8100Shimano part number
Product URL
02Drivetrain
7 fields
Speeds
12
Actuation
electronic
Subcategory
—
Power meter
—
Power meter type
—
Model line
Ultegra
Generation
R8100
03Pricing & availability
3 fields
Price
$365USD · MSRP
Availability
—
Weight
700 gManufacturer claimed
04Additional specs
6 fields
Spider Bcd
110mm asymmetric
Q Factor Mm
148
Chainline Mm
44.5
Bb Interface
HOLLOWTECH II
Chainring Options
50-34T, 52-36T
Crank Lengths Mm
160, 165, 170, 172.5, 175
03 / Variants
10 variants available.
Sizes, colors, and configurations published by the brand.
Total variants10Indexed in GearWise
Crank length (mm)160–175 mm5 distinct values
| # | Size | Chainring sizes | Crank length (mm) |
|---|---|---|---|
| 01 | 50-34T / 160mm | 50-34T | 160mm |
| 02 | 50-34T / 165mm | 50-34T | 165mm |
| 03 | 50-34T / 170mm | 50-34T | 170mm |
| 04 | 50-34T / 172.5mm | 50-34T | 172.5mm |
| 05 | 50-34T / 175mm | 50-34T | 175mm |
| 06 | 52-36T / 160mm | 52-36T | 160mm |
| 07 | 52-36T / 165mm | 52-36T | 165mm |
| 08 | 52-36T / 170mm | 52-36T | 170mm |
| 09 | 52-36T / 172.5mm | 52-36T | 172.5mm |
| 10 | 52-36T / 175mm | 52-36T | 175mm |