Colnago V4Rs Shimano Ultegra Di2

Name: Colnago V4Rs Shimano Ultegra Di2
Brand: Colnago

2025 RoadRace Manufacturer page

Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 12 36–52t / 11–30t
Gear range: 394%
Brakes: Hydraulic disc

Sizes

Size guide

42cm
45.5cm
48.5cm
51cm
53cm
55cm
57cm

The manufacturer did not publish rider heights for these sizes.

Components

14 of 18 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Drivetrain

7 parts

Bottom bracket
- Shimano
Cassette

Option 1 (Default), 11-30T, Option 2, 11-34T, Option 1 (Default), 11-30T, Option 2, 11-34T Not identified
Chain
- Shimano Deore XT CN-M8100
CN-M8100
Crankset

Option 1 (Default), 52-36T, Option 2, 50-34T, Option 1 (Default), 52-36T, Option 2, 50-34T Not identified
Front derailleur
- Shimano Ultegra FD-R8150 2 speeds
FD-R8150
Rear derailleur
- Shimano Ultegra RD-R8150 12 speeds
RD-R8150
Shifters
- Shimano Ultegra ST-R8170
ST-R8170

Brakes

2 parts

Wheels and tires

4 parts

Cockpit and contact points

5 parts

Handlebar
- Colnago
Headset
- CeramicSpeed
Saddle
- Selle Italia NOVUS Boost Evo
Seatpost

Carbon seatpost, 0.15 offset, "D-Shape" section, Carbon seatpost, 0.15 offset, "D-Shape" section Not identified
Stem

CC01 integrated cockpit, CC01 integrated cockpit Not identified

Sizes and geometry

7 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 51cm

Table

Geometry diagram unavailable

The drawing needs wheelbase, stack and seat tube length, which the manufacturer did not publish. Available facts remain in the table.

Size Reach Stack

Complete manufacturer geometry table 7 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	370	375	383	388	395	403	410
Stackmm	510	522	539	—	575	593	612
Top tube lengthmm	504	517	535	—	567	586	599
Head tube lengthmm	103	114	130	148	164	181	200
Head tube angle	70.6°	71°	71.5°	71.8°	72.5°	72.9°	73.1°
Seat tube angle	75.5°	75°	74.5°	74°	73.5°	73°	73°
Chainstay lengthmm	408	408	408	408	408	408	408
Bottom bracket dropmm	72	72	72	72	72	72	72
Bottom bracket heightmm	264	264	264	264	264	264	264
Stack/reach ratio	1.38	1.39	1.41	—	1.46	1.47	1.49
Suspension and parts
Crank lengthmm	170	170	170	172.5	172.5	175	175
Handlebar widthmm	390	390	390	410	410	410	430
Stem lengthmm	90	100	110	110	120	120	130

Not published by the manufacturer: Seat tube length, Wheelbase, Front center, Standover height, Fork rake, Trail, Front travel, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Fork material: Carbon
Weight limit: 120 kg

264.6 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 36
Largest chainring: 52
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 30
Lowest gear: 34.8 in
Highest gear: 137.1 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Electronic

Additional specifications

Bottom bracket standard: T47
Tire width: 28c
Wheel material: Carbon
Wheel size: 700c

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

34.8 gear inches

This value is above the central range for this class.

Cohort: Road / Race Model year: 2025
Sample: 762 bicycles with this information
Coverage: 78.1% of the class

Highest gear

137.1 gear inches

This value is within the central range for this class.

Cohort: Road / Race Model year: 2025
Sample: 762 bicycles with this information
Coverage: 78.1% of the class

Shifting

Electronic

643 of 969 bicycles with this information use electronic shifting.

Cohort: Road / Race Model year: 2025
Sample: 969 bicycles with this information
Coverage: 99.3% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 13.3 km/h
Highest gear: 52.5 km/h

Total gear range 394%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 34.8–137.1 gear inches
Class reference (p10–p90): 28.2–139.2 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Race Model year: 2025
Lowest gear: 762 bicycles with this information, 78.1% of the class
Highest gear: 762 bicycles with this information, 78.1% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2025 builds

Differences across 2025 builds
Specification	This bicycle Colnago V4Rs Shimano Ultegra Di2	Colnago V4Rs WRL Campagnolo Super Record	Colnago V4Rs Shimano Dura-Ace Di2	Colnago V4Rs SRAM Force eTap AXS	Colnago V4Rs SRAM Red eTap AXS
Drivetrain
Smallest chainring	36	32	36	35	35
Largest chainring	52	48	52	48	48
Smallest sprocket	11	10	11	10	10
Largest sprocket	30	27	30	28	28
Lowest gear	34.8 in	34.4 in	34.8 in	36.3 in	36.3 in
Highest gear	137.1 in	139.2 in	137.1 in	139.2 in	139.2 in
Brakes
Brake type	Hydraulic disc	Mechanical disc	Hydraulic disc	Hydraulic disc	Hydraulic disc
Other specifications
Wheel material	Carbon	Aluminum	Carbon	Carbon	Carbon