Litespeed Ultimate Shimano 105 Di2 12 spd

2026 RoadRace Manufacturer page

Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 12 34–50t / 11–34t
Gear range: 455%
Frame: Titanium
Brakes: Hydraulic disc

Not published by the manufacturer

Sizes and geometry

Components

14 of 17 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.

Suspension

1 part

Fork
- Litespeed

Drivetrain

7 parts

Bottom bracket
- Praxis
Cassette

105 R7100 11-34 12 Spd Not identified
Chain
- Shimano SLX CN-M7100
CN-M7100
Crankset
- Shimano 105 FC-R7100 12 speeds
FC-R7100
Front derailleur
- Shimano 105 FD-R7150 2 speeds
FD-R7150
Rear derailleur
- Shimano 105 RD-R7150 12 speeds
RD-R7150
Shifters
- Shimano 105 ST-R7170
ST-R7170

Brakes

2 parts

Wheels and tires

2 parts

Rims

Select Option in Builder Not identified
Tires
- Continental

Cockpit and contact points

5 parts

Handlebar
- FSA Gossamer
Headset

Select Option in Builder Not identified
Saddle
- Fizik Vento Argo R5
Seatpost
- FSA GOSSAMER
Stem
- FSA GOSSAMER

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Titanium
Fork material: Carbon

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 34
Largest chainring: 50
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 29.0 in
Highest gear: 131.8 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: Aluminum
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

29.0 gear inches

This value is within the central range for this class.

Cohort: Road / Race Model year: 2026
Sample: 719 bicycles with this information
Coverage: 78.6% of the class

Highest gear

131.8 gear inches

This value is within the central range for this class.

Cohort: Road / Race Model year: 2026
Sample: 719 bicycles with this information
Coverage: 78.6% of the class

Shifting

Electronic

631 of 912 bicycles with this information use electronic shifting.

Cohort: Road / Race Model year: 2026
Sample: 912 bicycles with this information
Coverage: 99.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.1 km/h
Highest gear: 50.5 km/h

Total gear range 455%

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: 29.0–131.8 gear inches
Class reference (p10–p90): 27.4–139.2 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Race Model year: 2026
Lowest gear: 719 bicycles with this information, 78.6% of the class
Highest gear: 719 bicycles with this information, 78.6% 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 2026 builds

Differences across 2026 builds
Specification	This bicycle Litespeed Ultimate Shimano 105 Di2 12 spd	Litespeed Ultimate FI Shimano 105 Di2	Litespeed Ultimate FI Shimano Dura-Ace Di2	Litespeed Ultimate FI Shimano Ultegra Di2	Litespeed Ultimate FI SRAM Force AXS E1	Litespeed Ultimate FI SRAM Rival AXS E1
Drivetrain
Smallest chainring	34	34	34	34	35	33
Largest chainring	50	50	50	50	48	46
Smallest sprocket	11	11	11	11	10	10
Largest sprocket	34	34	30	30	36	36
Lowest gear	29.0 in	29.0 in	32.9 in	32.9 in	28.2 in	26.6 in
Highest gear	131.8 in	131.8 in	131.8 in	131.8 in	139.2 in	133.4 in
Brakes
Brake type	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Mechanical disc	Mechanical disc