Pinnacle Arkose 4

2025 RoadGravel Manufacturer page

Price: Not published

Prices shown first for United States
United Kingdom: £2,150 Last known price
Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 11 40t / 11–42t
Gear range: 382%
Frame: Aluminum
Brakes: Hydraulic disc

Not published by the manufacturer

Sizes and geometry

Components

7 of 11 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.

Frame and fork

1 part

Frame

6061 heat treated aluminium Not identified

Suspension

1 part

Fork

Full carbon fork with tapered steerer. Dynamo routing and mudguard mounts Not identified

Drivetrain

5 parts

Cassette

11-42T 11 speed cassette Not identified
Chain
- KMC X11 11 speeds
Crankset
- Shimano GRX FC-RX600 40t
FC-RX600BB-R60
Rear derailleur
- Shimano GRX RD-RX812 11 speeds
RD-RX812
Shifters
- Shimano GRX ST-RX600
ST-RX600

Brakes

1 part

Brakes
- Shimano GRX BR-RX400
BR-RX400

Wheels and tires

2 parts

Rims
- WTB
Tires
- WTB

Cockpit and contact points

1 part

Pedals

Included Not identified

Specifications

Frame and fork

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

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 40
Largest chainring: 40
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 42
Lowest gear: 27.6 in
Highest gear: 105.5 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Shifting: Mechanical

Additional specifications

Tire clearance: Maximum tire width: 47c; Additional specification: Wheel kind: 700
Tire width: 45c
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

27.6 gear inches

This value is above the central range for this class.

Cohort: Road / Gravel Model year: 2025
Sample: 1,536 bicycles with this information
Coverage: 76.6% of the class

Highest gear

105.5 gear inches

This value is below the central range for this class.

Cohort: Road / Gravel Model year: 2025
Sample: 1,536 bicycles with this information
Coverage: 76.6% of the class

Shifting

Mechanical

688 of 1,999 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2025
Sample: 1,999 bicycles with this information
Coverage: 99.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.6 km/h
Highest gear: 40.4 km/h

Total gear range 382%

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: 27.6–105.5 gear inches
Class reference (p10–p90): 22.8–126.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2025
Lowest gear: 1536 bicycles with this information, 76.6% of the class
Highest gear: 1536 bicycles with this information, 76.6% 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 2025 builds
Specification	This bicycle Pinnacle Arkose 4	Pinnacle Arkose 1	Pinnacle Arkose 2	Pinnacle Arkose 3
Drivetrain
Front chainrings	1	2	2	2
Smallest chainring	40	32	30	30
Largest chainring	40	48	46	46
Rear sprockets	11	8	9	10
Largest sprocket	42	34	34	36
Lowest gear	27.6 in	27.3 in	25.6 in	24.2 in
Highest gear	105.5 in	126.6 in	121.3 in	121.3 in
Brakes
Brake type	Hydraulic disc	Mechanical disc	Mechanical disc	Hydraulic disc
Cockpit
Seatpost	Not informed	Rigid seatpost	Rigid seatpost	Not informed
Other specifications
Tire clearance	Maximum tire width: 47c; Additional specification: Wheel kind: 700	Not informed	Maximum tire width: 47c; Additional specification: Wheel kind: 700	Maximum tire width: 47c; Additional specification: Wheel kind: 700
Tire width	45c	42c	45c	45c