Mason Bokeh GRX

Name: Mason Bokeh GRX
Brand: Mason

2023 RoadGravel Manufacturer page

Price: Not published

Prices shown first for United States
United Kingdom: £3,205 Last known price
Suspension: Rigid
Wheels: 650b
Drivetrain: 2 × 11 31–48t / 11–34t
Gear range: 479%
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

48cm
50cm
52cm
54cm
56cm
58cm
60cm
62cm

The manufacturer did not publish rider heights for these sizes.

Components

11 of 15 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

Dedacciai custom-shaped performance Aluminium. Not identified

Suspension

1 part

Fork

Mason Parallax2 full carbon Thru-Axle fork. Not identified

Drivetrain

5 parts

Cassette
- Shimano Deore XT CS-M8000 11 speeds
CS-M8000
Chain
- Shimano CN-HG701-11
CN-HG701-11
Crankset
- Shimano GRX FC-RX810 11 speeds 48/31t
FC-RX810GRX-810
Rear derailleur
- Shimano GRX RD-RX810 11 speeds
RD-RX810GRX-810
Shifters
- Shimano GRX ST-RX810
ST-RX810GRX-810

Brakes

1 part

Brakes

Hydraulic Disc Not identified

Wheels and tires

2 parts

Cockpit and contact points

5 parts

Handlebar
- Deda
Headset
- Deda
Saddle
- Fizik Terra Argo X5
Seatpost

MASON Penta carbon, microadjust. Not identified
Stem
- Deda

Sizes and geometry

8 sizes Open in the geometry plotter

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

Size 54cm

Table

Reach 376mm

Stack 568mm

Wheelbase 1028mm

Head angle 71.0°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 650b wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 8 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	359.9	363.5	374	376.2	383.4	395.2	399.1	401.4
Stackmm	536.1	537.9	554	568.1	579.5	587.9	607	630.7
Top tube lengthmm	515.9	519.9	535.9	551	561.4	580.8	590.7	600.5
Seat tube lengthmm	480	500	520	540	560	580	600	620
Head tube lengthmm	100	115	130	145	155	165	185	210
Head tube angle	69.5°	70°	70.5°	71°	71.5°	72°	72°	72°
Seat tube angle	74°	74°	74°	73°	73°	72.5°	72.5°	72.5°
Chainstay lengthmm	435	435	435	435	435	435	435	435
Wheelbasemm	1013	1013.7	1021.8	1028.4	1034.4	1045.4	1055.4	1065.5
Front centermm	590	590	602	604	610	620	630	640
Bottom bracket dropmm	77	75	75	73	73	70	70	70
Standover heightmm	741	764.1	781.8	799.4	814.8	831	850	871.7
Fork rakemm	50	50	47	50	50	50	50	50
Trailmm	70	67	67	61	58	55	55	55
Stack/reach ratio	1.49	1.48	1.48	1.51	1.51	1.49	1.52	1.57
Suspension and parts
Crank lengthmm	165	170	170	172.5	172.5	175	175	175
Stem lengthmm	70	80	90	100	110	110	120	120

Not published by the manufacturer: Bottom bracket height, Front travel, Rear travel, Handlebar width, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Fork material: Carbon
Frame weight: 1.73 kg

3.8 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 31
Largest chainring: 48
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 25.1 in
Highest gear: 120.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Wheel material: Aluminum
Wheel size: 650b

Technical analysis

3 measures

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

Lowest gear

25.1 gear inches

This value is below the central range for this class.

Cohort: Road / Gravel Model year: 2023
Sample: 1,655 bicycles with this information
Coverage: 79.1% of the class

Highest gear

120.0 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2023
Sample: 1,655 bicycles with this information
Coverage: 79.1% of the class

Shifting

Mechanical

688 of 2,087 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2023
Sample: 2,087 bicycles with this information
Coverage: 99.8% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 9.6 km/h
Highest gear: 46.0 km/h

Total gear range 479%

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: 25.1–120.0 gear inches
Class reference (p10–p90): 23.2–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2023
Lowest gear: 1655 bicycles with this information, 79.1% of the class
Highest gear: 1655 bicycles with this information, 79.1% 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 2023 builds
Specification	This bicycle Mason Bokeh GRX	Mason Bokeh 105	Mason Bokeh 3	Mason Bokeh 3 Force XPLR	Mason Bokeh 3 GRX	Mason Bokeh 3 GRX 810 11 speed
Drivetrain
Front chainrings	2	2	1	1	2	2
Smallest chainring	31	34	38	42	31	31
Largest chainring	48	50	38	42	48	48
Rear sprockets	11	11	13	12	11	11
Smallest sprocket	11	11	9	10	11	11
Largest sprocket	34	32	42	44	34	34
Lowest gear	25.1 in	29.2 in	24.9 in	26.3 in	25.1 in	25.1 in
Highest gear	120.0 in	125.0 in	116.1 in	115.5 in	120.0 in	120.0 in
Cockpit
Shifting	Mechanical	Mechanical	Mechanical	Electronic	Mechanical	Mechanical
Other specifications
Tire width	Not informed	35c	Not informed	Not informed	Not informed	Not informed
Tire clearance	Not informed	Not informed	Maximum tire width: 55c	Maximum tire width: 55c	Maximum tire width: 55c	Maximum tire width: 55c