Mason Aspect Hydro Dura-Ace Di2

Name: Mason Aspect Hydro Dura-Ace Di2
Brand: Mason

2023 RoadEndurance Manufacturer page

Mason Aspect Hydro Dura-Ace Di2, color Micro-Bead Blast 'Structural Surface Finish'

Price: Not published

Prices shown first for United States
United Kingdom: £8,175 Last known price
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 12 40–54t / 11–34t
Gear range: 417%
Weight: 8.2 kg 18.1 lb · Reference configuration not specified
Frame: Titanium
Brakes: Rim brake

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

MasonXDedacciai, custom formed & shaped, Titanium 3AL-2.5V frame Not identified

Suspension

1 part

Fork

Mason Aperture full carbon fork. UD Finish. Not identified

Drivetrain

5 parts

Brakes

1 part

Brakes

Rim Not identified

Wheels and tires

2 parts

Cockpit and contact points

5 parts

Handlebar
- Deda
Headset
- Deda
Saddle
- Fizik Tempo Argo R3
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 378mm

Stack 580mm

Wheelbase 1015mm

Head angle 71.5°

Seat angle 73.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c 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	369.7	377.5	377.8	378.2	385.5	390	392.2	405.5
Stackmm	532.1	552.8	567	579.7	594	605.4	613.4	620.1
Top tube lengthmm	519	532.6	536.8	551.2	560.7	581.2	585.9	601
Seat tube lengthmm	480	500	520	540	560	580	600	620
Head tube lengthmm	120	140	155	170	185	195	205	210
Head tube angle	71°	71.5°	71.5°	71.5°	71.5°	72°	72°	72.5°
Seat tube angle	74.5°	74.5°	74.5°	73.5°	73.5°	72.5°	72.5°	72.5°
Chainstay lengthmm	420	425	425	425	425	425	425	420
Wheelbasemm	989	1004.2	1009.2	1014.7	1024.7	1029.7	1035.2	1040.2
Front centermm	580	590	595	600	610	615	620	630
Bottom bracket dropmm	73	73	73	71.5	71.5	71.5	70	70
Bottom bracket heightmm	263	263	263	264	264	264	266	266
Standover heightmm	741.4	758.9	775.7	792.1	808.8	822.9	837.9	853.2
Fork rakemm	45	45	45	45	43	45	45	45
Trailmm	69	66	66	66	68	63	63	60
Stack/reach ratio	1.44	1.46	1.50	1.53	1.54	1.55	1.56	1.53
Suspension and parts
Crank lengthmm	170	170	170	172.5	172.5	175	175	175
Stem lengthmm	80	90	90	100	110	110	120	120

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

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Titanium
Fork material: Carbon
Bicycle weight: 8.2 kg

18.1 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 40
Largest chainring: 54
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 34.1 in
Highest gear: 142.4 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Electronic

Additional specifications

Tire width: 30c
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

34.1 gear inches

This value is above the central range for this class.

Cohort: Road / Endurance Model year: 2023
Sample: 635 bicycles with this information
Coverage: 70.4% of the class

Highest gear

142.4 gear inches

This value is above the central range for this class.

Cohort: Road / Endurance Model year: 2023
Sample: 635 bicycles with this information
Coverage: 70.4% of the class

Shifting

Electronic

449 of 901 bicycles with this information use electronic shifting.

Cohort: Road / Endurance Model year: 2023
Sample: 901 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 13.1 km/h
Highest gear: 54.5 km/h

Total gear range 417%

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: 34.1–142.4 gear inches
Class reference (p10–p90): 26.6–139.2 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Endurance Model year: 2023
Lowest gear: 635 bicycles with this information, 70.4% of the class
Highest gear: 635 bicycles with this information, 70.4% 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 Aspect Hydro Dura-Ace Di2	Mason Aspect Hydro Ultegra Di2
Drivetrain
Smallest chainring	40	34
Largest chainring	54	50
Largest sprocket	34	30
Lowest gear	34.1 in	32.9 in
Highest gear	142.4 in	131.8 in
Brakes
Brake type	Rim brake	Hydraulic disc