Diamant 140 (Stepover)

Name: Diamant 140 (Stepover)
Brand: Diamant

2026 MountainCross-country Manufacturer page

Diamant 140 (Stepover), color Mokkalatte Duotone

Price: Not published

Prices shown first for United States
Europe: €1,899 Last known price
Fork travel: 75 mm
Wheels: 29″
Drivetrain: 1 × 12 42t / 10–51t
Gear range: 510%
Weight: 14.7 kg 32.4 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

54cm 174–187
58cm 185–198
62cm 196–203

Components

18 of 20 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

Alpha Smooth Aluminium, internal cable routing, post-mount disc, replaceable dropouts, belt split, ringlock mount Not identified

Suspension

1 part

Fork
- SR Suntour NCX32

Drivetrain

4 parts

Cassette
- Shimano SLX CS-M7100-12 12 speeds 10–51t
CS-M7100-12
Chain
- Shimano SLX CN-M7100
CN-M7100
Crankset
- Prowheel 42t
Rear derailleur
- Shimano GRX RD-RX822 12 speeds
RD-RX822

Brakes

2 parts

Wheels and tires

5 parts

Front hub
- Shimano HB-QC300
HB-QC300
Rear hub
- Shimano FH-QC500-MS 12 speeds
FH-QC500-MS
Rims
- Bontrager
Spokes

14 g stainless steel, black Not identified
Tires
- Schwalbe

Cockpit and contact points

6 parts

Other components

1 part

Racks
- Racktime

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 58cm

Table

Reach 407mm

Stack 626mm

Wheelbase 1158mm

Head angle 69.0°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	393	407	420
Stackmm	598	626	626
Top tube lengthmm	597	620	633
Seat tube lengthmm	540	580	620
Head tube lengthmm	170	200	200
Head tube angle	69°	69°	69°
Seat tube angle	73°	73°	73°
Chainstay lengthmm	468	468	468
Wheelbasemm	1134	1158	1171
Front centermm	675	699	712
Bottom bracket dropmm	70	70	70
Bottom bracket heightmm	291	291	291
Standover heightmm	824	863	874
Fork rakemm	71	70	70
Trailmm	90	90	90
Stack/reach ratio	1.52	1.54	1.49

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

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Bicycle weight: 14.7 kg

32.4 lb
Weight limit: 136 kg

299.8 lb

Suspension

Suspension configuration: Hardtail
Front travel: 75 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 42
Largest chainring: 42
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 23.9 in
Highest gear: 121.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Coil
Tire width: 2.4″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

2 measures

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

Front travel

75 mm

This value is below the central range for this class.

Cohort: Mountain / Cross-country Model year: 2026
Sample: 1,209 bicycles with this information
Coverage: 90.0% of the class

Shifting

Mechanical

156 of 1,318 bicycles with this information use electronic shifting.

Cohort: Mountain / Cross-country Model year: 2026
Sample: 1,318 bicycles with this information
Coverage: 98.2% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 9.1 km/h
Highest gear: 46.7 km/h

Total gear range 510%

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.