Devinci Milano Stepthru 21S Altus

2025 UrbanGeneral urban Manufacturer page

Devinci Milano Stepthru 21S Altus, color Dream Orange Gloss

Suspension: Rigid
Wheels: 700c
Drivetrain: 3 × 7 28–48t / 14–34t
Gear range: 416%
Frame: Aluminum
Brakes: Rim brake

Rider height by size (cm)

Size guide

SM 152–171
MD 169–180

Components

18 of 21 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

Aluminum Optimum G02 Not identified

Suspension

1 part

Fork
- Devinci

Drivetrain

6 parts

Cassette
- SunRace 14–34t
Chain
- KMC
Crankset

Alloy | 48/38/28T Not identified
Front derailleur
- Shimano Tourney FD-TY710
FD-TY710
Rear derailleur
- Shimano Altus RD-M310-SMART 8 speeds
RD-M310-SMART
Shifters
- Shimano ST-EF500
ST-EF500

Brakes

1 part

Brakes
- Tektro 855AL

Wheels and tires

5 parts

Front hub
- Formula
Rear hub
- Formula
Rims
- Ritchey Comp
Spokes

Stainless 14G Not identified
Tires
- Kenda

Cockpit and contact points

7 parts

Sizes and geometry

2 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size SM

Table

Reach 383mm

Stack 563mm

Wheelbase 1040mm

Head angle 70.0°

Seat angle 73.0°

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. Bottom bracket drop is derived from the published bottom bracket height.

Size Reported by the manufacturer

Complete manufacturer geometry table 2 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	383	391
Stackmm	563	586
Top tube lengthmm	555	570
Seat tube lengthmm	400	450
Head tube lengthmm	140	165
Head tube angle	70°	70°
Seat tube angle	73°	73°
Chainstay lengthmm	435	435
Wheelbasemm	1040	1057
Bottom bracket heightmm	282	282
Standover heightmm	477	477
Stack/reach ratio	1.47	1.50

Not published by the manufacturer: Front center, Bottom bracket drop, Fork rake, Trail, 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
Fork material: Steel

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 3
Smallest chainring: 28
Largest chainring: 48
Rear sprockets: 7
Smallest sprocket: 14
Largest sprocket: 34
Lowest gear: 23.9 in
Highest gear: 99.4 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 35c
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

1 measure

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

Shifting

Mechanical

11 of 276 bicycles with this information use electronic shifting.

Cohort: Urban / General urban Model year: 2025
Sample: 276 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 9.1 km/h
Highest gear: 38.1 km/h

Total gear range 416%

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: 23.9–99.4 gear inches

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 Devinci Milano Stepthru 21S Altus	Devinci Milano 1 Altus Disc 21s	Devinci Milano 2 Disc Cues 10s	Devinci Milano 21S Altus	Devinci Milano Disc 27S Alivio	Devinci Milano Disc Stepthru Altus 8s
Frame
Fork material	Steel	Aluminum	Aluminum	Steel	Carbon	Carbon
Bicycle weight	Not informed	13.45 kg	13.01 kg	Not informed	Not informed	Not informed
Drivetrain
Front chainrings	3	1	1	3	3	3
Smallest chainring	28	42	42	28	26	26
Largest chainring	48	42	42	48	48	48
Rear sprockets	7	8	10	7	9	9
Smallest sprocket	14	12	11	14	11	11
Largest sprocket	34	42	39	34	36	36
Lowest gear	23.9 in	29.0 in	31.2 in	23.9 in	20.9 in	20.9 in
Highest gear	99.4 in	101.5 in	110.7 in	99.4 in	126.6 in	126.6 in
Brakes
Brake type	Rim brake	Mechanical disc	Hydraulic disc	Rim brake	Hydraulic disc	Hydraulic disc
Other specifications
Tire width	35c	35c	42c	35c	35c	35c