BMC 257 AL ONE ST

Name: BMC 257 AL ONE ST
Brand: BMC

2023 UrbanCommuter Manufacturer page

BMC 257 AL ONE ST, color Powder Steel Blue

Last known price: $2,099

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 1
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM Not informed
MD 169–185

Components

11 of 19 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

257 Premium Aluminium | Smoothwelded | Staggered Top Tube | Powder Coat Finish | Internal Cable Routing | Flat Mount Disc | Internal Gear Hub dropouts Not identified

Suspension

1 part

Fork

257 Premium Aluminium | Fender Mounts | Flat Mount Disc | 12 x 100mm Thru-Axle Not identified

Drivetrain

5 parts

Bottom bracket

BSA Threaded Bottom Bracket Not identified
Cassette
- Gates
Chain
- Gates
Crankset
- Gates
Shifters
- Shimano Alfine SL-S7000 8 speeds
SL-S7000

Brakes

2 parts

Brakes
- Shimano BR-MT200
BR-MT200BR-U300
Disc rotors
- Shimano SM-RT10
SM-RT10

Wheels and tires

4 parts

Cockpit and contact points

4 parts

Handlebar

Lightskin with Integrated Lights Not identified
Saddle
- Selle Royal Vivo
Seatpost

Lightskin with Integrated Lights Not identified
Stem
- BMC

Other components

2 parts

Lights

Integrated Front & Rear Not identified
Racks

Premium Fenders with Integrated Rear Not identified

Sizes and geometry

2 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size SM

Table

Reach 390mm

Stack 590mm

Wheelbase 1063mm

Head angle 70.0°

Seat angle 74.0°

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.

Size Reported by the manufacturer

Complete manufacturer geometry table 2 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	390	420
Stackmm	590	640
Top tube lengthmm	559	603
Seat tube lengthmm	450	500
Head tube lengthmm	165	219
Head tube angle	70°	70°
Seat tube angle	74°	74°
Chainstay lengthmm	440	440
Wheelbasemm	1063	1111
Front centermm	632	680
Bottom bracket dropmm	67	67
Standover heightmm	644	653
Fork rakemm	45	45
Trailmm	75	75
Stack/reach ratio	1.51	1.52
Suspension and parts
Crank lengthmm	170	170
Handlebar widthmm	620	620
Stem lengthmm	80	80
Stem angle	-5°	-5°
Seatpost lengthmm	350	350

Not published by the manufacturer: Bottom bracket height, Front travel, Rear travel and Dropper post travel.

Specifications

Frame and fork

Intended fit: womens
Frame material: Aluminum
Fork material: Aluminum
Weight limit: 120 kg

264.6 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Rear sprockets: 1
Drivetrain technologies: belt-drive, internally-geared-hub

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Tire clearance: Maximum tire width: 42c
Tire width: 37c
Travel: Front: Additional specification: Not available: Yes
Rear: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 700c

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

Differences across 2023 builds
Specification	This bicycle BMC 257 AL ONE ST	BMC 257 AL Four	BMC 257 AL Four ST	BMC 257 AL ONE	BMC 257 AL Three	BMC 257 AL Three ST
Frame
Intended fit	womens	Unisex	womens	Unisex	Unisex	womens
Bicycle weight	Not informed	Not informed	Not informed	14 kg	Not informed	Not informed
Drivetrain
Rear sprockets	1	11	11	1	1	1
Drivetrain technologies	belt-drive, internally-geared-hub	Not informed	Not informed	belt-drive, internally-geared-hub	belt-drive, internally-geared-hub	belt-drive, internally-geared-hub