BMC 257 AL AMP TWO ST

Name: BMC 257 AL AMP TWO ST
Brand: BMC

2025 UrbanCommuter Electric bicycle Manufacturer page

Image not available

The bicycle record remains available with its published technical data.

Last known price: $4,699

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 12 38t
Battery: 625 Wh
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 160–172
MD 170–184

Components

16 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

257 AMP Premium Aluminium | Smoothwelded | Integrated Battery | Internal Cable Routing | Powder Coat Finish | Flat Mount Disc | 12x142mm Thru-Axle Not identified

Electric system

4 parts

Suspension

1 part

Fork

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

Drivetrain

6 parts

Bottom bracket
- Bosch
Cassette
- Shimano Deore CS-M6100 12 speeds
CS-M6100
Chain
- Shimano Deore CN-M6100
CN-M6100
Crankset
- Bosch
Rear derailleur
- Shimano Deore RD-M6100 12 speeds
RD-M6100
Shifters
- Shimano Deore SL-M6100 12 speeds
SL-M6100

Brakes

2 parts

Wheels and tires

2 parts

Rims

E-SRX30 Not identified

E-SRX30
Tires
- Pirelli

Cockpit and contact points

4 parts

Handlebar
- BMC
Saddle
- Selle Royal Vivo
Seatpost
- BMC
Stem

ICS MTT x Redshift Suspension Stem | Integrated Cockpit System Technology Not identified

Sizes and geometry

2 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size SM

Table

Reach 424mm

Stack 590mm

Wheelbase 1096mm

Head angle 70.0°

Seat angle 75.0°

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	424	420
Stackmm	590	640
Top tube lengthmm	582	591
Seat tube lengthmm	450	450
Head tube lengthmm	165	217
Head tube angle	70°	70°
Seat tube angle	75°	75°
Chainstay lengthmm	440	440
Wheelbasemm	1096	1110
Front centermm	665	679
Bottom bracket dropmm	67	67
Standover heightmm	649	672
Fork rakemm	45	45
Trailmm	75	75
Stack/reach ratio	1.39	1.52
Suspension and parts
Crank lengthmm	170	170
Handlebar widthmm	680	680
Stem lengthmm	72	80
Seatpost lengthmm	350	400

Not published by the manufacturer: Bottom bracket height, Front travel, Rear travel, Stem angle 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
Smallest chainring: 38
Largest chainring: 38
Rear sprockets: 12

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Electric system

Battery capacity: 625 Wh

Additional specifications

Battery: Bosch PowerTube | 625 Wh | Certified by Intertek Testing Services NA, Inc.
Bottom bracket standard: Bosch
Tire clearance: Maximum tire width: 42c
Tire width: 37c
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 2025 builds

Differences across 2025 builds
Specification	This bicycle BMC 257 AL AMP TWO ST	BMC 257 AL AMP ONE	BMC 257 AL AMP ONE ST	BMC 257 AL AMP Three	BMC 257 AL AMP Three ST	BMC 257 AL AMP TWO
Frame
Intended fit	womens	Unisex	womens	Unisex	womens	Unisex
Drivetrain
Smallest chainring	38	46	46	38	38	38
Largest chainring	38	46	46	38	38	38
Rear sprockets	12	1	1	10	10	12
Drivetrain technologies	Not informed	belt-drive, internally-geared-hub	belt-drive, internally-geared-hub	Not informed	Not informed	Not informed