BMC 257 AMP AL TWO ST

Name: BMC 257 AMP AL TWO ST
Brand: BMC

2023 UrbanCommuter Electric bicycle Manufacturer page

BMC 257 AMP AL TWO ST, color Powder Sand

Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 12
Battery: 625 Wh
Weight: 21.9 kg 48.3 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 160–172
MD 170–184

Components

16 of 22 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 | Staggered Top Tube | Integrated Battery | Internal Cable Routing | Powder Coat Finish | Post Mount Disc | 12 x 142mm 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
Chain
- KMC e12 12 speeds
Crankset
- Bosch
Rear derailleur
- Shimano Deore RD-M6100 12 speeds
RD-M6100
Shifters
- Shimano Deore SL-M6100 12 speeds
SL-M6100

Brakes

2 parts

Brakes
- Tektro
HD-EU818
Disc rotors
- TRP RS02M

Wheels and tires

4 parts

Front hub

RX-812 / MSL-142S Not identified

RX-812MSL-142S
Rear hub

RX-812 / MSL-142S Not identified

RX-812MSL-142S
Rims

SR500 Not identified
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	70	70
Seatpost lengthmm	350	350

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
Bicycle weight: 21.9 kg

48.3 lb
Weight limit: 120 kg

264.6 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
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
Bottom bracket standard: Bosch
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 AMP AL TWO ST	BMC 257 AMP AL ONE	BMC 257 AMP AL ONE ST	BMC 257 AMP AL ONE ST USA	BMC 257 AMP AL ONE USA	BMC 257 AMP AL TWO
Frame
Intended fit	womens	Unisex	womens	womens	Unisex	Unisex
Drivetrain
Rear sprockets	12	1	1	1	1	12
Drivetrain technologies	Not informed	belt-drive, internally-geared-hub	belt-drive, internally-geared-hub	belt-drive, internally-geared-hub	belt-drive, internally-geared-hub	Not informed
Other specifications
Battery	Capacity: 625 WhBosch PowerTube \| 625 Wh	Capacity: 625 WhBosch PowerTube \| 625 Wh	Capacity: 625 WhBosch PowerTube \| 625 Wh	Capacity: 625 WhBosch PowerTube \| 625 Wh \| Certified by Intertek Testing Services NA, Inc.	Capacity: 625 WhBosch PowerTube \| 625 Wh \| Certified by Intertek Testing Services NA, Inc.	Capacity: 625 WhBosch PowerTube \| 625 Wh