Free Shipping on Orders over €150
We currently only offer shipping to addresses or retailers located in France and Germany. Additional European countries will be available soon

257 AMP

AL ONE ST

Bosch Performance Line CX Drive Unit, 625 Wh PowerTube Battery, Kiox Display
ICS MTT x Redshift Suspension Stem - Integrated Cockpit Design
Shimano Alfine 8
As low as €5,699.00
Other CurrenciesEURO €5699
CHF 5999
USD $5899
CAD C$8299
AUD A$
SCEuro €5999

An all-new Urban boost, the 257 AMP is your amplified partner in crime for daily rides. With its clean looks, exacting attention to detail and functional integration, the 257 AMP ONE ST features a lightweight and versatile Premium Aluminium frame with powder coated finish for durability. The naturally engaging and powerful BOSCH Performance CX belt drive motor combined with the comfort enhancing ICS MTT Stem and premium lights give you that joyful elegant feeling of velocity and safety.

Find your fit

See it instore
An all-new Urban boost, the 257 AMP is your amplified partner in crime for daily rides. With its clean looks, exacting attention to detail and functional integration, the 257 AMP ONE ST features a lightweight and versatile Premium Aluminium frame with powder coated finish for durability. The naturally engaging and powerful BOSCH Performance CX belt drive motor combined with the comfort enhancing ICS MTT Stem and premium lights give you that joyful elegant feeling of velocity and safety.

Innovation
Powerful Companion

The BOSCH Performance CX drive unit provides powerful yet natural pedal assistance, while the high-capacity 625 Wh battery ensures long intervals between charges. The Kiox display is easy to operate and delivers a great range of features thanks to the connectivity with Bosch eBike Connect.

Swiss Design

Stand out in style with a minimalist yet iconic Swiss Design.

Durable

257 bikes use Premium Aluminium and Powder Coating for superior durability.

Safe

The 257 series is equipped with a powerful front light and a high-visibility rear light. The perfect combination of style, functionality and look to add safety in the urban environment. The built-in lights are powered by the internal battery and have StvZo Certification.

Functional

257 AMP bikes are equipped with premium fenders and integrated rear carrier to blend style and functionality. Kickstands further improve ease during daily use.

Comfortable

The ICS MTT suspension stem greatly eliminates the white noise created by vibrations and small impacts for improved comfort, control, and a confident ride. The stem can be tuned based on weight and riding style for a tailored riding experience.

Reliable

257 AMP ONE and ONE ST feature a belt drivetrain and integrated gear hub for low maintenance and durability. Belt transmissions and internal gear hubs are not affected by the weather and provide great reliability with little maintenance. Just enjoy the ride, 257.

Technical Overview

  • Frame

    257 AMP Premium Aluminium Smoothwelded
    Integrated Battery
    Internal Cable Routing
    Powder Coat Finish
    Flat Mount Disc
    12x142mm Thru-Axle
  • Drive Unit

    Bosch Performance Line CX
  • Drive Unit Control

    Bosch Kiox
  • Display

    Bosch Kiox
  • Battery Pack

    Bosch PowerTube 625 Wh
  • Charger

    Bosch Compact Charger
  • Fork

    257 Premium Aluminium
    Fender Mounts
    Flat Mount Disc
    12x100mm Thru-Axle
  • Gears

    1x8
  • Chainwheel

    Miranda Classic x Bosch / Gates CDX 46T
  • Cassette

    GATES CDX 22T
  • Chain

    Belt GATES 113 CDN
  • Shifters

    SHIMANO Alfine 8 Rapidfire Plus
  • Brakes

    TRP HD (180/160)
  • Handlebar

    BMC LSB 01
  • Stem

    ICS MTT x Redshift Suspension Stem - Integrated Cockpit Design
  • Seatpost

    BMC LSP 02
  • Saddle

    Selle Royal Vivo Women's
  • Hubs

    CL-712 / Shimano Alfine 8
  • Rims

    SR500
  • Tires

    Pirelli Angel GT - 37mm
  • Tire Clearance

    42mm (Measured Width)
  • Extras

    Fenders with Integrated Rack, Lights and Kickstand
  • Weight Limit

    120 Kg
  • ASTM Classification

    Level 2
Size S M
Rider Height CM 160-172 170-184
Stack MM 590 640
Reach MM (reach) 424 420
Seat Tube MM (st) 450 450
Top Tube MM (tt) 582 591
Head Tube MM (ht) 165 217
Seat Tube Angle (sa) 75.0 75.0
Head Angle (ha) 70.0 70.0
Rear Center MM (rc) 440 440
Front Center MM (fc) 665 679
Wheelbase MM (wb) 1096 1110
BB Drop MM (drop) 67 67
Fork Length MM (fl) 408 408
Fork Rake MM (fr) 45 45
Trail MM (trail) 75 75
Crank Length MM 170 170
Stem Length MM 70 70
Bar Width MM 680 680
Post Offset MM 15 15
Standover Height mm 649 672
Seatpost Length MM 350 350

Frameset

  • 257 AMP premium aluminum frame (classic and staggered versions)
  • 257 AMP premium aluminum fork

Technical Details

  • Powder coated finish for superior durability
  • Internal cable management
  • Round seatpost, 31.6 mm
  • External seat clamp
  • Fender mounts
  • Kickstand mount
  • Rack mounts
  • ASTM level 2

Drive Unit Details

  • Drive Unit: Bosch Performance Line CX
  • Battery: Bosch PowerTube 625 Wh
  • Display: Bosch Kiox
  • Controls: Bosch Kiox
  • Charger: Bosch Compact Charger
  • Removable battery with keys included

Sizes

S, M, L, XL - S, M (staggered version)

Cockpit

ICS MTT x Redshift Suspension Stem; LSB01 Bars

  • ICS MTT stem angle: 0°
  • 330 g (stem)

Compatibility

Frame, Fork and Seatpost

  • Tapered fork with round 1-1/8" steerer, flat mount
  • Compatible with belt drive (specific dropouts)
  • Round seatpost, 31.6 mm

Brakes

  • Front brake: post mount, 160 mm rotors
  • Rear brake: post mount, 160 mm rotors

Wheels and Axles

  • Maximum tire clearance 42 mm (actual measured width), 38 mm with fenders
  • Front thru-axle: 12x100 mm (diameter/frame spacing)
  • Rear thru-axle: 12x142 mm (diameter/frame spacing)