The 257 ONE is your all-new urban bike of choice. With its clean looks, exacting attention to detail and functional integration, this is your partner in crime for daily rides. Its Premium Aluminium frame is light, versatile and powder coated for durability. Integrated StVZO certified lights, premium fenders and the reliable Shimano Alfine 8 groupset with beltdrive gives you that joyful elegant feeling of velocity and safety.

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

Reliable
257 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.

Full Specifications

Frame
257 Premium Aluminium Smoothwelded
Powder Coat Finish
Internal Cable Routing
BSA Threaded Bottom Bracket
Flat Mount Disc
12x142mm Thru-Axle

Fork
257 Premium Aluminium
Fender Mounts
Flat Mount Disc: 12x100mm Thru-Axle
Gears: 1x8
Chainwheel: GATES S550 CDX 55T
Cassette: GATES SUREFIT 3-LOBE UNIFIED CDX2 4T
Chain: Belt GATES 120 CDX
Shifters: SHIMANO Alfine 8 Rapidfire Plus
Brakes: SHIMANO BR-U300 - MT200 levers / RT10 Rotors (180/180)
Handlebar: Lightskin with Integrated Lights
Stem: MSM01 Stem
Seatpost: Lightskin with Integrated Lights
Saddle: Selle Royal Vivo
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

Technical Details & Manuals

Frameset
257 premium aluminum frame (classic and staggered versions)
257 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

Compatibility
Frame, Fork and Seatpost
Tapered fork with round 1-1/8" steerer, flat mount
Compatible with belt drive (specific dropouts)
Seatpost: 31.6 mm
BSA threaded bottom bracket

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)

The 257 ONE is your all-new urban bike of choice. With its clean looks, exacting attention to detail and functional integration, this is your partner in crime for daily rides. Its Premium Aluminium frame is light, versatile and powder coated for durability. Integrated StVZO certified lights, premium fenders and the reliable Shimano Alfine 8 groupset with beltdrive gives you that joyful elegant feeling of velocity and safety.

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

Reliable
257 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.

Full Specifications

Frame
257 Premium Aluminium Smoothwelded
Powder Coat Finish
Internal Cable Routing
BSA Threaded Bottom Bracket
Flat Mount Disc
12x142mm Thru-Axle

Fork
257 Premium Aluminium
Fender Mounts
Flat Mount Disc: 12x100mm Thru-Axle
Gears: 1x8
Chainwheel: GATES S550 CDX 55T
Cassette: GATES SUREFIT 3-LOBE UNIFIED CDX2 4T
Chain: Belt GATES 120 CDX
Shifters: SHIMANO Alfine 8 Rapidfire Plus
Brakes: SHIMANO BR-U300 - MT200 levers / RT10 Rotors (180/180)
Handlebar: Lightskin with Integrated Lights
Stem: MSM01 Stem
Seatpost: Lightskin with Integrated Lights
Saddle: Selle Royal Vivo
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

Technical Details & Manuals

Frameset
257 premium aluminum frame (classic and staggered versions)
257 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

Compatibility
Frame, Fork and Seatpost
Tapered fork with round 1-1/8" steerer, flat mount
Compatible with belt drive (specific dropouts)
Seatpost: 31.6 mm
BSA threaded bottom bracket

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)

More Information
BrandBMC
ColourPowder Steel Blue
Model YearMY2022
RangeUrbanchallange
Bike TypeLifestyle
eBikeNo
Frame MaterialAlloy
ColourBlue
GenderUnisex
Size S M L XL
Rider Height CM <168 168-180 178-190 >190
Stack MM 560 590 620 650
Reach MM (reach) 400 415 425 440
Seat Tube MM (st) 480 510 540 555
Top Tube MM (tt) 560 584 603 626
Head Tube MM (ht) 133 165 197 229
Seat Tube Angle (sa) 74.0 74.0 74.0 74.0
Head Angle (ha) 70.0 70.0 70.0 70.0
Rear Center MM (rc) 440 440 440 440
Front Center MM (fc) 631 657 677 703
Wheelbase MM (wb) 1062 1088 1109 1135
BB Drop MM (drop) 67 67 67 67
Fork Length MM (fl) 408 408 408 408
Fork Rake MM (fr) 45 45 45 45
Trail MM (trail) 75 75 75 75
Crank Length MM 170 170 170 170
Stem Length MM 80 80 90 90
Stem Angle -5 -5 -5 -5
Bar Width MM 620 620 620 620
Post Offset MM 10 10 10 10
Standover Height mm 760 790 819 838
Seatpost Length MM 350 350 350 350
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