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 AL ONE 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.
Technology
Powerful Companion
Swiss Design
Durable
Safe
Technical Overview
Frameset
Frame:
257 AMP Premium Aluminium Smoothwelded | Integrated Battery | Internal Cable Routing | Powder Coat Finish | Post Mount Disc | 12x142mm Thru-Axle
Fork:
257 Premium Aluminium | Fender Mounts | Flat Mount Disc | 12x100mm Thru-Axle
Suspension
Front Suspension:
E-System
Drive Unit:
Bosch Performance Line CX
Battery Pack:
Bosch PowerTube 625 Wh
Drive Unit Control:
Bosch Kiox
Display:
Bosch Kiox
Charger:
Bosch Compact Charger
Cockpit
Handlebar:
BMC LSB 01
Stem:
ICS MTT x Redshift Suspension Stem - Integrated Cockpit System Technology
Seatpost:
BMC LSP 02
Saddle:
Selle Royal Vivo
Seat
Seatpost:
BMC LSP 02
Saddle:
Selle Royal Vivo
Drivetrain
Gears:
1x8
Crankset:
Miranda Classic x Bosch / Gates CDX 46T
Cassette:
GATES CDX 22T
Chain:
Belt GATES 113 CDX
Shifters:
SHIMANO Alfine SL-S7000 - Rapidfire Plus 8 spd
Brakes
Brake Levers / Calipers:
TEKTRO HD-EU818 / 817
Rotors:
TEKTRO TR25 180 / 160mm
Wheels
Rims:
SR500
Hubs (F/R):
CL-712 / SHIMANO Alfine 8
Tires:
Pirelli Angel GT - 37mm
Additional Information
Tire Clearance:
42mm (Measured Width)
ASTM Classification:
Level 2
Weight without Pedals:
21.9 Kg
Weight Limit:
120 Kg
| Size | S | M | L | XL |
|---|---|---|---|---|
| Rider Height | <168 | 168-180 | 178-190 | >190 |
| Reach | 424 | 424 | 425 | 436 |
| Stack | 560 | 590 | 620 | 645 |
| Bar Drop | ||||
| Bar Reach | ||||
| Bar Rise | ||||
| Bar Sweep | ||||
| Bar Width | 680 | 680 | 680 | 680 |
| Base Bar Drop Flat Cockpit | ||||
| Base Bar Drop V-Cockpit | ||||
| Base Bar Reach Flat Cockpit | ||||
| Base Bar Reach V-Cockpit | ||||
| BB Drop | 67 | 67 | 67 | 67 |
| BB Drop (SLACK) | ||||
| BB Drop (STEEP) | ||||
| BB Height (SLACK) | ||||
| BB Height (STEEP) | ||||
| Chainstay | ||||
| Crank Length | 170 | 170 | 170 | 170 |
| LT | BB Drop (SLACK) | ||||
| LT | BB Drop (STEEP) | ||||
| LT | BB Height (SLACK) | ||||
| LT | BB Height (STEEP) | ||||
| LT | Chainstay | ||||
| LT | Fork Length | ||||
| LT | Fork Rake | ||||
| LT | Frame Size | ||||
| LT | Front Center (SLACK) | ||||
| LT | Front Center (STEEP) | ||||
| LT | Head Tube | ||||
| LT | HT Angle (SLACK) | ||||
| LT | HT Angle (STEEP) | ||||
| LT | Reach (SLACK) | ||||
| LT | Reach (STEEP) | ||||
| LT | Rider Height | ||||
| LT | Seat Tube | ||||
| LT | ST Angle @750mm Saddle Height (SLACK) | ||||
| LT | ST Angle @750mm Saddle Height (STEEP) | ||||
| LT | ST Angle Actual (SLACK) | ||||
| LT | ST Angle Actual (STEEP) | ||||
| LT | ST Angle Effective (SLACK) | ||||
| LT | ST Angle Effective (STEEP) | ||||
| LT | Stack (SLACK) | ||||
| LT | Stack (STEEP) | ||||
| LT | Stand Over Height (80 in Front of BB) | ||||
| LT | Stand Over Height (Lowest Point) | ||||
| LT | Top Tube (SLACK) | ||||
| LT | Top Tube (STEEP) | ||||
| LT | Wheelbase (SLACK) | ||||
| LT | Wheelbase (STEEP) | ||||
| ST | BB Drop (SLACK) | ||||
| ST | BB Drop (STEEP) | ||||
| ST | BB Height (STACK) | ||||
| ST | BB Height (STEEP) | ||||
| ST | Chainstay | ||||
| ST | Fork Length | ||||
| ST | Fork Rake | ||||
| ST | Frame Size | ||||
| ST | Front Center (SLACK) | ||||
| ST | Front Center (STEEP) | ||||
| ST | Head Tube | ||||
| ST | HT Angle (SLACK) | ||||
| ST | HT Angle (STEEP) | ||||
| ST | Reach (SLACK) | ||||
| ST | Reach (STEEP) | ||||
| ST | Rider Height | ||||
| ST | Seat Tube | ||||
| ST | ST Angle @750mm Saddle Height (SLACK) | ||||
| ST | ST Angle @750mm Saddle Height (STEEP) | ||||
| ST | ST Angle Actual (SLACK) | ||||
| ST | ST Angle Actual (STEEP) | ||||
| ST | ST Angle Effective (SLACK) | ||||
| ST | ST Angle Effective (STEEP) | ||||
| ST | Stack (SLACK) | ||||
| ST | Stack (STEEP) | ||||
| ST | Stand Over Height (80 in Front of BB) | ||||
| ST | Stand Over Height (Lowest Point) | ||||
| ST | Top Tube (SLACK) | ||||
| ST | Top Tube (STEEP) | ||||
| ST | Wheelbase (SLACK) | ||||
| ST | Wheelbase (STEEP) | ||||
| Fork Length | 408 | 408 | 408 | 408 |
| Fork Rake | 45 | 45 | 45 | 45 |
| Frame Size | ||||
| Front Center | 655 | 665 | 677 | 699 |
| Front Center (SLACK) | ||||
| Front Center (STEEP) | ||||
| Head Tube | 133 | 165 | 197 | 225 |
| Head Tube Angle | 70 | 70 | 70 | 70 |
| HT Angle (SLACK) | ||||
| HT Angle (STEEP) | ||||
| Pad Reach Flat Cockpit | ||||
| Pad Reach V-Cockpit | ||||
| Pad Stack Flat Cockpit | ||||
| Pad Stack V-Cockpit | ||||
| Reach (SLACK) | ||||
| Reach (STEEP) | ||||
| Rear Center | 440 | 440 | 440 | 440 |
| Saddle Height Range | ||||
| Seat Angle | 75 | 75 | 75 | 75 |
| Seat Tube | 480 | 510 | 540 | 570 |
| Seatpost Drop | ||||
| Seatpost Length | 350 | 350 | 350 | 350 |
| Seatpost Offset | 15 | 15 | 15 | 15 |
| ST Angle @750mm Saddle Height (SLACK) | ||||
| ST Angle @750mm Saddle Height (STEEP) | ||||
| ST Angle Actual (SLACK) | ||||
| ST Angle Actual (STEEP) | ||||
| ST Angle Effective (SLACK) | ||||
| ST Angle Effective (STEEP) | ||||
| Stack (SLACK) | ||||
| Stack (STEEP) | ||||
| Stand Over Height (80 in Front of BB) | ||||
| Stand Over Height (Lowest Point) | ||||
| Standover Height | 766 | 794 | 819 | 847 |
| Stem Angle | ||||
| Stem Length | 70 | 70 | 80 | 90 |
| Top Tube | 574 | 582 | 591 | 609 |
| Top Tube (SLACK) | ||||
| Top Tube (STEEP) | ||||
| Trail | 75 | 75 | 75 | 75 |
| Wheelbase | 1085 | 1096 | 1108 | 1129 |
| Wheelbase (SLACK) | ||||
| Wheelbase (STEEP) |
