With its clean looks, exacting attention to detail and functional integration, the 257 AL TWO ST is your partner in crime for urban rides. Its Premium Aluminium frame is light, versatile and powder coated for durability. Integrated StVZO certified lights, premium fenders and the intuitive SRAM Apex 1 single chainring groupset gives you that joyful elegant feeling of velocity and safety.
Technology
Swiss Design
Durable
Safe
Functional
Technical Overview
Frameset
Frame:
257 Premium Aluminium Smoothwelded | Staggered Top Tube | 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
Cockpit
Handlebar:
Lightskin with Integrated Lights
Stem:
BMC MSM01 Stem
Seatpost:
Lightskin with Integrated Lights
Saddle:
Selle Royal Vivo Women's
Seat
Seatpost:
Lightskin with Integrated Lights
Saddle:
Selle Royal Vivo Women's
Drivetrain
Gears:
1x11
Crankset:
SRAM Apex 1 40T
Cassette:
SRAM PG-1130 11-42T
Chain:
SRAM Apex 11 Speed
Rear Derailleur:
SRAM Apex 1 Long Cage
Shifters:
SRAM SL APEX TRIGGER 11sp
Brakes
Brake Levers / Calipers:
SHIMANO BR-U300 | MT200 levers
Rotors:
RT10 Rotors (180 / 180)
Wheels
Rims:
SR500
Hubs (F/R):
CL-712 / RXC-142S
Tires:
Pirelli Angel GT - 37mm
Additional Information
Tire Clearance:
42mm (Measured Width)
ASTM Classification:
Level 2
Weight Limit:
120 Kg
| Size | S | M |
|---|---|---|
| Rider Height | <170 | 170-185 |
| Reach | 390 | 420 |
| Stack | 590 | 640 |
| Bar Drop | ||
| Bar Reach | ||
| Bar Rise | ||
| Bar Sweep | ||
| Bar Width | 620 | 620 |
| Base Bar Drop Flat Cockpit | ||
| Base Bar Drop V-Cockpit | ||
| Base Bar Reach Flat Cockpit | ||
| Base Bar Reach V-Cockpit | ||
| BB Drop | 67 | 67 |
| BB Drop (SLACK) | ||
| BB Drop (STEEP) | ||
| BB Height (SLACK) | ||
| BB Height (STEEP) | ||
| Chainstay | ||
| Crank Length | 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 |
| Fork Rake | 45 | 45 |
| Frame Size | ||
| Front Center | 632 | 680 |
| Front Center (SLACK) | ||
| Front Center (STEEP) | ||
| Head Tube | 165 | 219 |
| Head Tube Angle | 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 |
| Saddle Height Range | ||
| Seat Angle | 74 | 74 |
| Seat Tube | 450 | 500 |
| Seatpost Drop | ||
| Seatpost Length | 350 | 350 |
| Seatpost Offset | 10 | 10 |
| 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 | 644 | 653 |
| Stem Angle | -5 | -5 |
| Stem Length | 80 | 80 |
| Top Tube | 559 | 603 |
| Top Tube (SLACK) | ||
| Top Tube (STEEP) | ||
| Trail | 75 | 75 |
| Wheelbase | 1063 | 1111 |
| Wheelbase (SLACK) | ||
| Wheelbase (STEEP) |
