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 | Flat Mount Disc | 12 x 142mm Thru-Axle
Fork:
257 Premium Aluminium | Fender Mounts | Flat Mount Disc | 12 x 100mm Thru-Axle
Cockpit
Stem:
BMC MSM 01
Handlebar:
Lightskin with Integrated Lights
Seat
Seatpost:
Lightskin with Integrated Lights
Saddle:
Selle Royal Vivo Women's
Brakes
Brake Levers / Calipers:
SHIMANO BR-U300 | MT200 Levers
Rotors:
RT10 Rotors
Rotor Size (F/R):
180 / 180
Wheels
Rims:
SR500
Hubs (F/R):
CL-712 | RXC-142S
Tires:
Pirelli Angel GT | 37mm
Additional Information
Tire Clearance:
42mm
ASTM Classification:
Level 2
System Weight Limit:
120kg
| Size | S | M |
|---|---|---|
| Rider Height | <170 | 170-185 |
| Reach | 390 | 420 |
| Stack | 590 | 640 |
| Bar Width | 620 | 620 |
| BB Drop | 67 | 67 |
| Crank Length | 170 | 170 |
| Fork Length | 408 | 408 |
| Fork Rake | 45 | 45 |
| Front Center | 632 | 680 |
| Head Tube | 165 | 219 |
| Head Tube Angle | 70 | 70 |
| Rear Center | 440 | 440 |
| Seat Angle | 74 | 74 |
| Seat Tube | 450 | 500 |
| Seatpost Length | 350 | 350 |
| Seatpost Offset | 10 | 10 |
| Standover Height | 644 | 653 |
| Stem Angle | -5 | -5 |
| Stem Length | 80 | 80 |
| Top Tube | 559 | 603 |
| Trail | 75 | 75 |
| Wheelbase | 1063 | 1111 |
