With its clean looks, exacting attention to detail and functional integration, the 257 AL THREE ST is your urban partner in crime for daily rides. Its Premium Aluminium frame is light, versatile and powder coated for durability. A powerful kickstand, premium fenders and the reliable Shimano Nexus 8 beltdrive groupset gives you that joyful elegant feeling of velocity and safety.
Technology
Swiss Design
Durable
Functional
Reliable
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:
BMC LSB 03
Stem:
BMC RSM01
Seatpost:
BMC LSP 02
Saddle:
Selle Royal Vivo Women's
Seat
Seatpost:
BMC LSP 02
Saddle:
Selle Royal Vivo Women's
Drivetrain
Gears:
1x8
Crankset:
GATES S150 CDN 55T
Cassette:
GATES SUREFIT 3-LOBE UNIFIED CDX2 4T
Chain:
Belt GATES 120 CDX
Shifters:
SHIMANO Alfine SL-S7000 - Rapidfire Plus 8 spd
Brakes
Brake Levers / Calipers:
SHIMANO MT200 levers | BR-U300 Calipers
Rotors:
SHIMANO RT10 Rotors 180 / 180mm
Wheels
Rims:
PFR300
Hubs (F/R):
CL-712 / SHIMANO Nexus 8
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 | 600 | 600 |
| 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 | 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 | 644 | 653 |
| Stem Angle | ±8 | ±8 |
| Stem Length | 90 | 90 |
| Top Tube | 559 | 603 |
| Top Tube (SLACK) | ||
| Top Tube (STEEP) | ||
| Trail | 75 | 75 |
| Wheelbase | 1063 | 1111 |
| Wheelbase (SLACK) | ||
| Wheelbase (STEEP) |
