BMC Urbanchallenge AL FOUR
With its clean looks, exacting attention to detail and functional integration, the 257 AL FOUR is the partner in crime for your daily rides. Its Premium Aluminium frame is light, versatile and powder coated for durability. A powerful kickstand, premium fenders and the intuitive Shimano Deore 1x11 single chainring groupset gives you that joyful elegant feeling of velocity and safety.
BMC 257 AL FOUR
With its clean looks, exacting attention to detail and functional integration, the 257 AL FOUR is the partner in crime for your daily rides. Its Premium Aluminium frame is light, versatile and powder coated for durability. A powerful kickstand, premium fenders and the intuitive Shimano Deore 1x11 single chainring groupset gives you that joyful elegant feeling of velocity and safety.
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
Drivetrain
- Gears: 1x11
- Crankset: FSA Vero Pro 40T
- Cassette: SHIMANO Deore CS-M5100 11 spd 11-42T
- Chain: SHIMANO Deore CN-HG601 11 spd
- Rear Derailleur: SHIMANO Deore RD-M5120 11 spd
- Shifters: SHIMANO Deore SL-M5100 Rapidfire Plus
Brakes
- Brake Levers / Calipers: SHIMANO MT200 levers | BR-U300 Calipers
- Rotors: SHIMANO RT10 Rotors 180 / 180mm
Wheels
- Rims: PFR300
- 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
BMC 257 AL FOUR
With its clean looks, exacting attention to detail and functional integration, the 257 AL FOUR is the partner in crime for your daily rides. Its Premium Aluminium frame is light, versatile and powder coated for durability. A powerful kickstand, premium fenders and the intuitive Shimano Deore 1x11 single chainring groupset gives you that joyful elegant feeling of velocity and safety.
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
Drivetrain
- Gears: 1x11
- Crankset: FSA Vero Pro 40T
- Cassette: SHIMANO Deore CS-M5100 11 spd 11-42T
- Chain: SHIMANO Deore CN-HG601 11 spd
- Rear Derailleur: SHIMANO Deore RD-M5120 11 spd
- Shifters: SHIMANO Deore SL-M5100 Rapidfire Plus
Brakes
- Brake Levers / Calipers: SHIMANO MT200 levers | BR-U300 Calipers
- Rotors: SHIMANO RT10 Rotors 180 / 180mm
Wheels
- Rims: PFR300
- 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
| Brand | BMC |
|---|---|
| Colour | Powder Metallic Grey |
| Model Year | MY2022 |
| Range | Urbanchallenge |
| Bike Type | Lifestyle |
| eBike | No |
| Frame Material | Alloy |
| Gender | Unisex |
| Size | S | M | L | XL |
|---|---|---|---|---|
| Rider Height | <168 | 168-180 | 178-190 | >190 |
| Reach | 400 | 415 | 425 | 440 |
| Stack | 560 | 590 | 620 | 650 |
| Bar Reach | ||||
| Bar Width | 600 | 600 | 600 | 600 |
| BB Drop | 67 | 67 | 67 | 67 |
| Crank Length | 170 | 170 | 175 | 175 |
| Fork Length | 408 | 408 | 408 | 408 |
| Fork Rake | 45 | 45 | 45 | 45 |
| Front Center | 631 | 657 | 677 | 703 |
| Head Tube | 133 | 165 | 197 | 229 |
| Head Tube Angle | 70 | 70 | 70 | 70 |
| Rear Center | 440 | 440 | 440 | 440 |
| Seat Angle | 74 | 74 | 74 | 74 |
| Seat Tube | 480 | 510 | 540 | 555 |
| Seatpost Length | 350 | 350 | 350 | 350 |
| Seatpost Offset | 15 | 15 | 15 | 15 |
| Standover Height | 760 | 790 | 819 | 838 |
| Stem Angle | ±8 | ±8 | ±8 | ±8 |
| Stem Length | 90 | 90 | 100 | 100 |
| Top Tube | 560 | 584 | 603 | 626 |
| Trail | 75 | 75 | 75 | 75 |
| Wheelbase | 1062 | 1088 | 1109 | 1135 |
