MSRP | $739 | $759 |
|---|---|---|
Where to Buy | — $1 At | — $1 At |
Category | Mountain Youth | Mountain Youth |
Weight | 20.3 lbs | 22.5 lbs |
| Aluminum | Aluminum | |
Fork | Aluminum | Aluminum |
Wheels | Aluminum | Aluminum |
Wheel Size | 20″ | 24″ |
Brakes | Hydraulic Disc | Hydraulic Disc |
Groupset | X4 | X4 |
Drivetrain | 1 × 8 | 1 × 8 |
Brand Site | ||
Summary | The BMC Twostroke AL 20 and BMC Twostroke AL 24 are both aluminum frame mountain youth bikes with mid-range components and hydraulic disc brakes. The Twostroke AL 20 has 20″ aluminum wheels, while the Twostroke AL 24 has 24″ aluminum wheels and higher gearing. | |
Frame | Twostroke AL 20" Lightweight Aluminium with Powder Coat Finish, 1 1/8" Head Tube, BSA Threaded Bottom Bracket, 140mm Post Mount, 9X135mm QR BB Standard: BSA, Threaded Colors: Green Black; Turquoise & Black | Twostroke AL 24" Lightweight Aluminium with Powder Coat Finish, 1 1/8" Head Tube, BSA Threaded Bottom Bracket, 140mm Post Mount, 9X135mm QR BB Standard: BSA, Threaded Colors: Green Black; Turquoise & Black |
|---|---|---|
Fork | Twostroke AL 20" Lightweight Aluminium with Powder Coat Finish, 140mm Post Mount, 9X100mm QR | Twostroke AL 24" Lightweight Aluminium with Powder Coat Finish, 140mm Post Mount, 9X100mm QR |
Bottom Bracket | BSA, threaded | BSA, threaded |
Stem | BMC 40mm Length ± 6 Angle | BMC 40mm Length ± 6 Angle |
Handlebar | SDG Slater Handlebar 650mm Wide 20mm Rise 19mm Bar Ends 31.8mm Clamp. | SDG Slater Handlebar 650mm Wide 20mm Rise 19mm Bar Ends 31.8mm Clamp. |
Saddle | SDG Fly Jr | SDG Fly Jr |
Seatpost | Alloy 27.2mm | Alloy 27.2mm |
Rear Derailleur | SRAM X4 Medium Cage | SRAM X4 Medium Cage |
|---|---|---|
Crank | Lightweight Forged Alloy Cranks 32T 1x Specific Narrow Wide Chainring 127mm | Lightweight Forged Alloy Cranks 32T 1x Specific Narrow Wide Chainring 140mm |
Shifters | SRAM X4 8Spd Trigger | SRAM X4 8Spd Trigger |
Cassette | SUNRACE 11-34T | SUNRACE 11-34T |
Chain | SRAM 8spd | SRAM 8spd |
Brakes | TEKTRO HD-M286 Short Reach Levers 140mm Rotors | TEKTRO HD-M286 Short Reach Levers 140mm Rotors |
Rims | DD32 | DD32 |
|---|---|---|
Front Hub | CNC Machined Alloy Hub Body Sealed Bearings Quick Release | CNC Machined Alloy Hub Body Sealed Bearings Quick Release |
Rear Hub | CNC Machined Alloy Hub Body Sealed Bearings Quick Release | CNC Machined Alloy Hub Body Sealed Bearings Quick Release |
Tires | High-volume Kenda Booster 2.4” | Kenda Booster 24x2.4" |