Twostroke AL 20
A 20″ aluminum frame mountain youth bike with mid-range components and hydraulic disc brakes.
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MSRP | $739 |
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Weight | 20.3 lbs |
Frame | Aluminum |
Suspension | Rigid |
Fork | Aluminum |
Wheels | 20″ Aluminum |
Drivetrain | 1 × 8 |
Groupset | X4 |
Brakes | Hydraulic Disc |
For This Bike
Feb 2022 · By
A hardtail on test at GRAN FONDO? That's right. We couldn't leave the BMC Twostroke 01 ONE – the pioneer of a new hardtail generation – out of our concept group test of gravel and mountain bikes. Find out how versatile it really is here.
High level of traction, comfort and safety
Very good efficiency on rough surfaces
Wide gear range and clean look of the SRAM GX Eagle AXS drivetrain
Brake performance and lack of dropper unnecessarily limits range of uses
With lots of seat post exposed, the rear bobs excessively in many situations
Aug 2020
The new BMC carbon hardtails get a much needed modern geo and feature update...could this be a teaser of high end mountain bikes to come?
Aug 2020
The BMC lineup has been shifting towards XC for the past few years. The longest-travel bike in their catalog (without a motor) is the 120-millimeter Speedfox. But the kind of XC they’re shifting towards is not the XC of 10 years ago. They are front and center on the bandwagon that’s pushing more aggressive geometry…
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 |
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Fork | Twostroke AL 20" Lightweight Aluminium with Powder Coat Finish, 140mm Post Mount, 9X100mm QR |
Bottom Bracket | BSA, threaded |
Stem | BMC 40mm Length ± 6 Angle |
Handlebar | SDG Slater Handlebar 650mm Wide 20mm Rise 19mm Bar Ends 31.8mm Clamp. |
Saddle | SDG Fly Jr |
Seatpost | Alloy 27.2mm Type: Rigid |
Rear Derailleur | SRAM X4 Medium Cage |
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Crank | Lightweight Forged Alloy Cranks 32T 1x Specific Narrow Wide Chainring 127mm |
Shifters | SRAM X4 8Spd Trigger |
Cassette | SUNRACE 11-34T |
Chain | SRAM 8spd |
Brakes | TEKTRO HD-M286 Short Reach Levers 140mm Rotors Type: Hydraulic Disc |
Rims | DD32 |
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Front Hub | CNC Machined Alloy Hub Body Sealed Bearings Quick Release |
Rear Hub | CNC Machined Alloy Hub Body Sealed Bearings Quick Release |
Tires | High-volume Kenda Booster 2.4” |
Last updated September 6
Not listed for 584 days