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BMC Twostroke AL 20 2022 - Kids Bike
The BMC Twostroke AL20 is a proper children's mountain bike that's fun and easy to ride. It features a lightweight aluminium frame, with a premium durable powder coating and a dedicated geometry to smaller riders. Featuring 20” wheels, an 8-speed SRAM groupset and TEKTRO brakes, with tailored ergonomics for a confidence inspired ride. Simple. Functional. Fun.
Key Features:
- Lightweight premium MTB frame is easy to ride
- All touch points are ergonomically designed for children
- Hydraulic disc brakes for confident speed control
- One-by 8 speed drivetrain for intuitive gear shifting
- One frame size with 20" wheels - suitable for kids aged 5-8 Years, 110-135cm
- The BMC Twostroke AL20 is available with 0% APR finance
Create. Ride. Explore.
Highlights:
- 20" Wheels
- Wide Range SRAM 1x8 Drivetrain
- Ergonomic SDG Cockpit and Saddle
- High-volume Kenda Booster 2.4” tires.
Double butted tubes for a lightweight frame with a distinctive and premium look.
TAILORED ERGONOMICS
Bars, levers, cranks and saddle are tailored for the ergonomics of young riders for a comfortable and custom-made ride.
DEDICATED GEOMETRY
Inspired by our MTB’s and adapted to smaller riders for intuitive and reliable riding.
POWDER COATING FINISH
A durable and ecological solution to withstand years of daily use.
CONTROL AND SAFETY
Hydraulic brakes and high volume tires provide control and safety on various surfaces with low rolling resistance.
TWOSTROKE AL 20 STICKER KITS
The bike can be designed to your own taste with the Twostroke AL 20 sticker kits.
Occasionally, without notice, manufacturers change product design and/or specifications.
Frame | Twostroke AL 20" Lightweight Aluminium |
Fork | Twostroke AL 20" Lightweight Aluminium with Powder Coat Finish |
Stem | BMC |
Bars | SDG Slater Handlebar, 650mm wide, 20mm rise, 19mm bar ends, 31.8mm clamp. |
Front Brake | Tektro HD-M286, short reach levers, 140mm rotors |
Rear Brake | Tektro HD-M286, short reach levers, 140mm rotors |
Brake Lever | Tektro HD-M286, short reach levers, 140mm rotors |
Rear Mech | SRAM X4, Medium Cage |
Shifters | Tektro HD-M286, short reach levers, 140mm rotors |
Speed | 1X8 |
Rims | DD32 |
Front Hub | CNC Machined Alloy Hub Body, Sealed Bearings, Quick Release |
Rear Hub | CNC Machined Alloy Hub Body, Sealed Bearings, Quick Release |
Front Tyre | Kenda Booster 20x2.4" |
Rear Tyre | Kenda Booster 20x2.4" |
Seat Post | Alloy 27.2mm |
Saddle | SDG Fly JR |
Chainset | Lightweight Forged Alloy Cranks, 32T 1x Specific Narrow Wide chainring, 127mm |
Chain | SRAM 8spd |
Cassette | Sunrace 11-34T, Black finish |
Junior Bike Size Chart
Approx. Age |
Height (cm) |
Type / Wheel Size |
1 - 4 |
77 – 105cm |
Balance |
2 - 4 |
85 – 105cm |
12" |
4 - 6 |
105 – 117cm |
14" |
5 - 7 |
112 – 125cm |
16” |
6 - 8 |
117 – 132cm |
18” |
7 - 10 |
125 – 136cm |
20” |
10+ |
136+cm |
24” |
Read our kids bike size guide for more information on kids bike sizing.
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