Islabikes Beinn 20 Large – Best Lightweight Kids Bike | Review & Specifications
The Islabikes Beinn 20 Large is a lightweight aluminium bike built for children aged 6 to 8 years. With 7-speed gears and quality brakes, it handles roads, trails, and everything in between. Islabikes stopped selling new bikes in 2023, so it is now only available secondhand.
Full Technical Specifications
| Shifter | Twist Grip (SRAM Gripshifter) |
| Fork | Rigid Chromoly Steel |
| Tires | Islabikes Mixte 20" x 1.4 (35-406) Folding |
| Brake Levers | Islabikes Aluminium Micro Levers (small hand-friendly) |
| Colours | Teal, Orange, Pink, Green |
| Chainring | 32T (Single Chainring) |
| Inside Leg | 52–62 cm |
| Crankset | Islabikes Aluminium 127mm |
| Saddle | Islabikes Custom Child Saddle |
| Weight | 7.5 kg |
| Manufacturing Years | 2019–2023 |
| Extra Features | Mudguard Eyes, Bottle Cage Mount, Rack Mount, Quick Release Wheels |
| Brakes | Aluminium Mini V-Brakes |
| Frame Material | 7005 T6 Heat-Treated Aluminium |
| Gear System | 7 Speed — SRAM X4 / Sunrace 11-34T Cassette |
| Rider Height | 120–135 cm |
| Wheels | Islabikes Aluminium, 20-hole |
| Age Range | 6–8 years |
Size
20 inch (Large) — Frame: 11" / Rider Height: 120–135 cm / Inside Leg: 52–62 cm
Weight
7.5 kg
Brakes
Aluminium Mini V-Brakes / Islabikes Aluminium Micro Levers
Body Type
Lightweight Hybrid / Multi-Purpose Kids Bike
Color
Teal, Orange, Pink (Green and Red also available in various years)
About This Bike
Islabikes Beinn 20 Large is a little different in the world of children's bikes. 7.5 kg weight — it's really low for a bike of this size. The child can lift it himself, handle it himself. The frame is made of 7005 T6 aluminum, simple to look at but quite strong. With 7 speed gears and SRAM Gripshifter, both uphill and downhill can be handled well. Whether going to school or riding on the trail — this bike works for both.
Safety and Design
The brake levers are made for small hands. They work well even if you don't press hard, there is no problem even if you stop suddenly. Both the saddle and the handlebars can be easily adjusted, meaning that even if the child is a little older, you don't have to throw the bike away. There is space for mudguards and racks on the frame, so going to school on rainy days is no problem. Since it has quick release wheels, if a puncture occurs, you can fix it while standing on the road.
Compare with Competitors
Why Should You Buy This Bike?
Simple — this bike is light, durable, and really suitable for children. Many bikes look good but are heavy, and children don't want to ride them. This one doesn't have that problem. 7-speed gears mean it won't get stuck even on hills, and good brakes mean it will be safe. It's no longer available new, but it's available second-hand at a good price — so you won't regret buying it.
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Brake and Wheel Control
Islabikes has designed its own brakes. Mini V-Brake and Micro Lever — both of which give children good control. The wheels have quick releases, and if they get a puncture, they can be opened without tools. The mixed tires provide good grip on smooth, unpaved roads as well as paved roads. The Chromoly fork is a little stiff, but sufficient for riders of this age.
Frequently Asked Questions
For ages 6 to 8. Fits well if the height is 120–135 cm.
Only 7.5 kg. It's really light for a bike of this size, the child can lift it by himself.
No, Islabikes closed in 2023. Now only available second hand on eBay or Gumtree.
Usually between £150 and £350, depending on condition.
No. The SRAM Twist Grip Shifter is very easy, kids learn quickly.
Yes. Mudguards, racks, bottle cages can be fitted - good for everyday school runs.
Large is for slightly older kids, inseam 52–62 cm. Small is for inseams 47–57 cm.
No, there is a Rigid Chromoly fork. That's enough for this age.
Yes, unisex design. Available in several colors including Teal, Orange, Pink.
Not at all. Quick release wheels and simple drivetrain mean it can be easily serviced at home.
Available Colors
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SK Jasib is a dedicated cycle enthusiast and writer creating engaging content on cycling fitness, bike maintenance, riding techniques, and cycling gear. With hands-on experience and a passion for the cycling lifestyle, the mission is to inform, inspire, and support cyclists in making every ride safer, smoother, and more enjoyable.
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