Beinn 20 Large / Age 6+

Rated 4.94 out of 5 based on 17 customer ratings
(17 customer reviews)


SOLD OUT – Sorry, there will not be more available.

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Designed for riders with a minimum inseam of 20 ½ inches and height of 47 inches. Please reference our size guide or call us at 503 954 2410 to ensure you get the perfect sized bike for your child.

For delivery information, click here.


The perfectly proportioned and very lightweight Beinn 20 large can be built up as a stylish hybrid, mountain or road bike.

  • Weight: 17 lbs, 14 oz (including pedals)
  • Lightweight 7005 T6 aluminum frame, proportional geometry
  • Chromoly forks
  • 7-speed, wide-ratio Sram X4 gears with light action shifter
  • Short-reach brake levers with V-brakes give powerful, light action braking with small hands
  • Lightweight wheels with quick release hubs
  • Multi-surface, lightweight tires with puncture resistance and reflective sidewalls
  • Exclusive, child-specific component set
  • Each bike comes with a complimentary spare tube and a quality hex wrench set
  • Each Beinn comes equipped with a bell

Sizing for your Beinn 20 Large

Designed for riders 6 years and older with a minimum inside leg of 20 ½  inches.

Click for information on how to measure up for an Islabike.

With the correct size bike, your child will develop their cycling skills quickly, easily and safely while being more comfortable on their bike. Not only does this help increase confidence and boost their self-esteem, but, best of all, it means they can start riding straight away.

For expert sizing advice please call our customer service team at 503 954 2410.

Customize your Beinn 20 Large


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Why Islabikes?

Key features

Full specification

This bike has been designed to be ridden by kids on smooth paved, grassy, or dirt surfaces with moderate gradients. It is not intended for any kind of jumping.

Max weight: Combined rider and luggage 88 lbs, 3 oz.

17 reviews for Beinn 20 Large / Age 6+

  1. Rated 5 out of 5


    I purchased the large 20″ Beinn for my 6 year old son at Christmas time and after a solid 4 months of use – I can honestly say this is the best kids bike that I’ve ever seen. It’s clear they started with a clean sheet design and set out to build a kids bike that is focused on both fit and performance. The pedals are closer together and shorter for the size of the child which makes a huge difference on how easy the bike is to ride. The handle bars are at just the right location and width. Most 20″ bikes don’t offer gears and this one is impressive with a 7 speed grip shifter that is easy for my son to use – and appears to operate better through the whole gear range than my daughter’s 24″ Trek with a similar gear design. Overall, the fit and finish is excellent and it’s all the little things like rugged handle bar grips, a water bottle holder and a deluxe kick stand that make it truly exceptional.

    If all that above doesn’t convince you to invest in one of these, then hopefully this story will. Approximately 2 years ago when my son was 4 we got him a cheap Schwinn 16″ bike and he struggled with it at first but eventually mastered riding it. He was a tough kid and he pedaled his heart out on longer 5-10 mile family bike rides but would complain of his legs getting tired. I had never heard of Islabikes until I started doing some research on the best kids bikes. What immediately jumped out at me about the Islabike Beinn was that it was a 20″ bike with gears and it only weighed 17.3 lbs, which is crazy light. When you lift it up, it’s an order of magnitude lighter than the comparable Trek 20″. So I went back an weighed his little 16″ Schwinn and was shocked to see it weigh in at 29 lbs. I went back and looked up my son’s growth chart and honestly feel bad we bought a 29 lb bike for a 35 lb kid! When my son gets on the Islabike Beinn – he goes like the wind and never complains now about the duration of a ride and that weight ratio is down to about 1:3.

  2. Rated 5 out of 5

    James Allen

    After much research, I bought a pink Beinn 20 for my tall five-year-old daughter and both she and I love it. The bike is thoughtfully designed for kids. What does this mean in practice? That your child will love cycling as much as you do. That she will want to ride instead of watch cartoons. That you can share adventures together.

    I was somewhat concerned about the lack of training wheels, but she learned to ride without them on our first outing—this says something about the bike. It’s simply easier for kids to control than clunkier models, and her previous experience with a balance bike made the transition simple.

    Effectively shifting gears takes a bit more wrist and arm strength than she has right now, but this doesn’t pose a problem for us, since keeping it in a middle gear works well. I would buy this bike again if it were only a single-speed, but her muscles will develop with her thirst for different and longer rides. And it’s good to have the option of gears; the simple shifting method is intuitive and she already understands it well.

    Make a child happy and healthy, and put a smile on both of your faces. Well done, Islabikes.

  3. Rated 5 out of 5


    Terrific bike. I am so happy I bought this bike! My son had been having a hard time learning to ride before he got this bike. My son got the hang of balancing on the islabike immediately, and learned to pedal soon after that. He loves to ride now! Worth the price.

  4. Rated 5 out of 5


    Just got a Beinn 20 Large for my 6.5 year old son. He upgraded from the CNOC 16 which passed on to his little sister. Based on a few days of riding I give this bike 5 stars. The light weight is great especially for a smaller kid like my son. The components are all solid choices (and much better than the junk you see on most kids bikes). The looks of the bike are fantastic too. It has already got lots of comments, which of course has made my son super proud and excited about the new bike. People who care about bikes immediately see that this is a real bike, not a toy.

    The shifting is quite light action grip shift. At 6 my son has strength to shift without too much problem. (Figuring out WHEN to shift is still a wok in progress.)

    While the Islabikes are expensive by kid bike standards they are worth every penny if you want your kids to love biking.

  5. Rated 5 out of 5


    Just adding another comment that these are the best kids’ bikes I’ve come across, We got our son’s older brother a bike a few years ago that is a really nice bike by a top-tier company. He liked it but it was so heavy that he had a tough time riding more than a few miles at a time.

    After doing some additional research we bought the Beinn 20 large for our 6 year old, and it’s amazing how much difference it makes. He was a decent but by no means overly strong rider before, and has now gone on multiple rides of 15+ miles, finishing each ride fired up to keep extending it for additional mileage.

    In terms of factors beyond the light weight: I’m honestly no expert on bike parts or design, but we live right outside Boulder. When we’ve been stopped for rest breaks we have already had 5 or 6 people stop to ask about the bike, with several spontaneous comments about the way the dimensions of the bike fit him amazingly well. So all in all, I’d say that it’s one of the best purchases we’ve made.

  6. Rated 5 out of 5


    I got this bike for my daughter almost two years ago and she loves it. I love the bikes so much we just got her the Beinn 26 and this one will be handed down to my son.

    Her previous bike was a 16″ Trek bike and it weighed 27 pounds with wide cranks and okay handling. Her Beinn bike is so nimble and she has even raced cyclocross on it and the parts are good quality. The wheels are still true after a season of cyclocross racing and riding on dirt. I really like that the shifters are grip shift since that is so easy for kids to understand.

    I guess my best recommendation for the bike is that I bought the next size up!

  7. Rated 5 out of 5


    We are Islabike fans! I have purchased a total of three bikes over the past few years for my two kids. We moved to Montana last year, so unlike Portland, we haven’t seen other Islabike consumers. I recently took my son’s bike to the local bike shop for a tuneup. After all was said and done, the mechanic wanted to know where I found such a great bike. She said it was the nicest kids bike she has ever worked on and that she couldn’t believe how incredibly light it is. Even the Specialized Bikes they sell and rent for kids are not as nice and light as his Islabike (but we already knew that). Even my son’s friends line up to use it because they can feel the difference between their bikes and his. We will continue to purchase Islabikes at every stage as they grow.

  8. Rated 5 out of 5


    This bike gets my highest recommendation. Just buy one! You’ll see what an enormous improvement it is over the bikes you typically find in your LBS. My kids loves it. His riding improved immediately when he got it because of the geometry, light-weight frame, and smoother bearings. He went from lurching around to holding a steady line with ease.

  9. Rated 5 out of 5


    I think its important to know my son who has special needs can ride and handle islabikes beautifully. Its a challenge to find a solid bike for children with low muscle tone, this is our 3rd islabike and happy to say its worth the money…

  10. Rated 5 out of 5


    After seeing my daughter’s Islabikes Cnoc 16 in action for the past 18 months, I had high expectations for this bike; I can honestly say those expectations have been exceeded. We went with the larger frame and upgraded to mountain bike tires, since she’s a pretty aggressive trail rider, and she’s *really* stoked on her new, larger, geared bike! Seeing how big it was out of the box and getting the front wheel and peddles on, I was honestly a little concerned that she would struggle at first with the size jump, but within a few minutes she was riding and maneuvering it with zero issues. I’m also very impressed with the twist gear shift design and function… The overall quality of design on these bikes just can’t be overstated!

  11. Rated 5 out of 5


    I bought my daughter one over a year ago, just came back to look for next size. Wow, price for the same bike went up $110! Maybe this brand got more popular lately. It was a great bike, my daughter enjoys riding it. We are ready for the next size.

  12. Rated 5 out of 5


    My wife and I recently purchased a new Beinn 20 large for daughter. Her previous bike was a 16 inch Trek, with coaster brakes. She is quite tall for a six year old so finding a bike which would correctly fit her while be flexible for future growth was key. I can hands down say this is probably one of the best purchases we have made for her. She already knew how to ride her previous bike so moving to this bike was a huge step up in comfort, control and additional confidence. I personally compete in competitive MTB races and cyclo-cross races and wanted to find a bike with which she could potentially do the same (within the kids races).

    The quality of this bike, the components, frame, wheels, rims and brakes are of the highest caliber. The fact that the bike is lightweight is also a huge factor. She is now able to “ride with Daddy” on pretty much anything she wants. Plus if we need to purchase MTB tires and another set of rims with cassette we can through ISLABIKES.

    I realize that the cost of the bikes is more than one would pay at a local bike shop. But at the end of the day, you get what you pay for. You have a lifetime customer here ISLABIKES.

    Thank you again for making such a high quality product


  13. Rated 5 out of 5

    Elizabeth (verified owner)

    I can’t add anything to these reviews… they say it all.

    My son turned 7 in the middle of this summer, during which he rode this bike over 300 miles on many bike overnights. The bike has literally given my son the gift of bicycling adventure. He yells out, “Mommy I love THIS!” as he zooms ahead of me down the bike path.

    If you like to ride, and you want your kid to like it too – are you really going to nickel and dime that?

  14. Rated 5 out of 5

    Marko Bodor

    My son, who just turned 9 and is on the small side, just took his Beinn Large to the BMX course and ran laps around the other kids. Unfortunately, the club wants him to get a regular BMX bike and he doesn’t understand why. He loves his Beinn. It’s light, has his name on it, and fits perfectly. We’ve done lots of trail riding on it as well of course.

  15. Rated 5 out of 5

    Lisa Rhone

    My 6 year old learned to ride a two wheeler on a Big Box Store special. It was frustrating and he struggled with both the weight of the bike and the stiff hand brakes. I put the Bienn 20 together while he was at school, and we took it for our first try as soon as he got home. He instantly loved it – “This bike doesn’t have a slow, only FAST, mom”. The brakes are super easy for him to use, and he’s learning to shift with no difficulty. It’s a nice looking bike too.

  16. Rated 5 out of 5


    We bought this bike for our six year old daughter just before her seventh birthday. She had a Cnoc before and even on that bike was slow to give up training wheels. When she did, she started to really love riding, so that we were worried that the jump up to a larger Beinn would cause her problems. It really didn’t. She jumped on the new Beinn and started pedaling away.

    There are a lot of alternatives to Islabikes now, and many are cheaper. We stayed with this company because our experience with the Cnoc was so wonderful. Now she takes her Beinn every day to and from school, even though there is a long hill to climb. Seeing that makes me so happy, and I credit a lot of it to Islabikes. We will definitely stay with this brand for her next bicycle. (It helps that I got nearly 70% of the purchase price of the Cnoc back when I resold it on Craigslist.)

  17. Rated 4 out of 5


    My 6 year old son loves this bike. He rode over 300 miles this summer, mostly on trails and BMX tracks, and is now able to ride black diamonds on it. The frame geometry is very good, and the weight is impressive. Before this he had a Woom bike, which he liked, but it put him in a much less aggressive position. Since getting this bike he is much more adventurous in his riding. After we put some 1.9″ MTB/BMX tires on he can really go everywhere.

    The only reason I am giving it 4 stars instead of 5 is that the components have not stood up to the kind of use that kids give it. This bike only costs $550, so I can understand that they are not going to put a $100 derailleur on it. However, maybe something can be done to put on components that stand up to a bit more abuse. After a couple months the shifter broke, and a month later the derailleur also broke. When I replaced the shifter I put a rapidfire style thumb shifter on, and my son started to use his gears a lot more. If you think about it, it is quite challenging for kids to ride one handed. If a trail is a bit bumpy they get nervous moving their hand over to a grip shift, and they cannot change gears and steer at the same time. Once I made it so he could shift with his thumbs he can do it at any time.

    • Islabikes

      Thank you for the feedback on the Beinn – it’s exciting to hear about kids who are tackling tough trails on our bikes! With regards to the components, we have chosen to invest in the parts that our customers would have trouble finding on their own – our handlebars, crank arms, brake levers, and grips are all our own designs and molds. The expense incurred there does mean that we don’t opt for the top of the line parts elsewhere. We have found the SRAM shifter and derailleur combination to stand up to the abuses and uses of most of our users but will certainly be on the lookout for more robust options that are also lightweight. With regards to the shifting – you raise a good point! We opted for the gripshift due to the fact that a child can use their whole hand to shift which is stronger than using a single finger. The fact that a child has to move their hand in order to use it is worth considering – we will be sure to feed this to our product team and tack it into account as we continue to improve our bikes.

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