BMX buying guide
You want to buy a BMX bike but aren't sure which size fits your height? With the KHEbikes size guide you'll quickly find the right category – whether for kids, teens or adults.
Which BMX size matches your height?
BMX sizes are given in inches and directly correspond to rider height. Find the right category here:
For 20 inch BMX bikes, the top tube length is key for the perfect fit:
20" frame from approx. 4'7", 20.6" from approx. 4'11", 21.25" for tall riders from approx. 6'1".
Go to our 20 inch models here:
Still unsure about the size or which bike to choose? Our KHEbikes Support Team will be happy to help you anytime.
Why a 12-inch BMX from KHEbikes is the best choice for kids
12 inch BMX balance bikes are the perfect entry into the world of BMX – specially developed for children from around 80 cm (2'7") tall (approx. ages 2–4). Unlike traditional kids' bikes with stabilisers, balance bikes encourage balance, coordination and an active riding feel right from the start. At KHEbikes, we offer particularly lightweight and durable aluminium frames – perfect for small hands and a child’s first contact with a bike.
Thanks to the typical BMX look, the models don’t look like toys, but like real little freestyle bikes. This not only makes riding more fun but also motivates children to practise. Perfect for first rides in the backyard, at the playground or on the driveway. Our 12 inch BMX bikes offer an ideal transition to the next size – for example, a 14 inch BMX with pedals – depending on your child’s development.
Frequently asked questions about 12 inch BMX balance bikes
How heavy is a 12 inch BMX?
Our models weigh just 2.9 kg (6.4 lbs) – ideal for small riders and easy to carry.
At what age is a BMX balance bike useful?
From around 2 years, as soon as a child can stand and walk securely – body height of at least 80 cm (2'7") is important.
What’s better: stabilisers or balance bike?
Balance bikes promote balance and make the later transition to a pedal bike much easier.
How long can a child ride a 12 inch bike?
Depending on development, up to a height of around 95–100 cm (3'1"–3'3"). After that, we recommend switching to 14 inch.
Tips for parents: choosing the right first BMX
The key is to choose a bike that is as lightweight and stable as possible, with the right seat height and easy handling. Look for a low step-in and safe grips. A BMX helmet is essential – as are proper clothes and gloves. To ensure long-term enjoyment, also check out our BMX accessories such as stands, pads or stickers.
If you want to introduce your child to tricks later on, starting with a BMX brand like KHE makes sense – it ensures high quality from day one. Many of our customers start with a 12 or 14 inch model and stay loyal to KHEbikes for years – right up to the Pro Bikes.
BMX basics – why it’s smart to start early
Riding BMX strengthens motor skills, reactions and self-confidence. Children learn to balance, steer through curves and assess obstacles – all while having fun. After just a few weeks, coordination and control noticeably improve. Those who start early will later feel more confident when learning tricks or jumps.
At KHEbikes, you benefit from over 35 years of experience – as Germany’s first BMX brand, we know what matters when it comes to kids’ bikes. Direct from the manufacturer, no middlemen, with personal service and free returns.
Discover your 12 inch BMX balance bike now – for the perfect start to BMX riding!
Google Reviews
147 Reviews
22/09/2023
My son is thrilled with the design of his BMX bike. After I had trouble assembling it (especially the brakes), I contacted KHEbikes. Absolutely fantastic, friendly, and fast service, which solved the problem! I'm truly thrilled and can only recommend KHEbikes! 5 stars ⭐️⭐️⭐️⭐️⭐️
09/01/2025
My previous review was worse. The reason for this is that I've encountered a lot of poor providers in the past, and so I simply share my negative experiences. I was contacted immediately after my first review, which I personally thought was really great. It immediately showed that the customer is their top priority. A big thumbs up for that.
29/12/2024
Great service, fast delivery, no problem exchanging. Top company!
04/09/2024
Great bikes at fair prices and great customer service!
02/08/2024
Very pleasant contact, I'm very impressed with the staff. The purchase process is easy, and the description is accurate. The order arrived very quickly, but unfortunately, there was some shipping damage, but it was replaced without any major problems.
16/02/2024
Very friendly and excellent support. @KHEbikes - thank you very much
21/12/2023
Thanks to excellent advice over the phone, we were able to order the right spare parts for our son's BMX bike. They assured us of prompt shipping, so he was able to happily use his bike again the following week. Many thanks to Mr. Stubenrauch for the great advice!
20/08/2021
Over the years, we've had nothing but positive experiences with their products and service! Unfortunately, no race bikes or parts, which would make the product range perfect. Highly recommended!
07/12/2023
Very friendly contact, excellent advice. Even a question about the assembly of the BMX bike I purchased was answered the same day (Sunday!). That's how you retain customers long-term. I certainly won't have ordered the last bike from you. 😊 Thank you very much.
28/11/2023
Beautiful, robust bikes and absolutely top-notch customer service. Very helpful both by phone and email, and there's a solution for every issue! It's great to still have such great and positive shopping experiences every now and then. Thank you, dear KHEbikes team!
03/01/2025
21/09/2023
Very quick, uncomplicated help. My contact, Mr. Göring, was very nice.
21/09/2023
Fast, competent, and friendly. Best service
16/09/2023
the attention is good even if you have a problem they support you so that everything goes well
18/04/2023
Despite the remote diagnosis, we received excellent advice. After a few emails and photos back and forth, the problem with the bike was identified, and we were able to fix it ourselves. Our son is incredibly happy to be able to ride a BMX again. Now that's what I call customer service! Very friendly, dedicated, and competent!
06/04/2023
Top customer service, super clear homepage :)
27/01/2023
Top-notch advice! Always happy to come back!
12/01/2023
Super fast delivery, great customer service, and very satisfied with the BMX. Thank you very much!
03/01/2023
Very friendly and very helpful. I contacted them via email and received a prompt response with good advice and a purchase recommendation. I'd be happy to come back.