Is your child growing so fast too? A bike that's too small isn't just uncomfortable, it can also be unsafe. In this article, we'll explain exactly how to tell when it's time for a bigger size and how to do it without any hassle.
As a parent, you naturally don't want your child riding a bike that's too small. That's not only heavy to ride, it's also bad for their posture and can even be dangerous in traffic. But switching to a "growing bike" too early isn't a good idea either, as your child will have less control over the handlebars.
But how do you know when the exact moment is to switch? Look for these 3 signs.
1. The knee check
This is the easiest clue. Have your child sit on the saddle and pedal to the highest point. If their knees are uncomfortably close to the handlebars, or if they have to twist their legs unnaturally outward to avoid hitting them, then the frame has become too tight. This not only makes cycling uncomfortable, but also means they could bump their knees against the handlebars in a turn, potentially causing falls.
2. The seatpost limit
Have you raised the saddle a few times? Then take a good look at the seatpost. Each seatpost has a marking indicating the maximum height. If you're leaning against it (or over it), and your child's legs are still bent too much while riding, then the bike is definitely too small. A good rule of thumb: when the pedal is in its lowest position, your child's leg should be almost straight (with a slight bend in the knee).
3. Feet on the ground (but how much?)
Beginning cyclists find it helpful to be able to place both feet flat on the ground. This inspires confidence. But for experienced cyclists, this isn't necessary. If your child is a pro, it's sufficient if they can touch the ground with their toes or the balls of their feet while sitting on the saddle. Can they stand flat on the ground with bent knees? Then they're sitting too low and losing pedaling power.
Size chart: What inch size do I need?
While height is the determining factor, clothing size often provides a good indication. Here's a simple overview:
- 12-inch children's bicycles: 95-105 cm (clothing size 98-104)
- 16-inch children's bicycles: 105–120 cm (clothing size 104–116)
- 20-inch children's bicycles: 115–130 cm (clothing size 116–128)
- 24-inch bicycles: 130–150 cm (clothing size 128–152)
- 26-inch bicycles: 145+ cm (clothing size 152+)
Or go to our complet children's bicycle size chart .
The hassle of getting a new bike
A growth spurt usually means diving into the shed for photos, placing an ad on Marktplaats, having strangers at your door to negotiate, and then searching for a new, safe bike that actually fits. A time-consuming task that few parents are looking forward to.
The BikeFlip solution: Growing without worries
At BikeFlip, we believe a growth spurt shouldn't be stressful. Has your child outgrown their bike?
- You choose a larger size from over 300 children's bicycles available.
- You decide when we can come by to deliver the bicycle.
- We will bring the new bike, adjust it and take the old one back.
This way, your child will always ride a safe bike that fits perfectly, without you having to deal with rusty screws or buy expensive new bikes. Plus, you'll directly contribute to a circular economy, because the returned bike will be refurbished for the next family.
Not sure about the right size?
Feel free to stop by a store or contact us. We'd be happy to help you get your child back on the road happily and safely!
