
Choose from three carefully proportioned sizes
Our Cnoc bikes are available in three overlapping sizes, covering ages 3 - 6 years, so your child has a safe and comfortable fit from the start, combined with maximum growing room. Use the size chart below to find the best fit.
Islabikes Cnocs have been the first bike of choice for 20 years and still give a fantastic learning experience.
Our latest Cnocs feature a revised fit, giving young riders the benefits of a bigger wheelsize sooner, perfecting the legendary Islabikes experience.


Our Cnoc range are beautifully proportioned for children who are true beginners or eager to pedal having mastered a balance bike.
Of all of Isla Rowntree’s designs, her Cnoc learner bikes have made the biggest difference to young cyclists. Multiple interacting design details mean they are simply easier to learn on than anything else.

Important – The new Islabikes Cnocs have been re-sized to give each child the benefits of the biggest possible wheel size. If your child has tried an older Cnoc, the fit will be different to our current range. It is vital that you measure your child and use the size chart to select the correct model.
Age is a rough guide, but the physical size of your child will determine which Cnoc fits. Our minimums are absolute - your child must meet or exceed both measurements for a safe and comfortable fit. Don’t be tempted to “size up” for your child to “grow into” – they won’t be able to ride it.
Take the following two measurements.
Inside leg:
Height:
| Model name | Approx min age | Min inside leg | Max inside leg | Approx min height |
| Cnoc 14 | 3+ | 34cm | 42cm | 92cm |
| Cnoc 16 | 3+ | 38cm | 48cm | 98cm |
| Cnoc 18 | 4+ | 42cm | 52cm | 104cm |