Average time to size up: 15 months
In stock · free delivery in 2–4 days · free returns
Most children ride this size for around 15 months. When knees start hitting handlebars, exchange to the 20" in two minutes - free at the end of your plan, and never more than a small fair adjustment before it.
This is how long children typically ride this size before they've grown enough to need the next one - averaged across all our families on the 16".
Every child grows differently, so yours might be a few months either side. It's a guide for choosing your plan, not a deadline: the 12-month plan fits most families, and if they grow faster you exchange early with a small fair adjustment; grow slower and you simply roll on month to month once your plan ends.
When they're ready for the next size, exchange takes two minutes from your account and the 20" arrives before the 16" goes back.
Exchange free, whenever you're ready. New bike delivered first, old one collected free.
No fee - your months are simply re-billed at the rate matching the time you kept the bike. Typically £14–£23, never more than finishing your plan.
Every bike stays a minimum of 6 months. Wrong size? Free swap within 30 days.
You only ever pay the rate for the time you kept the bike.
Read the full exchanges pagePick the right size with our finder, choose a 6, 12 or 18-month plan (longer is cheaper), and we deliver - free, 95% assembled.
Treat it like your own. Repairs and normal wear are included. Add Laka insurance for theft and accidental damage.
Outgrown it? Swap to the next size from your account - free at the end of your plan, and never more than a small fair adjustment before it. The new bike arrives before the old one goes back.
Done with bikes? Return for free after your 6-month minimum. You only ever pay the rate for the time you kept it.