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Stolen Frog Bikes: UK Frame-Number Check (Free, Instant)

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Quick answer

Frog frame numbers are stamped on the underside of the bottom bracket. Frog is the UK's leading lightweight kids and junior brand, and because the bikes hold value strongly they are a frequent theft target, so run the number through Cyclesite's free lookup for an instant UK check against police records, stolen-bike databases and community reports.

Where Frog stamps the frame number

On the underside of the bottom bracket shell on the vast majority of Frog kids and junior bikes. Frog bikes hold their value unusually well second-hand, so the frame number and a receipt matter as much here as on an adult bike.

Frog on the UK used market

Frog dominates the premium lightweight kids market, with the numbered sizes (Frog 44, 48, 53 and so on) and the Road and Hybrid juniors changing hands quickly as children grow. Strong resale value makes them attractive to thieves, so always check the frame number and ask for proof of purchase before buying.

FAQs

Where is the frame number on a Frog bike?
On the underside of the bottom bracket shell on the vast majority of Frog models. Turn the bike over to read it.
Are Frog bikes often stolen?
Frog kids bikes hold their value strongly, which makes them a recognised theft and resale target, so always check the frame number before buying a used one.
What if a Frog frame number is missing?
Walk away. A missing or ground-off frame number is a strong sign the identifier was removed deliberately.

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