125cc motorbike insurance cost UK 2026

What does it cost to insure a 125cc in 2026?

A 125cc is the most popular entry rung onto powered two-wheels in the UK — ridable at 17 on a CBT, or from 16 on an A1 licence — and its insurance reflects that new-rider profile. The median 125cc premium is around £586, but the market average is dragged up by the large share of learners and teenagers on these bikes: a fresh-CBT 17-year-old commonly pays £1,400–£1,800, whereas a settled rider over 25 pays a fraction of that. Unlike a car, a 125cc rarely justifies stripping back to third-party-only cover — comprehensive is frequently the same price or cheaper. This page focuses purely on 125cc costs; for larger bikes, scooters and full-licence machines see our pillar guide to motorbike insurance cost in the UK for 2026. Here is how the typical 125cc premium breaks down by rider age and experience:

Cover tiers and how to cut a 125cc premium

There are three cover levels, and on a 125cc the cheapest name is not always the cheapest price. It pays to quote all three:

• Third party only (TPO) — the legal minimum; covers damage you cause to others but nothing to your own bike. Often not the cheapest, because insurers associate TPO-only riders with higher risk.
• Third party fire & theft (TPFT) — adds fire and theft of your bike; frequently the cheapest option overall for a 125cc, averaging around £241 on smaller machines.
• Comprehensive — adds accidental damage to your own bike and rider benefits; on many 125s it costs the same as or less than third party, so it is usually the best value.

Beyond cover level, these legitimate levers make the biggest difference to a 125cc quote:

1. Pass your full licence — moving off a CBT to the A1/A2 test removes the learner loading, one of the largest single savings for young riders.
2. Choose a commuter, not a sports 125 — a Honda CB125F, Yamaha YBR125 or Honda CG125 sits in a far lower insurance group than a Yamaha YZF-R125 or KTM RC125, cutting a third or more off the premium.
3. Garage it and add approved security — a locked garage or driveway, a Thatcham-approved alarm/immobiliser, a chain and ground anchor and a GPS tracker can each cut 5–30%. Street-parked bikes cost roughly 1.5–2× as much.
4. Build a no-claims bonus — each claim-free year compounds; by your mid-20s with full NCB a commuter 125 often drops to £250–£400.
5. Give realistic, low mileage — 125s are usually short-commute bikes; an accurate low annual mileage lowers the risk price.
6. Consider a black box / restricted policy — young-rider telematics schemes reward safe riding and can meaningfully undercut standard cover for under-21s.

For the broader picture — bigger engines, scooters, and how a full licence changes pricing — see the motorbike insurance cost pillar guide.

125cc motorbike insurance FAQs