Yamaha YZF-R125
Yamaha's race-styled 125 — same engine as the MT-125 wrapped in R-series sport bodywork. 14.7 PS, deltabox frame, clip-on bars, racy ergonomics. The default choice for 17-year-olds who want a proper sport bike experience before their A license. Drops on track days are inevitable; fairing panels are cheap.
- Engine
- 124 cc
- Power
- 14.7 PS
- Weight
- 144 kg
- Seat height
- 825 mm
- A2 licence
- —
Liquid-cooled DOHC single with VVA
wet
The short version
Forecourt score
Value 50 · Insurance 56 · Theft 35
The Yamaha YZF-R125 holds its value about as well as most bikes (around 30% lost over three years, against the 25-32% bike norm) and costs about average to insure (group 8). Theft risk is high.
A bike-specific blend of value retention, insurance and theft risk (weighted 40/35/25). Bikes carry no MOT reliability data, so reliability isn't scored. Higher is better.
Variant: YZF-R125
Engine
Petrol · 124cc
Power
14.7 ps
Torque
11.5 Nm
Weight
144 kg
Seat
825 mm
Transmission
6-speed manual
Economy
88 mpg
Volume YZF-R125. Same VVA 125 as MT-125 but in sport fairing, clip-ons, deltabox frame. 144 kg wet. 825mm seat — tall for a 125.
Tell us about the one you're looking at
Tidy and well looked-after for its age — the typical clean bike.
Estimated market value
£3,534
Range £3,181 – £3,887
HIGH CONFIDENCE
Holding value
Bikes hold value far better than cars — typical motorcycle 3-year depreciation is 25–32%, against cars' 40–50%. Some bikes (Hayabusa, Gold Wing, classic Z1000) actually appreciate in the 7–15 year zone as cult demand outstrips supply.
New
£5,299
At 5 years
£3,126
At 10 years
£1,987
Value loss by phase
Each band shows the share of original value lost during that window — not cumulative. Appreciation (green, marked +X% gained) is real for bikes that develop cult status.
UK new price by year
How we estimate this
These figures are specific to this model rather than a shared default, but they are indicative estimates and not yet derived from a recorded sample of UK sale prices. Bike residuals depend heavily on theft history, service-stamp count and crash-damage signatures. Figures assume a clean, fully-stamped example.
What it costs to own
Indicative running costs at 3,000 miles a year — the UK average from DfT travel and traffic statistics. Chain-drive bikes carry a chain/sprocket consumable line; tax (typically £25–£100/yr) and depreciation are excluded — see the section above for value retention.
3-year total
£2,038
Per year
£679
Per mile
£0.23
Service costs assume independent specialist labour and OE parts. Tyre intervals reflect typical UK road riding — track-day usage burns through rear tyres in <2,000 miles. Fuel uses the variant MPG at the current DESNZ pump price of £1.60/L (week commencing 03/08/2026). Electric bikes are costed from battery capacity and published range at the current domestic electricity price; where a bike has no published range we show no energy line rather than guess. Lower-mileage riders see proportionally lower totals; higher-mileage commuters pay roughly linearly more.
Estimated insurance
Group 8 of 17 (mid — mainstream) · Comprehensive · 5 yr NCB
Indicative annual comprehensive premiums for this bike. Bike insurance is far more sensitive to licence tier and rider age than cars — pick the combination closest to your circumstances.
Licence
Age
No-claims bonus
5 yearsRisk profile
Estimated annual premium · typical, age 30-39
£420/ year
Roughly £35 per month
Typical
Suburban postcode, 3+ years NCB, standard security (Thatcham chain + disc lock), no recent claims.| Age band | Lower risk | Typical | Higher risk |
|---|---|---|---|
| Age 17-21 | £693 | £924 | £1,294 |
| Age 22-29 | £425 | £567 | £794 |
| Age 30-39Selected | £315 | £420 | £588 |
| Age 40-49 | £277 | £370 | £517 |
| Age 50+ | £252 | £336 | £470 |
How we estimate this
Premiums combine licence tier, rider age, no-claims bonus and a risk-profile multiplier on top of a bike-specific baseline. Bike insurance is materially more sensitive to licence tier (CBT / A1 / A2 / A) than car insurance, and young riders pay considerably more than older riders even on the same machine. Always get individual quotes before buying.
Theft risk
Bike-specific · Met Police + insurance reporting
UK bike theft rates are an order of magnitude higher than car theft. Nakeds and supersports lose more to professional gangs; large adventure bikes and tourers are statistically much safer.
Theft risk score · 1 to 4
3/4High risk
High risk
Frequent theft target — appears regularly on UK police hot-lists, especially in London. Expect insurers to demand Thatcham chain + ground anchor + disc lock; tracker can knock 10–15% off premium.Theft hotspot postcodes
Postcode prefixes only; full London hot zone runs across E, N, NW, SE, SW, W boroughs depending on the model.
What this means for you
Sport 125s are theft magnets in London. Lightweight, easy to lift into a van. Thatcham chain + disc lock + ground anchor essential to keep insurance reasonable.
How we set this band
Bands derived from Met Police bike-theft reporting (most-stolen lists) cross-referenced with insurance industry underwriting data. Model + postcode are the two biggest factors in motorcycle theft risk in the UK, materially more than vehicle value.
What goes wrong
5 known issues · sorted by severity
Documented failure modes from UK owner forums, dealer service bulletins, and aggregated mechanic feedback. Mileages are approximate — different riders see different intervals depending on use and maintenance. Always address "high"-severity items before resale.
High severity
0
Medium
3
Low / cosmetic
2
| Severity | Part / issue | Cost |
|---|---|---|
| medium | Drop damage (fairings/levers/bars) Expected — buy aftermarket panels any | £200-400 |
| medium | Chain/sprocket wear 15-18k mi | £250 |
| medium | Cam chain tensioner (pre-2020) any | £200 |
| low | Fork seals 20k+ mi | £100 |
| low | Fairing tab cracks after drops | £40 epoxy repair |
How we score severity
High — strands the bike or causes consequential damage if left. Medium — service item that affects ride quality or risks failure. Low — cosmetic or minor inconvenience. Costs are independent-specialist UK rates for parts and labour together; main dealer prices typically run 30–50% higher.
Safety recalls
Manufacturers occasionally issue safety recalls to fix a fault free of charge. You can check whether the Yamaha YZF-R125, or your exact vehicle, has any outstanding recalls on the official DVSA service.
Check on GOV.UKOpens the Driver & Vehicle Standards Agency recall checker. Choose the make, model and year of manufacture — no registration needed.
Variant comparison
The default A1 sport bike. Cross-shop KTM RC 125 (sharper, harder ride), Aprilia RS 125 (sportiest, most fragile), Honda CBR125R (mellow, cheaper). YZF-R125 wins on engine refinement and parts availability.
Known issues
- Drop damage — replacement fairings £200-400
- Faster sprocket wear than MT-125 (sportier riding)
- Same cam chain tensioner pre-2020 (Yamaha fix)
- Fork seals at 20k+ mi (£100)
- Fairing tabs crack — common after drops
Strengths
- +Same VVA engine as MT-125 — punchy 125cc
- +Deltabox frame + USD forks — proper sport hardware
- +R-series styling — looks like a baby R1
- +Track-day friendly geometry
- +Strong used market — young riders buy them then move up
Watch-outs
- −Clip-on bars + low seat = uncomfortable for tall riders
- −Drops are common — replacement fairings £200-400
- −Sport tyres last 5-7k mi (more expensive than commuter rubber)
- −Same cam chain tensioner pre-2020 issue as MT-125
Related bikes
Common questions
Yamaha YZF-R125, answered from the data
- How much is a used Yamaha YZF-R125 worth?
- A 2023 Yamaha YZF-R125 in good condition with around 9,000 miles is worth roughly £3,550 (typical range £3,200–£3,900). Dealer asking prices sit higher than private sales, and a full service history, no crash damage and an unbroken theft record are what hold a bike at the top of its range.
- How quickly does the Yamaha YZF-R125 depreciate?
- The Yamaha YZF-R125 loses about 30% of its value over the first three years, against a 25–32% norm for bikes and 40–50% for cars. These figures are specific to this model rather than a shared default, though they remain indicative estimates rather than a measured sample of sale prices.
- Can you ride the Yamaha YZF-R125 on an A2 licence?
- The Yamaha YZF-R125 is an A1 machine, so it suits a 17-plus rider on an A1 licence and is also available to anyone with A2 or full A entitlement.
- How much does it cost to insure a Yamaha YZF-R125?
- Expect around £420 a year to insure a Yamaha YZF-R125, typically £330–£580. That assumes age 30, 3yrs NCB, suburban postcode. It sits in motorcycle insurance group 8 of 17. Bike premiums move far more on licence tier, rider age and postcode than car premiums do, so treat this as a starting point rather than a quote.
- What goes wrong on a used Yamaha YZF-R125?
- The wear and failure points we track for the Yamaha YZF-R125 are: drop damage (fairings/levers/bars) (any, £200-400); chain/sprocket wear (around 15-18k mi, £250); cam chain tensioner (pre-2020) (any, £200). We don't publish a reliability score for bikes — the MOT dataset behind our car scores doesn't support one at model level — so treat these as the specific things to inspect rather than a verdict. A full service history and a fresh MOT without advisories remain the best protection.
- What does a Yamaha YZF-R125 cost to run?
- Expect around 88 mpg, about £248 a year in fuel or energy, £220 for an annual service, £280 a pair for tyres every 6,000 miles, £250 for a chain and sprockets every 18,000 miles. Figures assume 3,000 miles a year, the UK average from DfT travel and traffic statistics, and current DESNZ pump prices. The cost-of-ownership table on the profile breaks this down per year and per mile.
- Is the Yamaha YZF-R125 likely to be stolen?
- The Yamaha YZF-R125 is a high theft target. Sport 125s are theft magnets in London. Lightweight, easy to lift into a van. Thatcham chain + disc lock + ground anchor essential to keep insurance reasonable. Theft is concentrated in E, N, SE, SW postcode areas. A Thatcham-approved chain and ground anchor, a disc lock and a tracker are what insurers look for, and secure overnight storage moves a premium more than almost anything else.
Answers are generated from this bike's Forecourt data — curated specifications, our valuation model and the week's DESNZ fuel and energy prices — and update with the weekly data refresh.