Yamaha DT125R Sm Reliability, MOT Pass Rate & Common Faults
Free Yamaha DT125R Sm car check
Is the Yamaha DT125R Sm reliable? We analysed 531 real MOT tests across 106 vehicles to find out.
Got a specific Yamaha DT125R Sm? Enter the reg for a free check:
The Yamaha DT125R Sm is above average for reliability based on real UK MOT data. Common problems include shock absorber seal failed and leaking oil, tyre tread depth is below minimum requirements of 1.0mm and brake pad(s) less than 1.5 mm thick. Here's everything you need to know before buying a used Yamaha DT125R Sm.
Yamaha DT125R Sm Number Plates
Number plates registered to a Yamaha DT125R Sm. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Yamaha DT125R Sm MOT Pass Rate by Year
How likely is a Yamaha DT125R Sm to pass its MOT? Here's the pass rate for each registration year, newest first.
Yamaha DT125R Sm Problems — What Goes Wrong?
The most common reasons a Yamaha DT125R Sm fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Yamaha DT125R Sm Mileage — What's Normal?
How many miles does a typical Yamaha DT125R Sm owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Yamaha DT125R Sm MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Yamaha DT125R Sm year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2007 | 135 | 76.3% | 9,054 | 18,009 | 23,703 |
| 2006 | 165 | 78.2% | 6,953 | 10,859 | 19,439 |
| 2005 | 150 | 75.3% | 9,645 | 13,717 | 20,928 |
Yamaha DT125R Sm Mileage Distribution
Total mileage recorded across all Yamaha DT125R Sm MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Yamaha DT125R Sm
Based on MOT pass rates across all registration years with sufficient test data.
78.2% MOT pass rate from 165 tests
75.3% MOT pass rate from 150 tests
The best year to buy a used Yamaha DT125R Sm is 2006, which has the highest MOT pass rate at 78.2% across 165 tests. The 2005 model year has the lowest pass rate at 75.3% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Yamaha DT125R Sm Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Yamaha DT125R Sm THIS CAR | 76.8% | 531 | 13,397 mi | 21 yrs |
| Yamaha Yzf R1 | 86.5% | 175,313 | 16,232 mi | 28 yrs |
| Yamaha FZS600 | 85% | 157,659 | 22,466 mi | 28 yrs |
| Yamaha XJR1300 | 88.8% | 107,128 | 16,836 mi | 27 yrs |
| Fiat Doblo 16V Multijet | 88% | 474 | 73,926 mi | — yrs |
Compared to the Yamaha Yzf R1 (86.5% pass rate) and the Yamaha FZS600 (85.0% pass rate), the Yamaha DT125R Sm trails behind on MOT reliability.
Found a Yamaha DT125R Sm you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Yamaha DT125R SmShould you buy a used Yamaha DT125R Sm?
The Yamaha DT125R Sm has an overall MOT pass rate of 76.8% across 531 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
The most common problems on the Yamaha DT125R Sm are shock absorber seal failed and leaking oil (9 recorded failures), tyre tread depth is below minimum requirements of 1.0mm (8), and brake pad(s) less than 1.5 mm thick (8). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.
A typical Yamaha DT125R Sm owner drives around 1,085 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
In terms of longevity, most Yamaha DT125R Sm models stay on UK roads for around 21 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.