Pass rate over time
The R100's first-time pass rate has risen 5.7 points since 2005, 86.6% to 92.3%.
Pass rate by mileage
A low-mileage R100 passes first time 86.8% of the time; by 50k that's 86.6%.
First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.
What fails on a R100
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| lighting and signalling |
|
1,049 | 32.9 | 0.7× |
| brakes |
|
731 | 22.9 | 0.5× |
| steering and suspension |
|
518 | 16.3 | 0.6× |
| tyres and wheels |
|
275 | 8.6 | 0.5× |
| lamps and reflectors |
|
242 | 7.6 | 0.4× |
| fuel and exhaust |
|
137 | 4.3 | 0.7× |
| body and structure |
|
62 | 1.9 | 0.5× |
| structure and attachments |
|
61 | 1.9 | 0.3× |
| reg plates and vin |
|
61 | 1.9 | 0.4× |
| driving controls |
|
51 | 1.6 | 0.9× |
Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.
How rivals compare
On first-time pass rate the R100 beats 2 of its 4 closest rivals (BMW R1200, BMW R1150, TRIUMPH SPRINT).
Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the R100.
Pass rate by registration year
Best year to buy used: 1997 (92.5% pass). Weakest: 1976 (81.0%).
First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.
BMW R100 FAQ
Is the BMW R100 reliable?
The BMW R100 is more reliable than average for its class: 87.0% of its 23,125 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1910 of 5426 models.
What does a R100 fail its MOT on most?
lighting and signalling — 33% of all defects recorded against failed R100 tests.
What is the best year of R100 to buy used?
By first-time pass rate, 1997-registered examples do best (92.5%) and 1976 worst (81.0%). Condition and history still trump the year.
How many miles will a R100 last?
The median R100 shows 42,485 miles at test, and examples around 50k miles still pass 86.6% of the time — mileage alone rarely kills one.