BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

BMW 650

650cc Petrol Class 2
#2411 of 5426 overall #88 of 109 BMWs #1507 of 2787 other bikes
85.3%
first-time pass rate
9.9%
failed outright
25,026
median miles at test
353
MOT tests, 2005–2025

Pass rate by mileage

how the 650's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage 650 passes first time 90.4% of the time; by 50k that's 74.3%.

71%82%94%0k: 90.4% pass (73 tests)10k: 86.4% pass (59 tests)20k: 87.5% pass (88 tests)30k: 88.4% pass (43 tests)40k: 75.0% pass (36 tests)50k: 74.3% pass (35 tests)0k30k50k

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 650

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
brakes
19 24.7
steering and suspension
19 24.7
lighting and signalling
15 19.5
tyres and wheels
7 9.1
lamps and reflectors
5 6.5
drive system
4 5.2
body and structure
2 2.6
suspension
2 2.6
tyres
2 2.6
fuel and exhaust
2 2.6

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the 650 beats 3 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).

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 650.

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 1994 (80.7% pass). Weakest: 1994 (80.7%).

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.