SACHS ROADSTER 650

644cc Petrol Class 2

#3199 of 5426 overall #2 of 11 SACHSs #2032 of 2787 other bikes

81.9%

first-time pass rate

7.4%

failed outright

11,942

median miles at test

365

MOT tests, 2005–2025

Pass rate by mileage

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

A low-mileage ROADSTER 650 passes first time 84.8% of the time; by 20k that's 81.8%.

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 ROADSTER 650

failure defects by component group · advisories excluded

Component group	Defects	% of defects
brakes	14	34.1
steering and suspension	8	19.5
lighting and signalling	6	14.6
lamps and reflectors	4	9.8
drive system	3	7.3
tyres and wheels	2	4.9
reg plates and vin	1	2.4
body and structure	1	2.4
structure and attachments	1	2.4
tyres	1	2.4

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 ROADSTER 650 beats 2 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).

KAWASAKI ZX-6R 78.1% pass · 174k tests SUZUKI GSF600 77.3% pass · 143k tests YAMAHA FZS600 82.6% pass · 137k tests HONDA VFR800 FI 86.7% pass · 89.4k tests

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 ROADSTER 650.

Pass rate by registration year

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

Best year to buy used: 2004 (83.6% pass). Weakest: 2003 (77.0%).

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.