KSR Moto GRS

125cc Petrol Class 1

#5161 of 5426 overall #2 of 3 KSR Motos #598 of 734 commuter bikes

61.5%

first-time pass rate

28.3%

failed outright

8,270

median miles at test

1,625

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2018–2025

The GRS's first-time pass rate has risen 3.2 points since 2018, 60.0% to 63.2%.

Pass rate by mileage

how the GRS's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage GRS passes first time 66.0% of the time; by 20k that's 54.5%.

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 GRS

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lamps and reflectors	454	28.1	10.5×
brakes	354	21.9	3.1×
structure and attachments	292	18.1	17.0×
steering	191	11.8	23.5×
suspension	178	11	10.5×
tyres	99	6.1	6.5×
Identification of the vehicle	18	1.1	4.5×
audible warning (Horn)	16	1	5.4×
wheels	8	0.5	7.2×
lighting and signalling	7	0.4	0.1×

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

same type, similar capacity, high test volume

On first-time pass rate the GRS beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).

YAMAHA YBR 125 71.0% pass · 125k tests HONDA CG125 72.2% pass · 89.3k tests HONDA CBF125 73.3% pass · 84.4k tests GILERA RUNNER 70.8% pass · 69.9k 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 GRS.

Pass rate by registration year

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

Best year to buy used: 2018 (69.1% pass). Weakest: 2015 (57.9%).

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.

KSR Moto GRS FAQ

answers computed from the data above · terms in the glossary

Is the KSR Moto GRS reliable?

The KSR Moto GRS is less reliable than average for its class: 61.5% of its 1,625 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5161 of 5426 models.

What does a GRS fail its MOT on most?

lamps and reflectors — 28% of all defects recorded against failed GRS tests.

What is the best year of GRS to buy used?

By first-time pass rate, 2018-registered examples do best (69.1%) and 2015 worst (57.9%). Condition and history still trump the year.

How many miles will a GRS last?

The median GRS shows 8,270 miles at test, and examples around 20k miles still pass 54.5% of the time — mileage alone rarely kills one.