SUZUKI RG125F

124cc Petrol Class 1

#5057 of 5426 overall #672 of 680 SUZUKIs #540 of 734 commuter bikes

64.0%

first-time pass rate

27.4%

failed outright

22,719

median miles at test

508

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2012

The RG125F's first-time pass rate has risen 1.6 points since 2006, 52.9% to 54.5%.

Pass rate by mileage

how the RG125F's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage RG125F passes first time 73.8% of the time; by 30k that's 65.3%.

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 RG125F

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lighting and signalling	145	26.9	3.6×
brakes	129	23.9	3.9×
steering and suspension	106	19.6	4.2×
drive system	49	9.1	8.5×
body and structure	40	7.4	10.3×
tyres and wheels	31	5.7	2.4×
fuel and exhaust	19	3.5	4.1×
lamps and reflectors	10	1.9	0.8×
reg plates and vin	8	1.5	2.7×
suspension	3	0.6	0.8×

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 RG125F 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 RG125F.

Pass rate by registration year

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

Best year to buy used: 1995 (68.1% pass). Weakest: 1993 (57.3%).

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.

SUZUKI RG125F FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI RG125F reliable?

The SUZUKI RG125F is less reliable than average for its class: 64.0% of its 508 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5057 of 5426 models.

What does a RG125F fail its MOT on most?

lighting and signalling — 27% of all defects recorded against failed RG125F tests.

What is the best year of RG125F to buy used?

By first-time pass rate, 1995-registered examples do best (68.1%) and 1993 worst (57.3%). Condition and history still trump the year.

How many miles will a RG125F last?

The median RG125F shows 22,719 miles at test, and examples around 30k miles still pass 65.3% of the time — mileage alone rarely kills one.