APRILIA RS125R

125cc Petrol Class 1

#5242 of 5426 overall #116 of 128 APRILIAs #639 of 734 commuter bikes

59.1%

first-time pass rate

30.7%

failed outright

15,340

median miles at test

2,726

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2025

The RS125R's first-time pass rate has risen 17.2 points since 2005, 54.2% to 71.4%.

Pass rate by mileage

how the RS125R's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage RS125R passes first time 71.0% of the time; by 40k that's 40.5%.

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 RS125R

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lighting and signalling	775	28.9	4.2×
steering and suspension	656	24.5	5.1×
brakes	475	17.7	2.8×
drive system	202	7.5	7.7×
body and structure	178	6.6	9.9×
tyres and wheels	159	5.9	2.5×
fuel and exhaust	85	3.2	3.8×
lamps and reflectors	70	2.6	1.1×
structure and attachments	41	1.5	1.4×
reg plates and vin	37	1.4	2.2×

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 RS125R 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 RS125R.

Pass rate by registration year

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

Best year to buy used: 1995 (64.4% pass). Weakest: 1998 (51.7%).

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.

APRILIA RS125R FAQ

answers computed from the data above · terms in the glossary

Is the APRILIA RS125R reliable?

The APRILIA RS125R is less reliable than average for its class: 59.1% of its 2,726 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5242 of 5426 models.

What does a RS125R fail its MOT on most?

lighting and signalling — 29% of all defects recorded against failed RS125R tests.

What is the best year of RS125R to buy used?

By first-time pass rate, 1995-registered examples do best (64.4%) and 1998 worst (51.7%). Condition and history still trump the year.

How many miles will a RS125R last?

The median RS125R shows 15,340 miles at test, and examples around 40k miles still pass 40.5% of the time — mileage alone rarely kills one.