YAMAHA RXS100

98cc Petrol Class 1

#4851 of 5426 overall #380 of 409 YAMAHAs #441 of 734 commuter bikes

68.0%

first-time pass rate

21.4%

failed outright

22,180

median miles at test

6,955

MOT tests, 2005–2025

Pass rate over time

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

The RXS100's first-time pass rate has risen 3.5 points since 2005, 70.2% to 73.7%.

Pass rate by mileage

how the RXS100's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage RXS100 passes first time 77.8% of the time; by 50k that's 75.0%.

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 RXS100

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lighting and signalling	2,675	48.4	3.7×
steering and suspension	897	16.2	2.8×
brakes	568	10.3	1.3×
tyres and wheels	470	8.5	2.5×
drive system	356	6.4	5.2×
lamps and reflectors	214	3.9	1.0×
body and structure	110	2	3.0×
fuel and exhaust	104	1.9	1.8×
structure and attachments	67	1.2	0.9×
reg plates and vin	61	1.1	1.4×

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 RXS100 beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA C90, HONDA CG125).

YAMAHA YBR 125 71.0% pass · 125k tests HONDA C90 79.3% pass · 92.8k tests HONDA CG125 72.2% pass · 89.3k tests HONDA CBF125 73.3% pass · 84.4k 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 RXS100.

Pass rate by registration year

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

Best year to buy used: 1983 (84.2% pass). Weakest: 1995 (63.1%).

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.

YAMAHA RXS100 FAQ

answers computed from the data above · terms in the glossary

Is the YAMAHA RXS100 reliable?

The YAMAHA RXS100 is less reliable than average for its class: 68.0% of its 6,955 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4851 of 5426 models.

What does a RXS100 fail its MOT on most?

lighting and signalling — 48% of all defects recorded against failed RXS100 tests.

What is the best year of RXS100 to buy used?

By first-time pass rate, 1983-registered examples do best (84.2%) and 1995 worst (63.1%). Condition and history still trump the year.

How many miles will a RXS100 last?

The median RXS100 shows 22,180 miles at test, and examples around 50k miles still pass 75.0% of the time — mileage alone rarely kills one.