BIKERELIABILITY Reg check
League table/ SUPERBYKE/RMR 125
Model report · 2005–2025

SUPERBYKE RMR 125

125cc Petrol Class 1
#5360 of 5428 overall #4 of 7 SUPERBYKEs #703 of 734 commuter bikes
53.0%
first-time pass rate
36.2%
failed outright
10,224
median miles at test
1,633
MOT tests, 2005–2025
-18.6pp
vs expected · age & mileage

The pass rate is the MOT first-time pass: a roadworthiness check of the items an MOT covers (brakes, lights, tyres, steering, structure, emissions), not a full mechanical inspection of engine or gearbox internals. It is a reliability signal, not a complete measure of mechanical reliability. What this measures.

“vs expected” adjusts for age, mileage and test class, so a cherished classic and a hard-used commuter are compared fairly. How this works.

Pass rate over time

first-time pass rate by test year · 2011–2022

The RMR 125's first-time pass rate has fallen 3.8 points since 2011, 56.9% to 53.1%.

43%54%65%2011: 56.9% pass (188 tests)2012: 54.9% pass (213 tests)2013: 51.5% pass (237 tests)2014: 48.6% pass (218 tests)2015: 50.3% pass (177 tests)2016: 51.1% pass (176 tests)2017: 47.4% pass (114 tests)2018: 52.0% pass (50 tests)2019: 56.6% pass (53 tests)2020: 46.7% pass (45 tests)2021: 61.5% pass (39 tests)2022: 53.1% pass (32 tests)20112022

Pass rate by mileage

how the RMR 125's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage RMR 125 passes first time 55.8% of the time; by 30k that's 39.5%.

36%48%59%0k: 55.8% pass (790 tests)10k: 50.1% pass (555 tests)20k: 53.5% pass (198 tests)30k: 39.5% pass (43 tests)0k20k30k

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 RMR 125

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
655 28.3 5.2×
steering and suspension
478 20.6 5.6×
brakes
459 19.8 4.0×
drive system
191 8.2 11.5×
tyres and wheels
149 6.4 3.8×
lamps and reflectors
123 5.3 2.2×
structure and attachments
76 3.3 4.4×
body and structure
72 3.1 6.6×
fuel and exhaust
58 2.5 3.8×
suspension
55 2.4 3.2×

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 RMR 125 beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).

YAMAHA YBR 125 71.0% pass · 125k tests Compare head-to-head →
HONDA CG125 72.2% pass · 89.3k tests Compare head-to-head →
HONDA CBF125 73.3% pass · 84.4k tests Compare head-to-head →
GILERA RUNNER 70.8% pass · 69.9k tests Compare head-to-head →

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 RMR 125.

Compare with any bike

rival not listed above? pick any model to see it head-to-head with the RMR 125

More SUPERBYKE models

other SUPERBYKE bikes ranked by MOT pass rate
SUPERBYKE RBP 125 47.6% pass · 462 tests
SUPERBYKE RMR 55.7% pass · 345 tests
SUPERBYKE RSR 125 52.1% pass · 263 tests
SUPERBYKE POWERBAND 50 54.5% pass · 255 tests
SUPERBYKE SB 125 61.2% pass · 232 tests
SUPERBYKE RMX 125 46.3% pass · 218 tests

See all SUPERBYKE models →

Pass rate by registration year

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

Best year to buy used: 2007 (61.7% pass). Weakest: 2010 (49.2%).

47%55%64%2007: 61.7% pass (141 tests)2008: 52.7% pass (882 tests)2009: 53.0% pass (249 tests)2010: 49.2% pass (183 tests)2012: 60.3% pass (58 tests)2013: 50.9% pass (55 tests)200720102013

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.

SUPERBYKE RMR 125 FAQ

answers computed from the data above · terms in the glossary

Is the SUPERBYKE RMR 125 reliable?

The SUPERBYKE RMR 125 is less reliable than average for its class: 53.0% of its 1,633 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5360 of 5428 models.

What does a RMR 125 fail its MOT on most?

lighting and signalling — 28% of all defects recorded against failed RMR 125 tests.

What is the best year of RMR 125 to buy used?

By first-time pass rate, 2007-registered examples do best (61.7%) and 2010 worst (49.2%). Condition and history still trump the year.

How many miles will a RMR 125 last?

The median RMR 125 shows 10,224 miles at test, and examples around 30k miles still pass 39.5% of the time — mileage alone rarely kills one.

Embed this bike

Free to embed on your site, blog or forum — a live Superbyke RMR 125 reliability card that stays up to date and links back here. More on the free API page.