SUZUKI SP370

368cc Petrol Class 2

#3666 of 5426 overall #500 of 680 SUZUKIs #2333 of 2787 other bikes

79.6%

first-time pass rate

10.0%

failed outright

14,720

median miles at test

599

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2017

The SP370's first-time pass rate has risen 2.6 points since 2006, 84.9% to 87.5%.

Pass rate by mileage

how the SP370's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage SP370 passes first time 83.9% of the time; by 20k that's 78.0%.

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 SP370

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lighting and signalling	68	45.3	1.6×
steering and suspension	32	21.3	1.1×
brakes	15	10	0.4×
drive system	13	8.7	2.1×
tyres and wheels	12	8	0.8×
fuel and exhaust	3	2	0.7×
structure and attachments	3	2	0.2×
lamps and reflectors	2	1.3	0.1×
Other	1	0.7	—
driving controls	1	0.7	0.7×

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 SP370 beats 1 of its 4 closest rivals (SUZUKI AN400, SUZUKI DR-Z400S, YAMAHA RD350).

SUZUKI AN400 86.2% pass · 27.1k tests SUZUKI DR-Z400S 80.4% pass · 26.8k tests YAMAHA RD350 86.3% pass · 19.6k tests KAWASAKI ZXR400 73.1% pass · 14.2k 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 SP370.

Pass rate by registration year

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

Best year to buy used: 1980 (90.1% pass). Weakest: 1979 (76.5%).

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 SP370 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI SP370 reliable?

The SUZUKI SP370 is less reliable than average for its class: 79.6% of its 599 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #3666 of 5426 models.

What does a SP370 fail its MOT on most?

lighting and signalling — 45% of all defects recorded against failed SP370 tests.

What is the best year of SP370 to buy used?

By first-time pass rate, 1980-registered examples do best (90.1%) and 1979 worst (76.5%). Condition and history still trump the year.

How many miles will a SP370 last?

The median SP370 shows 14,720 miles at test, and examples around 20k miles still pass 78.0% of the time — mileage alone rarely kills one.