VELOCETTE VIPER

350cc Petrol Class 2

#197 of 5426 overall #6 of 13 VELOCETTEs #118 of 2787 other bikes

93.8%

first-time pass rate

1.6%

failed outright

14,468

median miles at test

1,943

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2018

The VIPER's first-time pass rate has risen 2.5 points since 2005, 97.5% to 100.0%.

Pass rate by mileage

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

A low-mileage VIPER passes first time 93.4% of the time; by 50k that's 94.3%.

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 VIPER

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lighting and signalling	20	42.6	0.2×
brakes	13	27.7	0.1×
steering and suspension	5	10.6	0.1×
tyres and wheels	5	10.6	0.1×
drive system	2	4.3	0.1×
driving controls	1	2.1	0.2×
body and structure	1	2.1	0.1×

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 VIPER beats 4 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 VIPER.

Pass rate by registration year

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

Best year to buy used: 1962 (98.8% pass). Weakest: 1957 (92.3%).

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.

VELOCETTE VIPER FAQ

answers computed from the data above · terms in the glossary

Is the VELOCETTE VIPER reliable?

The VELOCETTE VIPER is more reliable than average for its class: 93.8% of its 1,943 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #197 of 5426 models.

What does a VIPER fail its MOT on most?

lighting and signalling — 43% of all defects recorded against failed VIPER tests.

What is the best year of VIPER to buy used?

By first-time pass rate, 1962-registered examples do best (98.8%) and 1957 worst (92.3%). Condition and history still trump the year.

How many miles will a VIPER last?

The median VIPER shows 14,468 miles at test, and examples around 50k miles still pass 94.3% of the time — mileage alone rarely kills one.