NORTON CLASSIC

588cc Petrol Class 2

#153 of 5426 overall #5 of 34 NORTONs #96 of 2787 other bikes

94.1%

first-time pass rate

2.4%

failed outright

10,333

median miles at test

826

MOT tests, 2005–2025

Pass rate over time

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

The CLASSIC's first-time pass rate has fallen 3.8 points since 2006, 95.7% to 91.9%.

Pass rate by mileage

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

A low-mileage CLASSIC passes first time 93.8% of the time; by 40k that's 96.8%.

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 CLASSIC

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lighting and signalling	21	56.8	0.4×
steering and suspension	6	16.2	0.1×
brakes	5	13.5	0.1×
tyres and wheels	2	5.4	0.1×
fuel and exhaust	1	2.7	0.2×
body and structure	1	2.7	0.3×
audible warning (Horn)	1	2.7	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 CLASSIC beats 4 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).

KAWASAKI ZX-6R 78.1% pass · 174k tests SUZUKI GSF600 77.3% pass · 143k tests YAMAHA FZS600 82.6% pass · 137k tests SUZUKI SV650S 80.6% pass · 84.6k 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 CLASSIC.

Pass rate by registration year

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

Best year to buy used: 1961 (96.2% pass). Weakest: 1971 (92.6%).

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.

NORTON CLASSIC FAQ

answers computed from the data above · terms in the glossary

Is the NORTON CLASSIC reliable?

The NORTON CLASSIC is more reliable than average for its class: 94.1% of its 826 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #153 of 5426 models.

What does a CLASSIC fail its MOT on most?

lighting and signalling — 57% of all defects recorded against failed CLASSIC tests.

What is the best year of CLASSIC to buy used?

By first-time pass rate, 1961-registered examples do best (96.2%) and 1971 worst (92.6%). Condition and history still trump the year.

How many miles will a CLASSIC last?

The median CLASSIC shows 10,333 miles at test, and examples around 40k miles still pass 96.8% of the time — mileage alone rarely kills one.