NORTON JUBILEE

250cc Petrol Class 2

#775 of 5426 overall #28 of 34 NORTONs #471 of 2787 other bikes

90.6%

first-time pass rate

6.0%

failed outright

15,021

median miles at test

298

MOT tests, 2005–2025

Pass rate by mileage

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

A low-mileage JUBILEE passes first time 90.7% of the time; by 20k that's 90.4%.

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 JUBILEE

failure defects by component group · advisories excluded

Component group	Defects	% of defects
steering and suspension	15	31.9
tyres and wheels	12	25.5
lighting and signalling	7	14.9
fuel and exhaust	5	10.6
driving controls	4	8.5
brakes	2	4.3
Items Not Tested	1	2.1
body and structure	1	2.1

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the JUBILEE beats 4 of its 4 closest rivals (YAMAHA YP250, YAMAHA WR250F, HONDA XR250).

YAMAHA YP250 82.5% pass · 12.4k tests YAMAHA WR250F 78.0% pass · 10.5k tests HONDA XR250 78.8% pass · 9,277 tests HONDA CBF250 84.9% pass · 7,536 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 JUBILEE.

Pass rate by registration year

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

Best year to buy used: 1961 (92.9% pass). Weakest: 1961 (92.9%).

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.