TRIUMPH T100R

500cc Petrol Class 2

#587 of 5426 overall #40 of 175 TRIUMPHs #357 of 2787 other bikes

91.4%

first-time pass rate

1.9%

failed outright

8,656

median miles at test

629

MOT tests, 2005–2025

Pass rate over time

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

The T100R's first-time pass rate has risen 2.2 points since 2006, 92.2% to 94.4%.

Pass rate by mileage

how the T100R's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage T100R passes first time 91.6% of the time; by 20k that's 88.9%.

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 T100R

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lighting and signalling	8	38.1	0.2×
steering and suspension	6	28.6	0.2×
structure and attachments	2	9.5	0.2×
tyres and wheels	2	9.5	0.2×
drive system	1	4.8	0.2×
fuel and exhaust	1	4.8	0.2×
brakes	1	4.8	—

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 T100R 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 T100R.

Pass rate by registration year

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

Best year to buy used: 1973 (94.5% pass). Weakest: 1971 (88.3%).

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.

TRIUMPH T100R FAQ

answers computed from the data above · terms in the glossary

Is the TRIUMPH T100R reliable?

The TRIUMPH T100R is more reliable than average for its class: 91.4% of its 629 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #587 of 5426 models.

What does a T100R fail its MOT on most?

lighting and signalling — 38% of all defects recorded against failed T100R tests.

What is the best year of T100R to buy used?

By first-time pass rate, 1973-registered examples do best (94.5%) and 1971 worst (88.3%). Condition and history still trump the year.

How many miles will a T100R last?

The median T100R shows 8,656 miles at test, and examples around 20k miles still pass 88.9% of the time — mileage alone rarely kills one.