BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

TRIUMPH TR6P

650cc Petrol Class 2
92.5%
first-time pass rate
2.7%
failed outright
12,957
median miles at test
641
MOT tests, 2005–2025

Pass rate over time

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

The TR6P's first-time pass rate has fallen 6.3 points since 2006, 98.0% to 91.7%.

86%93%100%2006: 98.0% pass (50 tests)2007: 90.7% pass (54 tests)2008: 92.0% pass (50 tests)2009: 92.6% pass (54 tests)2010: 93.2% pass (44 tests)2011: 95.9% pass (49 tests)2012: 91.8% pass (49 tests)2013: 91.5% pass (47 tests)2014: 90.0% pass (50 tests)2015: 88.0% pass (50 tests)2016: 92.6% pass (54 tests)2017: 91.7% pass (48 tests)20062017

Pass rate by mileage

how the TR6P's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage TR6P passes first time 92.7% of the time; by 50k that's 89.5%.

88%92%96%0k: 92.7% pass (275 tests)10k: 93.7% pass (95 tests)20k: 90.3% pass (103 tests)30k: 94.6% pass (56 tests)50k: 89.5% pass (38 tests)0k20k50k

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 TR6P

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
steering and suspension
14 36.8 0.5×
brakes
11 28.9 0.2×
lighting and signalling
7 18.4 0.2×
tyres and wheels
2 5.3 0.2×
fuel and exhaust
1 2.6 0.2×
reg plates and vin
1 2.6 0.3×
driving controls
1 2.6 0.7×
body and structure
1 2.6 0.3×

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 TR6P beats 4 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).

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 TR6P.

Pass rate by registration year

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

Best year to buy used: 1967 (100.0% pass). Weakest: 1971 (87.7%).

85%93%100%1967: 100.0% pass (70 tests)1969: 94.2% pass (225 tests)1970: 90.4% pass (94 tests)1971: 87.7% pass (138 tests)196719701971

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 TR6P FAQ

answers computed from the data above · terms in the glossary

Is the TRIUMPH TR6P reliable?

The TRIUMPH TR6P is more reliable than average for its class: 92.5% of its 641 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #381 of 5426 models.

What does a TR6P fail its MOT on most?

steering and suspension — 37% of all defects recorded against failed TR6P tests.

What is the best year of TR6P to buy used?

By first-time pass rate, 1967-registered examples do best (100.0%) and 1971 worst (87.7%). Condition and history still trump the year.

How many miles will a TR6P last?

The median TR6P shows 12,957 miles at test, and examples around 50k miles still pass 89.5% of the time — mileage alone rarely kills one.