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

TRIUMPH TR6R

650cc Petrol Class 2
89.7%
first-time pass rate
3.3%
failed outright
11,294
median miles at test
790
MOT tests, 2005–2025

Pass rate over time

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

The TR6R's first-time pass rate has risen 9.0 points since 2006, 82.0% to 91.0%.

78%88%97%2006: 82.0% pass (50 tests)2007: 89.4% pass (47 tests)2008: 94.2% pass (52 tests)2009: 88.2% pass (51 tests)2010: 87.5% pass (48 tests)2011: 81.3% pass (64 tests)2012: 89.1% pass (46 tests)2013: 91.9% pass (62 tests)2014: 93.9% pass (66 tests)2015: 92.5% pass (93 tests)2016: 88.5% pass (78 tests)2017: 91.0% pass (78 tests)20062017

Pass rate by mileage

how the TR6R's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage TR6R passes first time 87.3% of the time; by 30k that's 89.9%.

85%93%100%0k: 87.3% pass (361 tests)10k: 91.2% pass (148 tests)20k: 97.7% pass (87 tests)30k: 89.9% pass (69 tests)0k20k30k

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 TR6R

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
23 41.1 0.5×
steering and suspension
15 26.8 0.4×
body and structure
5 8.9 1.1×
tyres and wheels
4 7.1 0.2×
fuel and exhaust
3 5.4 0.5×
reg plates and vin
3 5.4 0.7×
brakes
2 3.6 0.1×
Items Not Tested
1 1.8 1.4×

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 TR6R 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 TR6R.

Pass rate by registration year

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

Best year to buy used: 1967 (95.5% pass). Weakest: 1972 (83.9%).

82%90%98%1961: 91.4% pass (58 tests)1967: 95.5% pass (66 tests)1969: 90.1% pass (91 tests)1970: 91.7% pass (108 tests)1971: 91.5% pass (259 tests)1972: 83.9% pass (93 tests)1973: 85.0% pass (60 tests)196119701973

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 TR6R FAQ

answers computed from the data above · terms in the glossary

Is the TRIUMPH TR6R reliable?

The TRIUMPH TR6R is more reliable than average for its class: 89.7% of its 790 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1047 of 5426 models.

What does a TR6R fail its MOT on most?

lighting and signalling — 41% of all defects recorded against failed TR6R tests.

What is the best year of TR6R to buy used?

By first-time pass rate, 1967-registered examples do best (95.5%) and 1972 worst (83.9%). Condition and history still trump the year.

How many miles will a TR6R last?

The median TR6R shows 11,294 miles at test, and examples around 30k miles still pass 89.9% of the time — mileage alone rarely kills one.