BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ TRIUMPH/THUNDERBIRD ABS 1700
Model report · 2005–2025

TRIUMPH THUNDERBIRD ABS 1700

1700cc Petrol Class 2
88.8%
first-time pass rate
6.7%
failed outright
10,235
median miles at test
511
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2013–2025

The THUNDERBIRD ABS 1700's first-time pass rate has fallen 5.9 points since 2013, 93.8% to 87.9%.

80%89%98%2013: 93.8% pass (32 tests)2014: 89.1% pass (46 tests)2015: 88.2% pass (51 tests)2016: 89.8% pass (49 tests)2017: 88.0% pass (50 tests)2018: 94.7% pass (38 tests)2019: 92.1% pass (38 tests)2021: 83.0% pass (47 tests)2022: 87.2% pass (39 tests)2023: 91.9% pass (37 tests)2025: 87.9% pass (33 tests)20132025

Pass rate by mileage

how the THUNDERBIRD ABS 1700's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage THUNDERBIRD ABS 1700 passes first time 89.6% of the time; by 20k that's 85.0%.

84%87%91%0k: 89.6% pass (250 tests)10k: 89.4% pass (170 tests)20k: 85.0% pass (60 tests)0k10k20k

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 THUNDERBIRD ABS 1700

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
21 34.4 0.8×
lamps and reflectors
15 24.6 1.1×
tyres and wheels
9 14.8 0.8×
lighting and signalling
3 4.9 0.1×
fuel and exhaust
3 4.9 0.8×
Identification of the vehicle
3 4.9 2.5×
tyres
3 4.9 0.9×
suspension
2 3.3 0.5×
reg plates and vin
1 1.6 0.3×
steering
1 1.6 0.5×

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 THUNDERBIRD ABS 1700 beats 2 of its 4 closest rivals (HARLEY-DAVIDSON FLSTF, HARLEY-DAVIDSON FLSTC, HARLEY-DAVIDSON XL1200C).

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 THUNDERBIRD ABS 1700.

Pass rate by registration year

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

Best year to buy used: 2010 (88.8% pass). Weakest: 2011 (88.5%).

88%89%90%2010: 88.8% pass (349 tests)2011: 88.5% pass (156 tests)20102011

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 THUNDERBIRD ABS 1700 FAQ

answers computed from the data above · terms in the glossary

Is the TRIUMPH THUNDERBIRD ABS 1700 reliable?

The TRIUMPH THUNDERBIRD ABS 1700 is more reliable than average for its class: 88.8% of its 511 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1332 of 5426 models.

What does a THUNDERBIRD ABS 1700 fail its MOT on most?

brakes — 34% of all defects recorded against failed THUNDERBIRD ABS 1700 tests.

How many miles will a THUNDERBIRD ABS 1700 last?

The median THUNDERBIRD ABS 1700 shows 10,235 miles at test, and examples around 20k miles still pass 85.0% of the time — mileage alone rarely kills one.