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

YAMAHA BT1100

1063cc Petrol Class 2
86.0%
first-time pass rate
8.0%
failed outright
13,461
median miles at test
6,749
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2025

The BT1100's first-time pass rate has fallen 8.7 points since 2005, 94.1% to 85.4%.

79%88%97%2005: 94.1% pass (34 tests)2006: 90.4% pass (281 tests)2007: 85.4% pass (371 tests)2008: 85.4% pass (472 tests)2009: 85.9% pass (483 tests)2010: 84.9% pass (465 tests)2011: 87.1% pass (448 tests)2012: 88.0% pass (425 tests)2013: 86.0% pass (408 tests)2014: 84.0% pass (405 tests)2015: 82.6% pass (367 tests)2016: 84.8% pass (363 tests)2017: 85.5% pass (352 tests)2018: 86.6% pass (247 tests)2019: 82.3% pass (243 tests)2020: 86.0% pass (215 tests)2021: 86.9% pass (260 tests)2022: 88.6% pass (263 tests)2023: 88.5% pass (269 tests)2024: 84.9% pass (186 tests)2025: 85.4% pass (192 tests)20052025

Pass rate by mileage

how the BT1100's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage BT1100 passes first time 89.0% of the time; by 50k that's 79.5%.

78%84%91%0k: 89.0% pass (2,418 tests)10k: 86.4% pass (2,211 tests)20k: 82.7% pass (1,130 tests)30k: 83.7% pass (503 tests)40k: 82.2% pass (276 tests)50k: 79.5% pass (83 tests)0k30k50k

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 BT1100

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
313 33.3 0.8×
lighting and signalling
180 19.1 0.5×
tyres and wheels
134 14.3 0.9×
lamps and reflectors
91 9.7 0.6×
steering and suspension
88 9.4 0.4×
tyres
40 4.3 0.7×
reg plates and vin
35 3.7 0.7×
suspension
32 3.4 0.5×
fuel and exhaust
14 1.5 0.3×
steering
13 1.4 0.4×

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 BT1100 beats 2 of its 4 closest rivals (BMW R1200, BMW R1150, TRIUMPH SPRINT).

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 BT1100.

Pass rate by registration year

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

Best year to buy used: 2006 (88.1% pass). Weakest: 2005 (85.5%).

85%87%89%2002: 85.8% pass (1,839 tests)2003: 85.8% pass (1,643 tests)2004: 86.0% pass (1,390 tests)2005: 85.5% pass (1,189 tests)2006: 88.1% pass (270 tests)2007: 88.0% pass (300 tests)200220052007

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.

YAMAHA BT1100 FAQ

answers computed from the data above · terms in the glossary

Is the YAMAHA BT1100 reliable?

The YAMAHA BT1100 is about average for its class: 86.0% of its 6,749 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2196 of 5426 models.

What does a BT1100 fail its MOT on most?

brakes — 33% of all defects recorded against failed BT1100 tests.

What is the best year of BT1100 to buy used?

By first-time pass rate, 2006-registered examples do best (88.1%) and 2005 worst (85.5%). Condition and history still trump the year.

How many miles will a BT1100 last?

The median BT1100 shows 13,461 miles at test, and examples around 50k miles still pass 79.5% of the time — mileage alone rarely kills one.