BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ YAMAHA/DIVERSION
Model report · 2005–2025

YAMAHA DIVERSION

599cc Petrol Class 2
78.0%
first-time pass rate
14.3%
failed outright
29,271
median miles at test
5,147
MOT tests, 2005–2025

Pass rate over time

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

The DIVERSION's first-time pass rate has fallen 8.4 points since 2005, 87.8% to 79.4%.

69%80%91%2005: 87.8% pass (82 tests)2006: 80.7% pass (409 tests)2007: 77.9% pass (375 tests)2008: 77.1% pass (340 tests)2009: 73.4% pass (334 tests)2010: 76.6% pass (321 tests)2011: 76.0% pass (312 tests)2012: 78.7% pass (329 tests)2013: 73.7% pass (354 tests)2014: 77.2% pass (347 tests)2015: 80.4% pass (326 tests)2016: 79.8% pass (272 tests)2017: 78.5% pass (233 tests)2018: 86.9% pass (168 tests)2019: 79.2% pass (183 tests)2020: 73.2% pass (123 tests)2021: 77.3% pass (154 tests)2022: 81.3% pass (150 tests)2023: 73.1% pass (134 tests)2024: 79.8% pass (94 tests)2025: 79.4% pass (107 tests)20052025

Pass rate by mileage

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

A low-mileage DIVERSION passes first time 88.5% of the time; by 50k that's 74.6%.

72%82%91%0k: 88.5% pass (460 tests)10k: 82.1% pass (1,058 tests)20k: 77.1% pass (1,154 tests)30k: 75.0% pass (1,141 tests)40k: 74.7% pass (592 tests)50k: 74.6% pass (319 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 DIVERSION

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
380 25.2 1.3×
steering and suspension
358 23.7 1.7×
lighting and signalling
244 16.2 1.0×
tyres and wheels
145 9.6 1.2×
drive system
84 5.6 1.7×
lamps and reflectors
82 5.4 0.7×
fuel and exhaust
77 5.1 1.7×
suspension
68 4.5 1.4×
structure and attachments
39 2.6 0.9×
tyres
32 2.1 0.9×

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 DIVERSION beats 1 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 DIVERSION.

Pass rate by registration year

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

Best year to buy used: 2009 (91.7% pass). Weakest: 1991 (69.6%).

65%81%96%1991: 69.6% pass (115 tests)1992: 76.3% pass (469 tests)1993: 73.3% pass (550 tests)1994: 73.3% pass (569 tests)1995: 80.4% pass (1,035 tests)1996: 78.5% pass (957 tests)1997: 79.0% pass (749 tests)1998: 81.0% pass (174 tests)2009: 91.7% pass (121 tests)2010: 84.1% pass (252 tests)199119962010

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 DIVERSION FAQ

answers computed from the data above · terms in the glossary

Is the YAMAHA DIVERSION reliable?

The YAMAHA DIVERSION is less reliable than average for its class: 78.0% of its 5,147 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #3914 of 5426 models.

What does a DIVERSION fail its MOT on most?

brakes — 25% of all defects recorded against failed DIVERSION tests.

What is the best year of DIVERSION to buy used?

By first-time pass rate, 2009-registered examples do best (91.7%) and 1991 worst (69.6%). Condition and history still trump the year.

How many miles will a DIVERSION last?

The median DIVERSION shows 29,271 miles at test, and examples around 50k miles still pass 74.6% of the time — mileage alone rarely kills one.