BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ KAWASAKI/ZX 636 C6F
Model report · 2005–2025

KAWASAKI ZX 636 C6F

636cc Petrol Class 2
79.8%
first-time pass rate
11.3%
failed outright
13,402
median miles at test
7,429
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2008–2025

The ZX 636 C6F's first-time pass rate has risen 3.2 points since 2008, 81.3% to 84.5%.

73%80%87%2008: 81.3% pass (48 tests)2009: 79.6% pass (722 tests)2010: 80.1% pass (684 tests)2011: 80.8% pass (650 tests)2012: 82.8% pass (588 tests)2013: 78.5% pass (587 tests)2014: 82.6% pass (546 tests)2015: 81.9% pass (508 tests)2016: 77.8% pass (487 tests)2017: 80.3% pass (427 tests)2018: 77.1% pass (314 tests)2019: 77.7% pass (300 tests)2020: 81.1% pass (249 tests)2021: 74.9% pass (315 tests)2022: 75.2% pass (303 tests)2023: 78.4% pass (291 tests)2024: 79.3% pass (203 tests)2025: 84.5% pass (207 tests)20082025

Pass rate by mileage

how the ZX 636 C6F's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage ZX 636 C6F passes first time 85.6% of the time; by 50k that's 59.2%.

54%72%91%0k: 85.6% pass (2,575 tests)10k: 78.9% pass (2,838 tests)20k: 75.8% pass (1,304 tests)30k: 71.1% pass (464 tests)40k: 71.0% pass (162 tests)50k: 59.2% pass (49 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 ZX 636 C6F

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
450 26.8 1.0×
brakes
298 17.7 0.7×
lamps and reflectors
251 14.9 1.4×
steering and suspension
189 11.2 0.7×
tyres and wheels
182 10.8 1.0×
reg plates and vin
112 6.7 2.0×
drive system
62 3.7 1.0×
suspension
50 3 0.8×
Identification of the vehicle
44 2.6 2.6×
structure and attachments
43 2.6 0.7×

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 ZX 636 C6F beats 2 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 ZX 636 C6F.

Pass rate by registration year

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

Best year to buy used: 2005 (81.0% pass). Weakest: 2007 (72.8%).

71%77%83%2005: 81.0% pass (1,075 tests)2006: 79.7% pass (6,231 tests)2007: 72.8% pass (114 tests)200520062007

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.

KAWASAKI ZX 636 C6F FAQ

answers computed from the data above · terms in the glossary

Is the KAWASAKI ZX 636 C6F reliable?

The KAWASAKI ZX 636 C6F is less reliable than average for its class: 79.8% of its 7,429 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #3626 of 5426 models.

What does a ZX 636 C6F fail its MOT on most?

lighting and signalling — 27% of all defects recorded against failed ZX 636 C6F tests.

What is the best year of ZX 636 C6F to buy used?

By first-time pass rate, 2005-registered examples do best (81.0%) and 2007 worst (72.8%). Condition and history still trump the year.

How many miles will a ZX 636 C6F last?

The median ZX 636 C6F shows 13,402 miles at test, and examples around 50k miles still pass 59.2% of the time — mileage alone rarely kills one.