BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ KTM/300 EXC 17
Model report · 2005–2025

KTM 300 EXC 17

293cc Petrol Class 2
#2960 of 5426 overall #119 of 230 KTMs #1873 of 2787 other bikes
83.0%
first-time pass rate
6.6%
failed outright
2,289
median miles at test
482
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2019–2025

The 300 EXC 17's first-time pass rate has risen 6.4 points since 2019, 84.8% to 91.2%.

73%84%95%2019: 84.8% pass (33 tests)2020: 80.8% pass (78 tests)2021: 77.0% pass (87 tests)2022: 82.5% pass (80 tests)2023: 79.8% pass (84 tests)2024: 90.5% pass (63 tests)2025: 91.2% pass (57 tests)20192025

What fails on a 300 EXC 17

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lamps and reflectors
31 34.1
suspension
19 20.9
audible warning (Horn)
14 15.4
tyres
13 14.3
Identification of the vehicle
9 9.9
wheels
2 2.2
structure and attachments
2 2.2
steering
1 1.1

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the 300 EXC 17 beats 3 of its 4 closest rivals (YAMAHA RD350, YAMAHA YP250, YAMAHA WR250F).

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 300 EXC 17.

Pass rate by registration year

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

Best year to buy used: 2017 (84.1% pass). Weakest: 2016 (82.6%).

82%83%85%2016: 82.6% pass (356 tests)2017: 84.1% pass (126 tests)20162017

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.