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

HERALD MOTOR COMPANY XF

125cc Petrol Class 1
66.1%
first-time pass rate
18.8%
failed outright
5,213
median miles at test
1,923
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2017–2025

The XF's first-time pass rate has fallen 2.1 points since 2017, 68.0% to 65.9%.

57%67%77%2017: 68.0% pass (103 tests)2018: 65.2% pass (164 tests)2019: 63.6% pass (253 tests)2020: 73.6% pass (254 tests)2021: 64.6% pass (305 tests)2022: 66.4% pass (268 tests)2023: 60.5% pass (238 tests)2024: 69.9% pass (163 tests)2025: 65.9% pass (164 tests)20172025

Pass rate by mileage

how the XF's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage XF passes first time 68.7% of the time; by 20k that's 61.7%.

55%63%71%0k: 68.7% pass (1,478 tests)10k: 57.5% pass (367 tests)20k: 61.7% pass (47 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 XF

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lamps and reflectors
475 45 8.3×
structure and attachments
246 23.3 11.5×
brakes
115 10.9 1.0×
suspension
62 5.9 4.2×
lighting and signalling
45 4.3 0.3×
steering
34 3.2 4.0×
tyres
32 3 2.4×
Identification of the vehicle
19 1.8 4.3×
wheels
14 1.3 12.1×
steering and suspension
13 1.2 0.2×

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 XF beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).

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 XF.

Pass rate by registration year

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

Best year to buy used: 2016 (68.3% pass). Weakest: 2013 (54.8%).

52%62%71%2013: 54.8% pass (84 tests)2014: 62.8% pass (414 tests)2015: 67.3% pass (602 tests)2016: 68.3% pass (811 tests)201320152016

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.

HERALD MOTOR COMPANY XF FAQ

answers computed from the data above · terms in the glossary

Is the HERALD MOTOR COMPANY XF reliable?

The HERALD MOTOR COMPANY XF is less reliable than average for its class: 66.1% of its 1,923 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4958 of 5426 models.

What does a XF fail its MOT on most?

lamps and reflectors — 45% of all defects recorded against failed XF tests.

What is the best year of XF to buy used?

By first-time pass rate, 2016-registered examples do best (68.3%) and 2013 worst (54.8%). Condition and history still trump the year.

How many miles will a XF last?

The median XF shows 5,213 miles at test, and examples around 20k miles still pass 61.7% of the time — mileage alone rarely kills one.