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

BMW K1

987cc Petrol Class 2
#1269 of 5426 overall #52 of 109 BMWs #775 of 2787 other bikes
89.0%
first-time pass rate
7.9%
failed outright
32,275
median miles at test
1,732
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2025

The K1's first-time pass rate has risen 6.6 points since 2006, 91.3% to 97.9%.

79%90%100%2006: 91.3% pass (138 tests)2007: 87.7% pass (130 tests)2008: 82.8% pass (122 tests)2009: 87.6% pass (105 tests)2010: 84.3% pass (115 tests)2011: 89.9% pass (109 tests)2012: 87.4% pass (95 tests)2013: 83.6% pass (110 tests)2014: 86.5% pass (89 tests)2015: 88.5% pass (87 tests)2016: 88.9% pass (81 tests)2017: 94.9% pass (79 tests)2018: 96.5% pass (57 tests)2019: 92.9% pass (56 tests)2020: 90.9% pass (55 tests)2021: 92.3% pass (65 tests)2022: 93.3% pass (60 tests)2023: 85.0% pass (60 tests)2024: 95.7% pass (46 tests)2025: 97.9% pass (47 tests)20062025

Pass rate by mileage

how the K1's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage K1 passes first time 94.9% of the time; by 50k that's 88.2%.

86%91%96%0k: 94.9% pass (118 tests)10k: 87.8% pass (221 tests)20k: 88.3% pass (427 tests)30k: 87.9% pass (322 tests)40k: 89.4% pass (274 tests)50k: 88.2% pass (187 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 K1

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
71 28.5 0.7×
lighting and signalling
58 23.3 0.5×
steering and suspension
57 22.9 0.9×
tyres and wheels
19 7.6 0.5×
lamps and reflectors
15 6 0.4×
suspension
8 3.2 0.5×
body and structure
8 3.2 0.8×
reg plates and vin
7 2.8 0.5×
fuel and exhaust
3 1.2 0.2×
audible warning (Horn)
3 1.2 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 K1 beats 3 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 K1.

Pass rate by registration year

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

Best year to buy used: 1989 (91.7% pass). Weakest: 1991 (86.9%).

86%89%93%1989: 91.7% pass (336 tests)1990: 89.2% pass (734 tests)1991: 86.9% pass (175 tests)1992: 87.5% pass (176 tests)1993: 87.2% pass (211 tests)198919911993

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.

BMW K1 FAQ

answers computed from the data above · terms in the glossary

Is the BMW K1 reliable?

The BMW K1 is more reliable than average for its class: 89.0% of its 1,732 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1269 of 5426 models.

What does a K1 fail its MOT on most?

brakes — 29% of all defects recorded against failed K1 tests.

What is the best year of K1 to buy used?

By first-time pass rate, 1989-registered examples do best (91.7%) and 1991 worst (86.9%). Condition and history still trump the year.

How many miles will a K1 last?

The median K1 shows 32,275 miles at test, and examples around 50k miles still pass 88.2% of the time — mileage alone rarely kills one.