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

BUELL 1125 R

1125cc Petrol Class 2
#2491 of 5426 overall #17 of 23 BUELLs #1561 of 2787 other bikes
85.0%
first-time pass rate
7.4%
failed outright
7,349
median miles at test
1,088
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2011–2025

The 1125 R's first-time pass rate has fallen 2.0 points since 2011, 82.9% to 80.9%.

77%86%95%2011: 82.9% pass (35 tests)2012: 79.7% pass (74 tests)2013: 81.3% pass (123 tests)2014: 83.5% pass (121 tests)2015: 90.6% pass (106 tests)2016: 88.8% pass (107 tests)2017: 84.9% pass (93 tests)2018: 84.7% pass (59 tests)2019: 82.8% pass (64 tests)2020: 83.3% pass (36 tests)2021: 87.9% pass (66 tests)2022: 84.7% pass (59 tests)2023: 87.1% pass (62 tests)2024: 91.7% pass (36 tests)2025: 80.9% pass (47 tests)20112025

Pass rate by mileage

how the 1125 R's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage 1125 R passes first time 86.7% of the time; by 20k that's 80.4%.

79%84%88%0k: 86.7% pass (716 tests)10k: 81.9% pass (287 tests)20k: 80.4% pass (56 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 1125 R

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
27 19.3 0.5×
lamps and reflectors
21 15 0.8×
steering and suspension
20 14.3 0.5×
brakes
17 12.1 0.4×
tyres and wheels
16 11.4 0.7×
suspension
12 8.6 1.0×
fuel and exhaust
9 6.4 1.1×
reg plates and vin
9 6.4 1.1×
structure and attachments
5 3.6 0.7×
tyres
4 2.9 0.5×

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 1125 R beats 1 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 1125 R.

Pass rate by registration year

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

Best year to buy used: 2009 (87.2% pass). Weakest: 2008 (82.0%).

81%85%88%2008: 82.0% pass (256 tests)2009: 87.2% pass (530 tests)2010: 84.1% pass (295 tests)200820092010

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.

BUELL 1125 R FAQ

answers computed from the data above · terms in the glossary

Is the BUELL 1125 R reliable?

The BUELL 1125 R is about average for its class: 85.0% of its 1,088 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2491 of 5426 models.

What does a 1125 R fail its MOT on most?

lighting and signalling — 19% of all defects recorded against failed 1125 R tests.

What is the best year of 1125 R to buy used?

By first-time pass rate, 2009-registered examples do best (87.2%) and 2008 worst (82.0%). Condition and history still trump the year.

How many miles will a 1125 R last?

The median 1125 R shows 7,349 miles at test, and examples around 20k miles still pass 80.4% of the time — mileage alone rarely kills one.