BIKERELIABILITY Reg check
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Harley-Davidson XL1200R Sportster 1200 vs Harley-Davidson XLH 883

The Harley-Davidson XL1200R Sportster 1200 passes its MOT first time more often than the Harley-Davidson XLH 883: 88.8% vs 87.4%, a 1.4-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Harley-Davidson XL1200R Sportster 1200 Harley-Davidson XLH 883
First-time pass rate 88.8% 87.4%
Outright fail rate 5.4% 5.9%
Vs comparable bikes (age & mileage adjusted) +2.9 pts +1.6 pts
Engine size 1,200cc 883cc
Rank among all models #1332 of 5428 #1787 of 5428
Median miles at test 11,387 10,350
MOT tests analysed 3,317 41,267
Most common failure lighting and signalling lighting and signalling

First-time outcomes on normal tests, 2005–2025. "Most common failure" is the component group with the most recorded defects on failed tests. Read pass rates against test counts: a smaller sample is noisier. Source: DVSA anonymised MOT results.

"Vs comparable bikes" is the first-time pass rate minus the rate expected for each bike's own mix of age, mileage and test class, in percentage points: positive means better than comparable bikes. How this works.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better
Component Harley-Davidson XL1200R Sportster 1200 Harley-Davidson XLH 883
Lights & signalling 2.5% 3.0%
Brakes 1.4% 1.4%
Tyres & wheels 1.1% 0.9%
Steering & suspension 0.6% 1.1%
Fuel & exhaust 0.5% 0.6%
Structure & body 0.4% 0.5%
Drive system 0% 0.1%

A test that fails on two components counts once in each. Component links go to the bikes most likely to fail on it.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested
Test year Harley-Davidson XL1200R Sportster 1200 Harley-Davidson XLH 883
2018 92.0% 88.4%
2019 93.7% 87.2%
2020 93.8% 88.9%
2021 86.1% 87.8%
2022 89.9% 87.1%
2023 93.3% 87.1%
2024 89.0% 86.4%
2025 89.7% 87.4%

Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test
Mileage Harley-Davidson XL1200R Sportster 1200 Harley-Davidson XLH 883
0k-10k miles 90.7% 89.1%
10k-20k miles 88.2% 87.0%
20k-30k miles 86.0% 85.3%
30k-40k miles 86.7% 83.7%
40k-50k miles 87.7% 83.6%
50k-60k miles 80.6% 88.4%

Bands with fewer than 30 tests for either bike are left out.

Harley-Davidson XL1200R Sportster 1200 vs Harley-Davidson XLH 883 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Harley-Davidson XL1200R Sportster 1200 or the Harley-Davidson XLH 883?

The Harley-Davidson XL1200R Sportster 1200 passes its MOT first time more often than the Harley-Davidson XLH 883: 88.8% vs 87.4%, a 1.4-point lead. Adjusted for age, mileage and test class, the Harley-Davidson XL1200R Sportster 1200 still comes out ahead: +2.9 points vs comparable bikes for the Harley-Davidson XL1200R Sportster 1200, +1.6 for the Harley-Davidson XLH 883. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Harley-Davidson XL1200R Sportster 1200 fail its MOT on most?

Lights & signalling: 2.5% of Harley-Davidson XL1200R Sportster 1200 MOT tests failed on it, then brakes (1.4%).

What does the Harley-Davidson XLH 883 fail its MOT on most?

Lights & signalling: 3.0% of Harley-Davidson XLH 883 MOT tests failed on it, then brakes (1.4%).

Which holds up better at high mileage, the Harley-Davidson XL1200R Sportster 1200 or the Harley-Davidson XLH 883?

At 50k-60k miles the Harley-Davidson XLH 883 passes first time more often: 80.6% for the Harley-Davidson XL1200R Sportster 1200 vs 88.4% for the Harley-Davidson XLH 883.

See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.