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

Data as of: DVSA MOT results to 2025

Kawasaki Ej 800 BKF Street vs Triumph Sprint

The Kawasaki Ej 800 BKF Street passes its MOT first time more often than the Triumph Sprint: 95.7% vs 85.6%, a 10.1-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Kawasaki Ej 800 BKF Street Triumph Sprint
First-time pass rate 95.7% 85.6%
Outright fail rate 2.3% 8.8%
Vs comparable bikes (age & mileage adjusted) +6.3 pts +1.8 pts
Engine size 773cc 955cc
Rank among all models #41 of 5428 #2333 of 5428
Median miles at test 3,784 20,615
MOT tests analysed 258 132,827
Most common failure lamps and reflectors brakes

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.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested
Test year Kawasaki Ej 800 BKF Street Triumph Sprint
2022 100.0% 85.9%
2023 96.6% 86.4%
2024 94.4% 86.8%
2025 94.3% 86.8%

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

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