Ajs DD 250 E vs Honda CBF250

The Honda CBF250 passes its MOT first time more often than the Ajs DD 250 E: 84.9% vs 75.6%, a 9.3-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025

Metric	Ajs DD 250 E	Honda CBF250
First-time pass rate	75.6%	84.9%
Outright fail rate	14.9%	8.1%
Vs comparable bikes (age & mileage adjusted)	-12.1 pts	-1.4 pts
Engine size	234cc	249cc
Rank among all models	#4233 of 5428	#2516 of 5428
Median miles at test	5,916	10,566
MOT tests analysed	201	7,536
Most common failure	lighting and signalling	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 mileage

first-time MOT pass rate by miles on the clock at test

Mileage	Ajs DD 250 E	Honda CBF250
0k-10k miles	82.4%	88.5%
10k-20k miles	68.8%	82.6%

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

AJS DD 250 E 75.6% pass · 201 tests HONDA CBF250 84.9% pass · 7,536 tests

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