Honda NS125R-K vs Yamaha YBR 125

The Yamaha YBR 125 passes its MOT first time more often than the Honda NS125R-K: 71.0% vs 53.0%, a 18.0-point lead.

MOT reliability, side by side

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

Metric	Honda NS125R-K	Yamaha YBR 125
First-time pass rate	53.0%	71.0%
Outright fail rate	38.5%	17.1%
Vs comparable bikes (age & mileage adjusted)	-19.9 pts	-1.1 pts
Engine size	124cc	124cc
Rank among all models	#5360 of 5428	#4664 of 5428
Median miles at test	21,462	10,652
MOT tests analysed	304	124,897
Most common failure	steering and suspension	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	Honda NS125R-K	Yamaha YBR 125
0k-10k miles	63.3%	76.8%
10k-20k miles	53.8%	67.4%
20k-30k miles	53.5%	63.8%
30k-40k miles	52.5%	62.2%

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

HONDA NS125R-K 53.0% pass · 304 tests YAMAHA YBR 125 71.0% pass · 125k tests

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