Bajaj Chetak vs Yamaha YBR 125

The Bajaj Chetak passes its MOT first time more often than the Yamaha YBR 125: 80.7% vs 71.0%, a 9.7-point lead.

MOT reliability, side by side

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

Metric	Bajaj Chetak	Yamaha YBR 125
First-time pass rate	80.7%	71.0%
Outright fail rate	11.5%	17.1%
Vs comparable bikes (age & mileage adjusted)	+4.4 pts	-1.1 pts
Engine size	125cc	124cc
Rank among all models	#3439 of 5428	#4664 of 5428
Median miles at test	6,358	10,652
MOT tests analysed	633	124,897
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.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better

Component	Bajaj Chetak	Yamaha YBR 125
Lights & signalling	7.9%	8.5%
Steering & suspension	5.5%	6.5%
Brakes	3.9%	5.9%
Tyres & wheels	2.5%	4.4%
Structure & body	0.6%	3.8%
Drive system	0%	2.9%
Fuel & exhaust	0.3%	0.6%

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	Bajaj Chetak	Yamaha YBR 125
2009	73.9%	70.7%
2010	75.0%	71.4%
2011	76.6%	69.1%
2012	77.4%	69.1%
2013	72.7%	69.5%
2014	65.0%	70.0%
2016	89.5%	71.3%
2019	90.0%	71.8%

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	Bajaj Chetak	Yamaha YBR 125
0k-10k miles	81.2%	76.8%
10k-20k miles	79.7%	67.4%
20k-30k miles	90.2%	63.8%

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

Bajaj Chetak vs Yamaha YBR 125 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Bajaj Chetak or the Yamaha YBR 125?

The Bajaj Chetak passes its MOT first time more often than the Yamaha YBR 125: 80.7% vs 71.0%, a 9.7-point lead. Adjusted for age, mileage and test class, the Bajaj Chetak still comes out ahead: +4.4 points vs comparable bikes for the Bajaj Chetak, -1.1 for the Yamaha YBR 125. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Bajaj Chetak fail its MOT on most?

Lights & signalling: 7.9% of Bajaj Chetak MOT tests failed on it, then steering & suspension (5.5%).

What does the Yamaha YBR 125 fail its MOT on most?

Lights & signalling: 8.5% of Yamaha YBR 125 MOT tests failed on it, then steering & suspension (6.5%).

Which holds up better at high mileage, the Bajaj Chetak or the Yamaha YBR 125?

At 20k-30k miles the Bajaj Chetak passes first time more often: 90.2% for the Bajaj Chetak vs 63.8% for the Yamaha YBR 125.

BAJAJ CHETAK 80.7% pass · 633 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.