Gas Gas TXT vs Yamaha RD350

The Gas Gas TXT passes its MOT first time more often than the Yamaha RD350: 87.9% vs 86.3%, a 1.6-point lead.

MOT reliability, side by side

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

Metric	Gas Gas TXT	Yamaha RD350
First-time pass rate	87.9%	86.3%
Outright fail rate	8.1%	6.6%
Engine size	272cc	347cc
Rank among all models	#1639 of 5428	#2120 of 5428
Median miles at test	124	23,256
MOT tests analysed	589	19,574
Most common failure	tyres	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.

What fails, side by side

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

Component	Gas Gas TXT	Yamaha RD350
Steering & suspension	3.1%	2.5%
Lights & signalling	1.5%	3.2%
Tyres & wheels	3.6%	0.9%
Brakes	1.0%	2.7%
Structure & body	0.2%	0.4%
Drive system	0%	0.5%
Fuel & exhaust	0%	0.4%

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	Gas Gas TXT	Yamaha RD350
2018	79.0%	88.8%
2019	94.9%	91.0%
2020	88.1%	92.0%
2021	93.7%	90.1%
2022	84.9%	90.5%
2023	91.3%	92.2%
2024	89.2%	94.8%
2025	90.0%	93.5%

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

Gas Gas TXT vs Yamaha RD350 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Gas Gas TXT or the Yamaha RD350?

The Gas Gas TXT passes its MOT first time more often than the Yamaha RD350: 87.9% vs 86.3%, a 1.6-point lead. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Gas Gas TXT fail its MOT on most?

Tyres & wheels: 3.6% of Gas Gas TXT MOT tests failed on it, then steering & suspension (3.1%).

What does the Yamaha RD350 fail its MOT on most?

Lights & signalling: 3.2% of Yamaha RD350 MOT tests failed on it, then brakes (2.7%).

GAS GAS TXT 87.9% pass · 589 tests YAMAHA RD350 86.3% pass · 19.6k tests

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