Yamaha DT175 vs Bsa Bantam

The Bsa Bantam passes its MOT first time more often than the Yamaha DT175: 88.7% vs 82.9%, a 5.8-point lead.

MOT reliability, side by side

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

Metric	Yamaha DT175	Bsa Bantam
First-time pass rate	82.9%	88.7%
Outright fail rate	8.7%	5.4%
Median miles at test	12,008	13,193
MOT tests analysed	2,702	7,202
Most common failure	lighting and signalling	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.

YAMAHA DT175 82.9% pass · 2,702 tests BSA BANTAM 88.7% pass · 7,202 tests

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