Know Your MOT

MOT failure rate and common problems for the Triumph T20sh, and how to check your own car by registration.

Updated 05 September 2026.

7.8%fail rate

Triumph T20sh MOT failure rate

What a Triumph T20sh fails its MOT on, and the part that fixes each.

What it fails on, and why

Brakes25.0% of failures

Brake failures cover worn pads and discs, an imbalance between wheels, corroded or scored discs, or a binding caliper. Braking efficiency is measured on a rolling road, so a spongy or pulling brake shows up as a low reading.

Other25.0% of failures

This covers a range of smaller items, from a non-working horn to a warning light left on.

The parts that fix each

If your car has just failed, you have 10 working days to fix the items and get a free partial retest. Confirm the exact fitment against your registration or VIN before buying.

For the brakes failure: Triumph T20sh brake pads and discsShop Triumph T20sh brake pads and discs on AmazonaffiliateFind Triumph T20sh brake pads and discs on eBayaffiliate

Other models

All Triumph models MOT failure rates comparedRanked worst to bestTriumph Bonneville MOT failures9.8% failure rateTriumph Tiger MOT failures9.2% failure rateFord Fiesta MOT failures27.1% failure rate

Questions and answers

What is the MOT failure rate of the Triumph T20sh?

It fails 7.8% of its MOT tests across the DVSA record, from 51 tests.

What do these cars fail their MOT on most?

The most common failure area is brakes, at 25.0% of this model's failures.