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MOT History from tests of petrol TRIUMPH UNKNOWNs year 1991

Review the list of common TRIUMPH UNKNOWN failures below or to perform a specific mot history check on your TRIUMPH then use our popular KnowYourCar service

mot history
Pass percent:85.37%
(The average a petrol TRIUMPH UNKNOWN year 1991 passes without issue)
Based on:41 MOT Tests
Most common failuresNo# failures
Offside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k|1
Front Brake excessively binding (1.2.1 (f))1
Front Wheel more than one fixing loose (5.2.1 (a) (ii))1
Nearside Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii))1
Rear Valve stem seriously damaged |5.2.3 |j||1
Headlamp aim out of alignment1
Rear Brake caliper insecure (1.1.16 (c) (i))1
Nearside Front Brake caliper insecure (1.1.16 (c) (i))1
Rear Brake rod insecure (1.1.15 (c))1
Nearside Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected concentric adjuster (5.2.1 (c) (ii))1
Front Brake reaction bracket securing bolt|s| loose |3.2.A1j|1
Handlebar so insecure it is likely to become detached o/s handle bars mounting bolt loose |2.2.1 |b| |ii||1
Front Suspension rod attachment bracket/mounting insecure pivot mounting loose |5.3.3 |a| |i||1

We get to these numbers by trawling through over 1 billion MOT test results since 2004 and crunched the numbers. We remove anything to do with Tyres, as they are model independent and group together common non-model specific issues. We are trying to get to a picture of what models have what issues.

Please note: We take the data from the DVSA. This data is raw and can contain typos and spelling mistakes that garages may have entered while recording a MOT result. Specifically miss-match on names of models and makes. We are constantly cleaning the data so bear with the odd issue.

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