MOT cost .

Sukida

SK 125 T 21 Viper

1,300 MOT tests analysed. runs below the UK fleet average — here's where SK 125 T 21 Vipers pass, fail, and end up on the retest sheet.

That's 77.5 points below the UK fleet average across our 1,984 tracked models — buyers should expect more first-time fails than the typical UK car.

Pass

0.0%

Pass-after-fix

100.0%

Fail

0.0%

Avg miles

24,489

Pass + Pass-after-fix + Fail = 100%

ULEZ compliant

Petrol cars first registered from January 2006 meet Euro 4 — compliant in London ULEZ, Birmingham CAZ, Bristol CAZ, and Glasgow LEZ.

UK ULEZ & CAZ guide →

The picture

Sk 125 T-21 Viper: a below-average pass rate worth digging into

Across 1,300 MOT tests, the Sk 125 T-21 Viper returns 0.0% first-time pass — near the bottom of the UK fleet average. Average tested mileage sits at 24,489, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.

Top ten reasons for rejection.

Filter failures:

Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.

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Buying or keeping an SK 125 T 21 Viper?

Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.

If you own an SK 125 T 21 Viper and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.