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HK20 RNN

2020 Mutt Mastiff 125

Black Petrol 125cc
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MOT Status

Valid
Expires27 Aug 2026
Tests5 (3 pass, 2 fail)
Pass rate60%

Mileage

22,116 mi
Last recorded22,116 miles
Recorded on28 Aug 2025
Typical for 2020 Mutt Mastiff 1255,166 mi

Significantly above average — investigate

4 checks still locked for this Mutt
Stolen
Finance
Write-off
Keepers
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Vehicle Details

RegistrationHK20 RNN
MakeMutt
ModelMastiff 125
Year2020
ColourBlack
Fuel typePetrol
Engine125cc
View full Mutt Mastiff 125 reliability data

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MOT History

3 pass 2 fail
Pass 28 Aug 2025 22,116 miles

Exhaust noisy noisy exhaust (8.1.1 (a))

Fail 13 Aug 2025 22,116 miles

Direction indicator with a multiple light source more than 1/2 not functioning right hand rear indicator less than 50% working (4.4.1 (a) (ii))

Headlamp aim unable to be tested dip beam inop (4.1.2 (b))

Headlamp not working on dipped beam dip beam inop (4.1.1 (a) (ii))

Shock absorber has negligible damping effect rear suspension inop ie very little movement or rebound (5.3.2 (b))

Exhaust noisy noisy exhaust (8.1.1 (a))

Rear reflector missing missing reflector (4.8.2 (a) (ii))

Pass 15 Aug 2024 12,697 miles

Exhaust noisy (8.1.1 (a))

Pillion footpegs have been removed but a handhold is still present.

Fail 13 Aug 2024 12,691 miles

Nearside Rear Direction indicator not working (4.4.1 (a) (ii))

Rear reflector missing (4.8.2 (a) (ii))

Exhaust noisy (8.1.1 (a))

Pillion footpegs have been removed but a handhold is still present.

Pass 7 Jul 2023 6,236 miles

Steering headbearing slightly stiff or notchy (2.2.2 (f) (i))

How Reliable is the Mutt Mastiff 125?

Based on 339 MOT tests across 152 vehicles.

75.8%
Pass Rate
871
Miles/Year
152
On UK Roads
Full Mutt Mastiff 125 reliability report

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HK20 RNN is a 2020 Mutt Mastiff 125 in Black with a 125cc petrol engine. This vehicle has been through 5 MOT tests with a personal pass rate of 60%.

Across all 2020 Mutt Mastiff 125 models, the average MOT pass rate is 78.8% with a typical mileage of 5,166 miles. This particular vehicle has a lower pass rate than the average for its year, which may indicate maintenance issues worth investigating.

Frequently Asked Questions

How do I check the history of HK20 RNN?

You can check the full history of HK20 RNN by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was HK20 RNN registered?

HK20 RNN is a 2020 Mutt Mastiff 125, first registered on 4 August 2020.

Is HK20 RNN safe to buy?

The MOT history for HK20 RNN shows 5 tests with a 60% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does HK20 RNN have outstanding finance?

Finance checks require a premium vehicle report. This checks against all major UK finance providers to see if there is any outstanding finance on HK20 RNN. If you buy a car with outstanding finance, the finance company can repossess it.

No warranty or guarantee of accuracy is provided for any free data on this page. The data guarantee applies only to information obtained through the purchase of a full check.