Gilera Unknown (2004)

112 real MOT outcomes analysed • 2.5% first-time pass rate

2004 Gilera Unknown

CarHunch analysed 112 real MOT records for the 2004 Gilera Unknown. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

This 2004 Gilera has a catastrophic 2.5% first-time pass rate against the UK average of 80%—petrol models don't pass at all—making it fundamentally unreliable for MOT compliance. Nearly 1% of these vehicles have recorded dangerous defects, a serious safety concern for any prospective buyer.

With only 112 vehicles analysed and an average mileage of just 3,821 miles, this cohort likely represents mostly stored or barely-used machines rather than regular runners, which explains the dismal pass rate; these bikes have been left dormant and are failing basic safety checks when finally tested. Before buying any 2004 Gilera, have a pre-purchase inspection by a qualified mechanic focus on fuel system, electrics, and brake condition, since the data suggests even low-mileage examples are problem-prone.

Below average reliability 77.5% below UK average
2.5%
pass MOT first time
UK average: ~80%
0.9%
ever had a dangerous defect
recorded at any MOT
0.03
avg MOT failures per car
over 1.1 tests on record

What to check before buying a 2004 Gilera Unknown

Practical pre-purchase checks for this age and model.

  • 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
  • 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
  • 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
  • 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.

Before you buy a Gilera Unknown

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

Inspection ClickMechanic Have a qualified mechanic check this car before you commit to buying

CarHunch may earn a small commission if you buy via these links — at no extra cost to you.

Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (93%) 104 0% 0
Petrol (4%) 4 70% 0.75
Diesel (4%) 4 0% 0

MOT History Averages

1.1
Avg MOT tests per vehicle
0.03
Avg failures per vehicle
0.1
Avg advisories per vehicle

Most Common MOT Issues — 2004 Gilera Unknown

Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.

  • 100%
    Nearside Front Shock absorber has a light misting of oil
  • 66.7%
    Offside Front Shock absorber has a light misting of oil
  • 66.7%
    front tyre cracking
  • 33.3%
    Offside Front Shock absorber has a serious fluid leak
  • 33.3%
    Rear Rear reflector missing
  • 33.3%
    Rear Suspension arm ball joint worn, but not excessively
  • 33.3%
    Rear Tyre tread depth is below minimum requirements of 1.0mm
  • 33.3%
    Rear Footrest missing

Data covers a 3-year window centred on 2004. Counts include advisories and failures.

Found a specific Gilera Unknown?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK

Other model years — Gilera Unknown:

1980 1981 1982 1993 2003