1975 Lamborghini Countach — LP40
The 1975 Lamborghini Countach LP40 shipped with 2 different factory tire sizes, depending on the wheel package it left the factory with (this can also reflect a staggered front/rear setup). Check your tire sidewall or door placard to confirm which one applies to your vehicle.
This trim shipped with more than one tire size (staggered fitment, front/rear, or optional wheel package). Confirm which one matches your vehicle by checking your tire sidewall or door placard.
205/70R14 (Front)
| Section width | 205 mm |
|---|---|
| Aspect ratio (sidewall height) | 70% (143.5 mm) |
| Rim diameter | 14" |
| Overall tire diameter | ~25.3" |
| Revolutions per mile | ~797 |
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215/70R14 (Rear)
| Section width | 215 mm |
|---|---|
| Aspect ratio (sidewall height) | 70% (150.5 mm) |
| Rim diameter | 14" |
| Overall tire diameter | ~25.9" |
| Revolutions per mile | ~780 |
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What this size means for your Lamborghini Countach
On the 1975 Lamborghini Countach LP40, the factory 205/70R14 measures about 25.3″ in overall diameter with a 143.5 mm (5.6″) sidewall, and completes roughly 797 revolutions per mile. Its 70-series aspect ratio gives a tall sidewall of the kind used on trucks, SUVs, and older passenger cars, built for cushioning and load. In tire terms it is a small-diameter fitment typical of older or economy vehicles.
This is a staggered setup: the front axle runs 205/70R14 and the rear runs 215/70R14. The two sizes are not interchangeable, so order each for its correct axle and don't rotate front-to-rear.
Because the 1975 Lamborghini Countach predates many current tire lines, confirm this size is still stocked before ordering — some vintage fitments are now served mainly by specialty and classic-car tire suppliers.
Lamborghini Countach tire sizes by year
- 1989 Lamborghini Countach 225/50R15 (Front) / 345/35R15 (Rear)
- 1988 Lamborghini Countach 225/50R15 (Front) / 345/35R15 (Rear)
- 1987 Lamborghini Countach 225/50R15 (Front) / 345/35R15 (Rear)
- 1986 Lamborghini Countach 225/50R15 (Front) / 345/35R15 (Rear)
- 1985 Lamborghini Countach 225/50R15 (Front) / 345/35R15 (Rear)
- 1984 Lamborghini Countach 205/50R15 (Front) / 345/35R15 (Rear)
- 1983 Lamborghini Countach 205/50R15 (Front) / 345/35R15 (Rear)
- 1976 Lamborghini Countach 205/70R14 (Front) / 215/70R14 (Rear)
- 1974 Lamborghini Countach 205/70R14 (Front) / 215/70R14 (Rear)
How to read a tire size
A tire size like 225/45R17 breaks down into three parts:
the first number is the section width in millimeters
(the tire's width from sidewall to sidewall), the second is the
aspect ratio — the sidewall's height as a percentage of
that width — and the number after the "R" is the rim
diameter in inches. A letter prefix (P or LT) indicates
Passenger or Light Truck construction; its absence usually means
Euro-metric sizing.
Some trucks and off-road tires instead use "flotation" sizing, like
37X12.50R17 — here the numbers are the tire's overall
diameter and width in inches directly, with the rim diameter last.
Always verify against the tire information placard on your driver's-side door jamb or your owner's manual before purchasing — tire size can vary by factory option package even within the same trim.