The Short Version
- 4×100 with a 54 mm hub bore, and +45 offset. Same on the L880K and the LA400K.
- Factory wheel: 15×4.5J +45 on 165/50R15 for the L880K, becoming 16×4.5J +45 on 165/50R16 on the LA400K.
- Only the diameter changed at the generation break. PCD, bore, offset and rim width all stayed put.
- US buyers: nothing is eligible yet. The Copen launched in June 2002, so the earliest cars cross the 25-year line in mid-2027.
A Kei Car That Did Not Move
Model changes usually move something. When Daihatsu replaced the L880K with the LA400K in 2014 — new body, new engine, new roof mechanism, a completely different car to drive — the wheel specification stayed where it was: 4×100, 54 mm bore, +45 offset, 4.5J rim. The only change was the step from 15 inches to 16, and the tyre followed it from 165/50R15 to 165/50R16.
That is unusual and it is useful. It means a set of L880K wheels bolts to an LA400K and vice versa. It also means that when you find a set of Copen wheels for sale and the listing does not say which generation, the bolt-up question answers itself — only the diameter tells you which car they came off.
The 54 mm bore is the kei-Daihatsu family figure, and we have it from the factory table rather than from assumption. That matters because 54 mm is small, and almost every aftermarket wheel you will look at is bored larger. Budget for 54 mm hub-centric rings as part of any purchase.
Factory Specification
| Generation | Chassis | Period | Wheel | Tyre | PCD / Holes / Bore |
|---|---|---|---|---|---|
| 1st | LA-L880K | 2002.09–2004.06 | 15×4.5J +45 | 165/50R15 | 100 / 4 / 54 |
| 1st | ABA-L880K | 2004.06–2009.09 | 15×4.5J +45 | 165/50R15 | 100 / 4 / 54 |
| 1st (final) | ABA-L880K | 2010.08–2012.09 | 15×4.5J +45 | 165/50R15 | 100 / 4 / 54 |
| 2nd | DBA-LA400K | 2014.06– | 16×4.5J +45 | 165/50R16 | 100 / 4 / 54 |
4.5J Is Narrower Than You Think
A 4.5J rim carrying a 165-section tyre is at the narrow end of what that tyre is rated for. It is entirely correct from the factory, but it is why Copens look slightly under-tyred next to their arches and why so many owners go straight to a wider wheel.
The usual move is 15×6.0J or 15×6.5J in the +35 to +45 range on a 165/50 or 175/50, or 16×6.5J on the LA400K. Going wider than 6.5J on a car this narrow starts to need fender work, and the kei body regulations that shaped the car mean there is genuinely very little room. If you are keeping the car kei-registered in Japan, remember the tyre must not project beyond the body — that is a legal constraint, not a styling preference. Overseas that constraint disappears, which is exactly why exported Copens end up on wheels no JDM owner could run.
Importing to the United States
This is the part Copen shoppers most often get wrong. The car launched in June 2002, and the 25-year rule runs on the month the car was built. As of August 2026, no Copen is eligible yet. The earliest-built cars become importable from June 2027, and eligibility then rolls forward month by month through the rest of the L880K run to 2012 and beyond.
If a broker offers you a Copen today as legally importable to the US, ask to see the build date on the plate before anything else. The LA400K is a 2030s proposition and will be for a long time.
Canada’s 15-year rule is a different story entirely — the whole L880K run and the early LA400K clear it comfortably. UK and Australian buyers should note that the Copen was sold new in the UK and several European markets during the L880K era, so right-hand-drive cars are already local in Britain. We have that from market sources rather than from a Japanese factory document, so treat it as reliable background rather than as a specification.
What We Could Not Verify
- Whether every one of the roughly nine L880K grade and year combinations carries the identical specification. We checked four spanning 2002 to 2012 and all matched.
- The chassis code and exact wheel specification of the European-market 1.3-litre Copen, which is outside the Japanese database.
- Factory wheel data for LA400K grades after 2016.
Seen on the road
Which wheels are you looking for? Tell us the wheel, the size and the fitment — send us a request and we will go and find it.
Wheel identification is taken from the hashtags the owner applied to their own post.