The Short Version
- 4×100 on a 54 mm bore. Both models, every grade.
- The turbo grades are no different. Only the wheel size changes.
- No Terios Kid surprise here. These are ordinary Daihatsu kei fitments.
- The pre-2021 Atrai van has no page of its own.
Why We Checked Carefully
Daihatsu kei vehicles are 4×100 on 54 mm. That is the family figure and it covers the Mira, the Move, the Hijet and the Copen.
It does not cover the Terios Kid, which turned out to be 5×114.3 on 66.5 mm — a full-size 4×4 hub under a 660 cc vehicle. That finding is the reason we now verify every Daihatsu kei model rather than assuming.
The Naked and the Atrai Wagon are not exceptions. Both are 4×100 / 54 mm throughout.
Factory Specification
| Model | Chassis | Period | Grade | Wheel | Tyre | PCD / Holes / Bore |
|---|---|---|---|---|---|---|
| Naked | GH-L750S | 1999.11–2000.10 | S Edition | 13×4.5J | 165/65R13 | 100 / 4 / 54 |
| Naked | UA-L750S (2WD) | 2003.05–2004.04 | G, G Limited | 13×4.5J +45 | 155/65R13 | 100 / 4 / 54 |
| Naked | LA-L750S (2WD) | — | Turbo G, Turbo G Limited | 13×4.5J or 14×4.5J +50 | 165/55R14 | 100 / 4 / 54 |
| Naked | LA/UA-L760S (4WD) | — | same grades | same as 2WD | — | 100 / 4 / 54 |
| Atrai Wagon | GF-S220G (2WD), GF-S230G (4WD) | 2001.01–2002.01 | CX High Roof | 13×4.5J +45 | 165/70R13 | 100 / 4 / 54 |
| Atrai Wagon | TA-S220G, TA-S230G | — | Custom Turbo G Selection, Star Edition | 13×4.5J +45 | 165/70R13 | 100 / 4 / 54 |
| Atrai Wagon | TA-S320G, TA-S330G | — | Custom Turbo R, RS Black Edition | 13×4.5J +45 | 165/65R13 | 100 / 4 / 54 |
| Atrai Wagon | ABA/3BA-S321G, S331G | to 2019.10 | Custom Turbo RS SA III | 13×4.5J +45 | 165/65R13 | 100 / 4 / 54 |
The Turbo Grades Get Wheels, Not Hubs
Consistent across both models. The Naked Turbo G steps to a 14-inch rim at +50 against the naturally aspirated car’s 13-inch at +45 — five millimetres further in and one size up. The Atrai Wagon’s Custom Turbo grades do not even do that; they run the same 13×4.5J at +45 as the base CX.
So on either car, a base-grade wheel fits a turbo grade and vice versa. On the Naked, note the offset difference if you are mixing them.
The Naked Deserves Its Following
Worth saying, since fitment is the boring part. The Naked was Daihatsu’s exposed-fastener, flat-panel, deliberately industrial kei car — visible bolt heads on the body, removable panels, a design brief essentially unrepeatable under modern pedestrian-impact rules.
It is on completely ordinary hardware, which is good news: 4×100 / 54 mm is the most abundant kei fitment there is, and 13 and 14-inch wheels in that pattern are cheap and plentiful.
Watch the bore, as always on 4×100: 54.1 for Toyota and Daihatsu, 56.1 for Honda, 59.1 or 60 for Nissan. A Honda or Nissan-bored wheel is loose on this hub.
Load Rating on the Atrai
The Atrai Wagon is a kei van with seats in it, and a lot of them get converted to campers or used as working vehicles. 13×4.5J with a 165-section tyre is a very small wheel carrying a tall, heavy vehicle.
Check the tyre load index rather than just the size, particularly if the vehicle has been converted. Our load rating guide covers the arithmetic, and the JWL and JWL-T reference explains why a commercial kei vehicle may need the stiffer standard.
Importing
The Naked ran from November 1999 to 2004, so the whole production is eligible for US import from 2025 onward on a rolling basis. The Atrai Wagon spans 2001 to 2019 and follows accordingly.
Neither was sold outside Japan. The Naked is the one people want — it is genuinely strange-looking in a way that has aged extremely well.
What We Could Not Verify
- The pre-2021 Atrai cargo van (S220V, S230V, S320V, S330V). The Atrai page covers only the 2021-onward Hijet-based S700V and S710V. The older van may share data with the Hijet Cargo page rather than having its own listing; we did not chase it, since the brief covered the Wagon.
- Whether the Atrai van’s figures match the Wagon’s. Both should be 4×100 / 54 on a shared kei platform, but we confirmed only the Wagon.