Japan Racing JR40

Buying Guide for Japan Racing JR40 Rims

The Japan Racing JR40 rims are among the most visually striking models in the range, combining a dense spoke design with a pronounced deep-dish look. Through the combination of a multi-piece appearance and robust construction, this model is primarily aimed at drivers who want to achieve a strong visual presence and a wide vehicle stance.

The JR40 rim is available in various widths and configurations and is suitable for both sporty road vehicles and individually tailored tuning projects. In this buying guide, you will learn about the characteristics that distinguish this model, which sizes are available, and what to consider when choosing the right rim configuration.

Design and Features of the Japan Racing JR40 Rims

The design of the Japan Racing JR40 is based on a twin 7-spoke concept, where a total of 14 spokes extend from the centre in seven symmetrical pairs. This structure provides a particularly dense and powerful look that clearly differs from classic 5 or 10-spoke designs.

A key feature of this model is the pronounced stepped lip, which gives the rim strong visual depth. The spokes deliberately end before the outer edge, clearly focusing on the multi-level rim bed. This effect is complemented by decorative bolts around the centre, creating the look of a classic multi-piece rim.

Compared to open or minimalist designs, the JR40 appears significantly more massive and closed. The high number of spokes ensures that the wheel appears visually "filled", while simultaneously highlighting the depth of the rim bed.

The rim is manufactured using the casting process, resulting in a robust and durable construction that is particularly suitable for everyday use. The focus here is less on minimal weight and more on stability and a striking appearance.

Depending on the rim width, a slight to moderate concave effect can also be achieved. However, this is visually complemented by the deep rim edge, resulting in a particularly three-dimensional and powerful overall impression.

Available Sizes of the Japan Racing JR40 Rims

The Japan Racing JR40 rims are available in 18-inch and 19-inch sizes, specifically targeting sporty vehicles and visually oriented tuning setups.

The 18-inch size is often used in balanced configurations where ride comfort and everyday usability are paramount. Variants in 19 inches, on the other hand, provide a significantly more prominent look and are often chosen for vehicles where design plays a central role.

The best size depends on the specific vehicle and the approved wheel and tyre dimensions.

Width of the JR40 Rims

In addition to the diameter, the rim width also plays a crucial role in selecting the right configuration. The Japan Racing JR40 is available in widths from 8.5J to 11J, offering plenty of scope for individual vehicle setups.

The rim width influences, among other things, the tyre width that can be fitted and how the rim is positioned in the wheel arch. Variants such as 8.5J or 9.5J are often used in balanced setups, while wider rims like 10.5J or 11J allow for a significantly more striking appearance.

A special feature of this model is the combination of rim width and Deep-Step-Lip construction. As the width increases, the rim bed appears visually deeper, enhancing the classic deep-dish effect. At the same time, the high number of spokes ensures that the wheel appears visually "fuller" and fills the wheel arch particularly prominently.

These features make the JR40 particularly interesting for so-called staggered setups, where wider rims are used on the rear axle to achieve a significantly wider and more powerful vehicle look.

Bolt Pattern and Vehicle Compatibility

The Japan Racing JR40 rims are available with various bolt pattern variants, allowing them to be used on many different vehicle platforms. Available bolt patterns include 5x100, 5x105, 5x108, 5x110, 5x112, 5x114.3, 5x115, 5x118, and 5x120.

This selection makes the JR40 rim suitable for both sporty compact vehicles and higher-performance platforms. It is always crucial that the rim's bolt pattern exactly matches the technical specifications of the respective vehicle.

A particular advantage of this model is the availability of so-called blank rims. In these cases, the bolt pattern, centre bore, and offset can be individually adjusted, allowing the JR40 to be configured for vehicles where standardised solutions are not always optimal. This enables very precise adjustment of the rim configuration, especially for projects focused on appearance and fitment.

In addition to the bolt pattern, the centre bore also plays an important role. The Japan Racing JR40 is available with different centre bore diameters depending on the variant, including 72.6 mm and 74.1 mm. In many cases, a larger centre bore is used, which is precisely adapted to the vehicle's hub diameter using spigot rings.

Offset (ET)

In addition to diameter, width, and bolt pattern, the offset (ET) also plays an important role in selecting the right rim. The Japan Racing JR40 is available in an ET range of approximately ET15 to ET35, allowing for a variety of different vehicle configurations.

The offset describes the distance between the wheel centre and the mounting surface of the rim on the wheel hub. A smaller ET number causes the rim to sit further outwards, making the vehicle's track appear wider. A larger ET number, on the other hand, positions the wheel further inside the wheel arch.

In combination with the pronounced Deep-Step-Lip construction, the choice of ET further influences the visual effect in the wheel arch. Depending on the setup, the emphasis on the rim edge and the overall prominence of the rim can be precisely controlled – from a balanced position to a significantly more aggressive stance.

Colours of the JR40 Rims

The Japan Racing JR40 rims are available in selected colour variants, further enhancing the striking deep-dish character of this model. Currently, the rims are available in Black and Silver/Grey.

The Black variant is often chosen to create a strong contrast between the dark centre and the rim edge. This highlights the depth of the step lip particularly well and makes the rim appear more massive overall.

Silver/Grey, on the other hand, emphasizes the structure of the numerous spokes more strongly and provides a more uniform, technically appearing overall look. In combination with the pronounced rim bed, a clear separation is created between the centre and the edge, further accentuating the depth.

The best colour choice primarily depends on the vehicle design and the desired overall impression.

JR40 Rims with CH Certificate

The Japan Racing JR40 rims offered here are supplied with a CH Certificate and a mounting kit. This allows the rims to be fitted to many vehicle models, as corresponding documentation is available for numerous applications that can be considered during the MFK (roadworthiness test) inspection.

The mounting kit typically includes the necessary fasteners and spigot rings, allowing the rims to be professionally mounted on the wheel hub.

Since each rim variant can have different dimensions, widths, bolt patterns, and offsets, it is advisable to check which JR40 configuration is suitable for the respective vehicle before ordering. The 3D Rim Configurator can help find suitable variants for your vehicle.

Price and Delivery Time of the JR40 Rims

The price of the Japan Racing JR40 rims can vary depending on the dimension, width, bolt pattern, and finish. Larger variants such as 19 inches are generally more expensive than smaller versions, as they require more material and are often used on sporty vehicles.

Different rim widths or specific configurations can also influence the price. Therefore, it is worthwhile to compare the different JR40 variants and choose the right combination of size and features.

Most variants of the JR40 rim have a delivery time of approximately 5 to 14 days, depending on the specific dimension and version.

Individual Check Before Ordering

Regardless of whether your vehicle is in standard condition or has modifications, an additional compatibility check before ordering may be advisable.

If there are any uncertainties regarding ET, width, bolt pattern, or MFK-relevant aspects, an individual check can be carried out in direct consultation with our team.

You can contact us quickly via WhatsApp and send us your vehicle model and the desired JR40 rim configuration. This allows technical and legal questions to be clarified before ordering, making the purchasing decision more transparent and secure.