Losi JRX2 Rear H Arms (2)

Losi JRX2 Rear H Arms (Pair)

Part No: JCS-0168

Product Overview

The JC Racing Products JRX2 Rear H Arms are precision injection-moulded, race-style front suspension arms designed specifically for the Losi JRX2 range of vehicles. These arms replace the original 5 link suspension set up and offer a completely different handling characteristic. 

As with many original Losi designs, these arms are highly versatile and remain interchangeable across the JRX2 platform family, making them an excellent choice for restorations, vintage racing, or performance-correct builds.

Key Features & Specifications

• Manufactured to original JRX2 geometry, with subtle refinements to improve strength and durability
• Precision injection-moulded Nylon 6 
• JC Racing chamfered detailing for an authentic race look
• Designed and manufactured in the UK
• Supplied as a pair
• Non handed as with most JC Racing Arms. They can be used on both the left and right hand side
• Colour: Black only

Manufacturer’s Notes:

Minor fitting or finishing may be required depending on the age, wear, or condition of the original chassis and suspension components.

Losi Release History

JRX2

Release Date: 1988

Key Features

• Graphite chassis
• 5-link rear suspension
• Real rubber tyres
• Low rotating mass transmission

Notes

The buggy that started it all for Team Losi. The JRX2 introduced an innovative 5-link rear suspension, setting it apart from competitors at the time.

Unlike the Associated RC10, which featured a stamped aluminium chassis, the JRX2 was supplied with a graphite plate chassis, highlighting Losi’s early focus on performance and lightweight design.

This original platform went on to form the basis for three additional buggy variants and three trucks, establishing the foundation of the Losi racing lineup.

JRX2-Pro

Release Date: 1990

Key Features

• Longer graphite chassis
• H-arm rear suspension
• Long front and rear shocks

Notes

The JRX2-Pro was the direct evolution of the JRX2. It introduced longer front shocks, a design direction that was later reversed in subsequent models.

The original 5-link rear suspension was replaced with a solid H-arm, improving durability and consistency. Additional updates included a revised two-piece battery holder, stronger steering bellcranks, and a move from spoked wheels to solid wheels featuring the Team Losi logo.

JRX2-Pro SE

Release Date: 1992

Key Features

• Molded composite chassis
• Revised shock towers
• Slipper transmission
• Swept front suspension arms

Notes

The JRX2-Pro SE built upon the Pro platform with significant updates. Most notably, it introduced new swept composite front arms, improved shock towers, and a slipper transmission.

Later versions were also supplied with the retrofit XX transmission. The molded composite chassis offered two wheelbase options and should not be confused with the Junior 2 chassis—it is a different composite design with additional rear mounting holes to accommodate the extended wheelbase.

This model also featured revised shock cartridges, further improving suspension performance.

Junior 2

Release Date: 1990

Key Features

• Molded composite chassis
• Plastic shock towers
• Bushings in place of bearings

Notes

The Junior 2 was Team Losi’s first lower-cost buggy kit, designed to make competitive RC racing more accessible.

It introduced Losi’s first molded plastic chassis, replacing the flat graphite plates used in earlier models. Cost savings were achieved through the use of plastic shock towers, bushings instead of full bearings, and simple threaded-rod linkages.