R0389 - MAIN SHAFT STIFFENER (IF18-3/CARBON)

The material and coating have been updated to significantly improve crash resistance and durability compared to the standard items. The shaft is highly durable and resistant to scratches even after long periods of use.

Compared to the standard plastic rear body mount, this new carbon mount increases the height of the body by 3mm (Almost the limit within the regulation of IFMAR). In addition, the cross-sectional shape of the carbon plate and A7075 adapter matches the latest body shapes such as XTREAM's Diablo and Protoform's R19 without any gaps. This allows the downforce to be transferred to the tires without loss and improving rear grip. The left and right carbon plates can be fine-tuned with set screws to accommodate individual body shapes. The connection to the car body can be made in three step width directions, and also absorbs the twisting of the mounting part when toe-in is applied.

Shock mounting is 1.5mm outside from the R0355N included in the kit.

IF18-3 setting parts

Machined from high quality A7075 aluminium material. IF18-2 knuckle upper and lower insert. Prevents misalignment during a crash and enhances steering response during cornering. This bushing is used for -1mm/+1mm (trail/reverse trail) of the upper pivot.

When assembling these parts first remove the front knuckle upper. Place the offset bush into the knuckle upper from the outside. Then pass both M3x14mm slim head screws through the knuckle upper from the inside and tighten the 3mm nylon nut on the outside.

Weight has been reduced by F:0.3g R:0.5g, removing this unnecessary material has improved rotational balance. Reduced clearance in the thrust direction helps maintain wheel stability during running.

Front Shock Stay LD(Lay Down) that offers a position one step lower than the conventional R0081 (included in the kit). The center position of the R0336 is the same as the lower hole of the R0081. It's designed to be lower so that it does not interfere with the body even when a modern body is installed. Thickness is 2.5mm.

This Urethane belt provides high durability under harsh conditions such as driving on dusty or dirty tracks, high temperatures or long finals. The belt teeth are hard and highly accurate offering good compatibility with the tooth profile and material of the pulleys helping to maintain excellent drive efficiency.

This light weight lip spoiler set has a reduced weight of approx 5g including fastener and nut. Recommended for use with a lightweight bodyshell. Special carbon style features a printed INFINITY logo.

R0349 contents sold in separately. This set is also required to integrate R0349 into IF18-2.

Spare part for R0390.

A carbon stiffener that can be added to the front lower arm to increase rigidity. Increased steering response and higher cornering speeds can be achieved in certain conditions. Its also possible to adjust the flex and rigidity by the number of mounting screws used.