Compared to the kit-standard O-rings, the slightly harder compound generates subtle friction with the shock shaft, enhancing support rigidity.
This helps suppress chassis roll and improves stability on high-grip or flat surfaces.
This update includes:
Newly developed shock pistons
Newly developed shock plastic parts
Newly developed shock shafts
G300 includes the short shock-type shock stay (G215).
Newly Developed Shock Pistons:
The new 4-hole pistons are designed to provide more damping at higher piston speeds, resulting in a more stable car behavior and improved drivability.
The total hole area is the same as the 2 × 1.1 mm or 3 × 0.9 mm pistons, making it easier to quantify and tune your setup.
Newly Developed Shock Plastic Parts:
The damper ends now feature a flanged design, and the spring retainer system has been revised to allow for an additional 2 mm of stroke.
Two types of spring retainers are included: one with the same specification as the previous model, and one that lowers the spring position by 2 mm.
Lowering the spring allows it to move more freely, increasing grip.
Newly Developed Shock Shafts:
With revised shaft lengths—G299: 28.5 mm, G300: 25.5 mm—the new shock shafts, when used in combination with the newly designed plastic parts, enable the IF15-2 to utilize its full shock stroke potential.
Option parts (IF15 / IF15W / IF15-2 / IF15-2W)
A shaft with a length between the conventional G152 short shock shaft (24mm/2 pieces) and the G212 shock shaft (27mm/2 pieces).
Please use this when using the G297.
This component is crafted from 7075-T6 alloy and features a hard coating. Its lightweight design (4.3 grams compared to the steel version's 8.3 grams) allows you to save weight and achieve maximum performance. It can also be installed on the rear hub. Using the M170 on the rear end of your vehicle provides additional support, which is recommended for high-grip and fast tracks.
Individual sale of the clutch bell, which was previously sold as part of R0157 Clutch Bell Guide (with spacer 0.1 0.3).
(Shims are sold separately.)
R0157 has been discontinued.
New stabilizer stopper for IF18-3 front stabilizer.
By making the contact surface with the bearing spherical, smoother movement of the stabilizer is acheived.
Durability has also been greatly improved by using steel.
Available in 2.3, 2.5, and 2.7mm.
Compatible stabilizers
Stopper 2.3mm (R0382S23): 2.0mm, 2.1mm, 2.2mm, 2.3mm
Stopper 2.5mm (R0382S25): 2.4mm, 2.5mm
Stopper 2.7mm (R0382S27): 2.6mm, 2.7mm
Compared to the kit-standard O-rings, the slightly harder compound generates subtle friction with the shock shaft, enhancing support rigidity.
This helps suppress chassis roll and improves stability on high-grip or flat surfaces.
