M139 - FRONT SHOCK SPRING 6.67T (MEDIUM/2pcs)

Spare part for TS151

The belt roller set will prevent skipping of rear belt of IF14.
When it occurs deflection under huge load on the belt, helps the belt to keep at proper position.
It provides stability of traction and brake control. It lengthens the life of belt.
※No combined usage with T095 REAR BALANCE WEIGHT.

Optional Parts (IF15 / IF15W / IF15-2 / IF15-2W)

The gear tooth counts have been optimized to allow the OS 12TG engine to operate within its most efficient RPM range.
With a wider range of gear ratio options available, it is now possible to achieve an even better matched setup.

A long version has been added to the INFINITY Hex Wrench Driver Series lineup.
The new type is 20 mm longer than the previous one, allowing for a wider range of use.

Cool carbon fiber ruler with 5-star INFINITY logo.
Made of carbon fiber, which is strong, lightweight, and has no distorstion due to heat, allowing for accurate measurements.
Available in two sizes: 15 cm and 30 cm.

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.

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.

Using an aluminum rear differential case cover provides a secure fit, enhances the differential case's sealing properties and improves consistency during oil changes. When changing oil viscosity, the difference will be more clearly noticeable in the driving feel. The rear end appearance also gets a major upgrade!

Standard spur gear of the IF14-2 kit.

The 45T spur gear contributes to boosting the top speed of your vehicle and may potentially reduce fuel consumption under specific conditions. Additionally, it aids in achieving a smoother power delivery on low-traction tracks.