Kyosho IF218 Joint Cup FM185 - 4mm L=17mm pair for drivetrain repairs  [KY-IF218]

Sturdy joint cup built for RC drivetrain reliability

The Kyosho IF218 Joint Cup is a small but vital part for keeping your RC running smoothly. Machined to match drivetrain tolerances, this cup links rotating components and preserves alignment. With a bore of Φ4mm and length L=17, it installs cleanly into compatible assemblies and gives predictable performance under load.

Ideal use for racers and field bashing

This joint cup suits hobbyists who push their models on track or tackle rough terrain. Its solid build tolerates frequent stress from fast cornering and jumps, helping to reduce drivetrain slop and premature wear when used as intended.

Fitment advice and replacement uses

Use the Kyosho IF218 Joint Cup when swapping out worn drivetrain links or when upgrading to maintain tighter steering and power transfer. It is straightforward to replace and works as a direct spare for matching shaft and joint assemblies.