Transmission Retaining Ring 25x1.65 for KTM, Husqvarna & GasGas - 77033022100

This genuine OEM retaining ring is a critical component for your motorcycle's transmission system. Measuring 25x1.65mm, it is designed to securely hold gears and washers in place on both the main shaft and countershaft. Using original parts ensures the structural integrity of your gearbox during high-performance riding and racing conditions.

This part fits an extensive range of models including the KTM 250/300 SX and EXC, 350/450 SX-F, and XC-F from 1994 to 2026. It is also compatible with Husqvarna FC 350/450, TC 250/300, and FS 450 models, as well as GasGas MC 250, 350F, and 450F series. Whether you ride a vintage 1990s two-stroke or a modern four-stroke factory edition, this circlip provides the precise fit required for KTM group engines.

Manufactured from high-quality spring steel, this retaining ring offers excellent tension and resistance to deformation. Its precise 1.65mm thickness ensures it seats perfectly within the shaft grooves, preventing lateral movement of transmission components. This reliability is essential for maintaining smooth shifting and preventing internal engine damage.

When overhauling your transmission, it is highly recommended to replace used retaining rings with new ones to ensure maximum holding power. Always use proper circlip pliers during installation to avoid over-stretching the ring, which can lead to premature failure. Ensure the ring is fully seated in its groove before closing the engine cases.

Check compatibility list below to see if this part fits your motorcycle model.