XTRIG 500010400101 Rear Shock Pre-Load Adjuster with Worm Drive Mechanism

The XTRIG 500010400101 Pre-Load Adjuster is a precision-engineered mechanical shock preload adjuster designed for off-road and motocross riders who demand quick, accurate suspension tuning. It replaces the stock double ring or single ring and pinch clamp setup with a purpose-built billet housing and worm drive gear system, making spring preload adjustments fast and effortless.

Unlike hydraulic alternatives, this adjuster relies on a proven mechanical worm drive design — no oil, no seals, and no risk of leaks. Simply use an 8mm T-handle or socket to dial in your preload in seconds, even between sessions or on the trail. The adjuster travels the complete length of the shock body's threads, providing a wider range of adjustment than conventional ring-style adjusters.

XTRIG engineered this adjuster with the harsh off-road environment in mind. The inner ring features a machined relief area that resists dirt and debris intrusion, keeping the mechanism functioning reliably in muddy and dusty conditions. Its lightweight billet construction adds minimal mass to the rear suspension assembly.

Key Features:

• Mechanical worm drive design — no hydraulics, no oil, no seals
• Utilizes the full thread length of the shock absorber for maximum adjustment range
• Adjustable with a standard 8mm T-handle or socket — no special tools required
• Fast preload changes without removing the wheel or placing the bike on a stand
• Dirt-resistant machined inner ring design
• Lightweight billet aluminum construction
• Patent pending design trusted by factory KTM and Husqvarna race teams

The XTRIG Pre-Load Adjuster is the go-to suspension tuning upgrade for serious motocross and off-road riders looking to fine-tune sag settings quickly and precisely, whether adapting to changing track conditions, accommodating different rider weights, or optimizing balance for various terrain types.