*USED* Rear Fork Main Shaft Screw - 40Cr

Meet the reliability you want from a used part: the Rear Fork Main Shaft Screw in sturdy 40Cr alloy steel. This component, sourced as a used item, brings proven strength and heat-treated hardness to your rear suspension assembly, helping you keep rides smooth and secure even after miles of use.

Why 40Cr matters for a rear fork screw

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  Durable alloy — 40Cr provides excellent toughness and fatigue resistance, making it well-suited for the dynamic loads and vibrations of rear forks.
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  Heat-treated performance — engineered to maintain structural integrity under stress, so you won’t lose clamping force or alignment over time.
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  Reliable in maintenance scenarios — a solid replacement option when restoring a rear fork assembly or stocking a spare parts kit for ongoing bike or motorcycle repair.

What you get

• One used Rear Fork Main Shaft Screw crafted from 40Cr alloy steel.
• Ready-to-install candidate that supports quick, cost-conscious maintenance or repairs.

Fit, compatibility, and installation tips

• Compatibility varies by model — verify thread size and length against your rear fork assembly and service manual before installing.
• Inspect the screw for any wear, thread deformation, or corrosion before use; replace if damaged to prevent overtightening or misalignment.
• Clean threads thoroughly and apply a light anti-seize compound or appropriate lubricant to ease future removal and prevent galling.
• Torque to the specification outlined in your service manual. Avoid over-tightening, which can strip threads or compromise the fork’s alignment.

Ideal for whom and practical use cases

This used screw is an excellent choice for DIY enthusiasts, repair shops, and riders who maintain bikes or motorcycles with rear fork assemblies. It’s especially valuable as a cost-effective spare part for daily riders, weekend project bikes, or restoration projects where authentic materials and reliable performance matter without paying for a brand-new component.

Why choose this over generic replacements

Choosing a screw made from 40Cr and heat-treated for toughness provides a tangible difference in long-term reliability, especially in high-vibration areas like the rear fork. This part combines proven material science with practical, real-world use, offering peace of mind during maintenance and a dependable link in your suspension system.