RockShox Shock Hardware 8X21.8

$15.00

In Stock

RockShox 8X21.8 rear shock mounting hardware is a 3-piece 1/2" kit (Part #11.4118.091.807) offering OEM fit and reliable, corrosion‑resistant construction for rear suspension service and upgrades.

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Product Details

Overview & Technology

RockShox Shock Hardware 8X21.8 is a precision 3-piece rear shock mounting kit designed to restore factory fit and function to your rear suspension. The kit corresponds to RockShox Part #11.4118.091.807 and matches SRAM model ID RS-SPP-A0 for direct OEM compatibility. The set is manufactured to close tolerances for a snug, rattle-free interface between shock eyelet and frame. Components are machined from high-strength steel and finished with a protective plating to resist corrosion and wear, ensuring long service life in wet, muddy or high-mileage conditions.

Key Features & Benefits

Purpose-built 3-piece design: The kit includes the pin, spacer and bushing(s) sized 1/2" (8 x 21.8mm) to replicate factory geometry. This eliminates play and preserves correct suspension kinematics. Durable construction delivers real-world advantages: • Hardened steel pin for strength under repeated load. • Precision spacers/bushings for quiet operation and correct alignment. • Corrosion-resistant finish for longevity in all-season riding.

Fit, Size & Compatibility

This 8X21.8 kit is specified for rear shocks that accept a 1/2" pin with an 8mm diameter and a 21.8mm overall width — verify these dimensions against your frame and shock eyelets before ordering. RockShox Part #11.4118.091.807 and SRAM RS-SPP-A0 ID indicate OEM matching to a range of RockShox rear shock models and compatible frames. Because mounting standards vary between brands and model years, cross-check the pin diameter and spacer length with your shock's service manual or measure the existing hardware to confirm fit. If your shock uses bushings of a different internal diameter or a different spacer length, this kit will not be a direct replacement.

Who This Is For

Ideal for mountain bikers, mechanics and trail riders who need a straightforward OEM replacement for worn or lost rear shock mounting hardware. This is a must-have part for suspension refresh jobs where eliminating slop and metal-on-metal wear restores handling precision. If you're servicing a full-suspension mountain bike and want reliable, factory-equivalent mounting components without swapping the entire shock, the RockShox 8X21.8 kit provides the correct fit, strength and corrosion resistance for aggressive trail, enduro and all‑mountain use.

Key Features

✓ OEM RockShox part #11.4118.091.807 for direct replacement and fit
✓ 3-piece 1/2" mounting kit sized 8 x 21.8mm for rear shocks
✓ Hardened steel pin and precision spacers for long-lasting strength
✓ Protective corrosion-resistant plated finish for wet conditions
✓ SRAM model ID RS-SPP-A0 compatibility for cross-referencing
✓ Lightweight service kit — small weight and compact shipping
✓ Restores factory alignment to eliminate suspension play

Product Identifiers

Vendor Item #	11.4118.091.807
UPC	710845868030

Frequently Asked Questions

What exactly comes in the 3-piece kit?

The Shock Hardware 8X21.8 kit includes the mounting pin, the spacer and the bushing(s) sized to create a 1/2" (8 x 21.8mm) mounting assembly. These three components replicate the factory link between the shock eyelet and the frame or linkage.

Is this compatible with my RockShox rear shock?

This kit corresponds to RockShox Part #11.4118.091.807 and SRAM RS-SPP-A0. Check your shock's existing pin diameter and spacer width (8 x 21.8mm). If your current hardware matches these dimensions, this is the correct OEM replacement.

Can I use these on other brands of shocks or frames?

Possibly, if the receiving eyelets accept a 1/2" pin and have a 21.8mm width. Always measure the pin diameter and spacer length on your bike before purchasing — mismatched sizes can lead to poor fit or damage.

Do I need any special tools to install this hardware?

Installation typically requires a bench vise or press for gentle insertion, appropriate hex tools for any retaining fasteners, and torque spec adherence per your shock/frame manual. A press helps avoid bushing damage; use anti-seize or light grease where specified by the manufacturer.

How often should I replace shock mounting hardware?

Replace mounting hardware when you notice play, visible wear, creaks, or corrosion. As a guideline, inspect during annual suspension service or every 100–200 hours of riding; high-mileage or harsh-condition riders may need to replace parts more frequently.

Is this an OEM RockShox part and covered by warranty?

Yes — this listing references the OEM RockShox part number 11.4118.091.807. Warranty coverage depends on RockShox and SRAM policies and whether the part was installed and used according to manufacturer guidance; check RockShox warranty terms for specifics.

Buying Guide

When buying shock mounting hardware, always match three key dimensions: pin diameter, spacer (eye-to-eye) width, and bushing inner diameter. OEM part numbers and SRAM/RockShox model IDs are the quickest way to confirm compatibility. If you can’t find documentation, remove and measure the existing hardware or take your bike to a trusted mechanic. Choose steel pins and precision spacers for heavy use and aggressive trail riding; look for corrosion-resistant finishes if you ride in wet or salty conditions. Replace mounting hardware whenever you service the shock or see signs of wear — it's a small part that preserves suspension performance and ride feel.

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