RockShox Pike DJ A2 Shaft 100mm
RockShox

RockShox Pike DJ A2 Shaft 100mm

$45.00
In Stock

OEM RockShox Pike SA A2 air shaft (100mm) — a precision replacement shaft for Pike DJ forks. Restores air spring function and factory travel with exact-fit performance.

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Product Details

Overview & Technology

RockShox Pike DJ A2 Shaft 100mm (Mfg. Part #11.4018.026.018, SRAM Model ID FS-SPP-A0) is the factory air-spring shaft designed for Pike SA forks with 100mm travel in the A2 configuration. This shaft is a direct OEM replacement engineered to RockShox tolerances so your fork rebuild or repair returns to the ride characteristics it had fresh from the factory. Precision manufacturing and design matter in suspension internals — this shaft is CNC-machined to exact diameters and surface finishes to maintain proper seal engagement, consistent air spring volume, and reliable damping behavior. Using an OEM shaft reduces stiction, prevents premature seal wear, and helps the fork hold pressure and feel consistent across repeated rides.

Key Features & Benefits

Engineered for consistent performance. The Pike DJ A2 shaft provides the dimensional accuracy required for reproducible air spring action and sealing. That translates to predictable sag setup, smoother small-bump compliance, and confidence when charging features on park or trail. • OEM fit: Direct replacement for Pike SA 100mm A2 assemblies — no machining or modification needed. • Precision finish: Machined surfaces ensure correct seal life and minimal stiction for responsive travel. • Durability: Built to withstand repeated rebuild cycles and the rigors of aggressive riding.

Fit, Compatibility & Installation

This shaft is specified for RockShox Pike SA forks with 100mm travel and A2 spring configuration. Confirm compatibility by matching the manufacturer part number 11.4018.026.018 or SRAM Model ID FS-SPP-A0 to your fork's service manual or parts diagram before ordering. Installation requires fork disassembly and access to the air spring assembly — if you're comfortable with routine fork service you can replace the shaft during a rebuild using standard RockShox service procedures. We recommend new seals and lubricants when performing this work; if you prefer professional service, any trained suspension tech can install and test the shaft for correct air pressure and travel.

Who This Part Is For

This part is aimed at riders who own RockShox Pike DJ/Pike SA forks and need an exact replacement during a rebuild or repair. It's ideal for park, jump, and aggressive trail riders who demand stable, repeatable fork action after service. Mechanics and home wrenchers performing maintenance will appreciate the direct-fit nature and OEM spec tolerances — keep one on hand as a spare for quicker turnaround during service windows or to restore a fork damaged by impact or wear.

Key Features

  • ✓ OEM RockShox replacement for Pike SA forks, Part #11.4018.026.018
  • ✓ Designed for 100mm travel in A2 air-spring configuration
  • ✓ CNC-machined shaft for accurate diameter and surface finish
  • ✓ Durable, corrosion-resistant finish to extend service life
  • ✓ Restores factory air-seal engagement and reduces stiction
  • ✓ Direct swap during standard fork rebuild — no modification
  • ✓ Lightweight service part with compact shipping dimensions

Specifications

Misc 11.4018.026.018, Pike SA, Air shaft, 100-26

Product Identifiers

Vendor Item # 11.4018.026.018
UPC 710845754845

Frequently Asked Questions

Is this shaft a direct replacement for my Pike fork?

Yes — this is the OEM-style shaft specified for RockShox Pike SA with 100mm travel in the A2 configuration. Verify compatibility by matching the part number 11.4018.026.018 or SRAM Model ID FS-SPP-A0 to your fork's parts list.

What tools are needed to install the shaft?

Installing this shaft requires fork disassembly tools, a torque wrench, and basic suspension service tools such as snap ring pliers and appropriate seals/grease. Follow RockShox service manuals or have a qualified suspension tech perform the installation if you’re unsure.

Should I replace any other parts when fitting this shaft?

We recommend replacing wear items — seals, foam rings, and lubrication — during any air-spring rebuild. Fresh seals and correct fork oil help ensure the new shaft performs to spec and prolongs the life of the assembly.

Will this shaft change my fork’s spring rate or travel?

No — this shaft is a like-for-like OEM replacement and will not alter the intended spring rate or travel when installed correctly. It preserves factory air volume and travel characteristics for the Pike SA 100mm A2 setup.

Can I use this part on other RockShox models?

This shaft is intended for Pike SA 100mm A2 configurations. Other RockShox models or different travel/spec versions use different shaft dimensions and part numbers — always confirm part compatibility with your model’s service documentation.

Do you ship internationally and how long does delivery take?

Forest Bikes ships this small, lightweight part quickly. Delivery times depend on your location and selected shipping option; domestic shipments typically arrive within a few business days. Check our shipping policy at checkout for international options and estimated transit times.

Buying Guide

When buying suspension internals like an air shaft, the most important factors are exact part match and the condition of associated wear items. Confirm the manufacturer part number (11.4018.026.018) and the SRAM Model ID (FS-SPP-A0) to ensure the shaft is correct for your Pike SA 100mm A2 fork. Buy seals, foam rings, and the recommended lubricants at the same time to complete a proper rebuild. If you’re not confident performing fork disassembly, factor in the cost of professional service. A correctly installed OEM shaft restores factory performance and saves time and frustration compared with guessing at non‑OEM or mismatched parts.

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