RockShox Air Shaft - Revelation 140-29/27 A5
RockShox

RockShox Air Shaft - Revelation 140-29/27 A5

$43.00
In Stock

Genuine RockShox replacement Air Shaft for Revelation 140mm (29/27) and Reba Reba A7 130–150mm forks. Restores Solo Air spring performance and ride feel with OEM fit.

Add to Cart
🚚 Fast Shipping 🔒 Secure Checkout ↩ Easy Returns

Product Details

Overview & Technology

Genuine RockShox Air Shaft engineered for the Solo Air spring used in Revelation 140mm (29/27) forks and Reba A7 130–150mm (2018+). This OEM shaft (manufacturer part # 11.4018.026.026, Forest product #942423) replaces the internal air piston to restore factory air-spring sealing, negative/positive balance and consistent travel. Constructed from precision-machined aluminum with a hard-anodized surface finish and high-quality elastomeric seals, the shaft is designed for low friction and longevity inside the fork leg. The part interfaces directly with RockShox Solo Air assemblies to maintain predictable progression and easy setup across varied terrain.

Key Features & Benefits

Durable, low-friction construction: the machined aluminum shaft and hard-anodize resist wear and reduce stiction for smoother initial stroke and more consistent damping feel. Riders notice crisper small-bump compliance and more reliable travel measurements after replacing a worn shaft. OEM fit and finish: this is a factory RockShox component engineered to the original tolerances. Replacing a degraded air shaft restores proper air-spring balance, helps eliminate pressure leaks, and preserves your fork's intended spring curve and sag behavior.

Fit, Compatibility & Installation

This Air Shaft is compatible with RockShox Revelation forks (140mm travel, 29/27" wheel spec) and Reba A7 forks with 130–150mm travel from 2018 onward that use the Solo Air system. Confirm compatibility by matching your fork model/year and current internal assembly before purchase — part number 11.4018.026.026 is stamped for correct application. Installation requires partial disassembly of the fork (lower legs removed) and basic suspension service tools: torque wrench, seal driver, and fork-specific hex bits. We recommend replacing the shaft during a full lower-leg service and installing new foam rings and dust seals; professional service is advised if you’re not comfortable with internal fork work.

Who This Part Is For

This Air Shaft is aimed at trail and all-mountain riders who want to maintain or restore the performance of their RockShox Revelation or Reba A7 forks. It's ideal for owners who have noticed air leak symptoms, inconsistent sag, excessive play, or worsened small-bump sensitivity. Also suited to bike shops and home mechanics performing regular fork servicing or rebuilds — having an OEM replacement part simplifies troubleshooting and ensures the fork retains factory behavior after repair.

Key Features

  • ✓ Genuine RockShox OEM replacement air shaft, part #11.4018.026.026
  • ✓ Precision-machined aluminum shaft with hard-anodized surface for durability
  • ✓ Designed for Solo Air systems in Revelation 140 (29/27) and Reba A7 130–150mm
  • ✓ Restores proper positive/negative air balance and consistent sag
  • ✓ Reduces stiction for improved small-bump sensitivity and smoother action
  • ✓ Lightweight, direct-fit replacement — ships at 0.1 lb with compact packaging
  • ✓ Recommended replacement during lower-leg service and seal kit change

Specifications

Misc Revelation (140mm 29/27) Reba A7 130-150mm

Product Identifiers

Vendor Item # 11.4018.026.026
UPC 710845795428

Frequently Asked Questions

Will this air shaft fit my Revelation fork?

This shaft fits RockShox Revelation forks specified as 140mm travel for 29"/27" wheels and Reba A7 forks with 130–150mm travel (2018+). Confirm your fork model/year and the Solo Air configuration before ordering; if in doubt, check your fork's service manual or contact our tech team.

Can I install this at home or should I go to a shop?

Installation involves disassembling the fork lowers and working with internal seals and air components. Experienced home mechanics with the right tools can do the job, but if you lack a torque wrench, seal drivers, or suspension experience, professional service is recommended to avoid damage and ensure correct reassembly.

Do I need any additional parts to complete the repair?

We recommend replacing the lower-leg service items (foam rings, dust seals, O-rings) whenever you replace the air shaft. A full lower-leg service kit and appropriate suspension grease will ensure optimal sealing and longevity.

How will I know the shaft needs replacement?

Common signs include air pressure loss, inconsistent sag, excessive stiction or gritty movement in the first part of the travel, and observable oil leakage from the lowers. If your fork feels 'flat' or loses pressure between rides, the air shaft and seals are likely compromised.

Is this an OEM part and does it come with warranty?

Yes — this is an official RockShox OEM air shaft (manufacturer part #11.4018.026.026). Warranty coverage follows RockShox and Forest Bikes return policy terms; check the included documentation or contact customer support for specifics about warranty eligibility and claims.

Can this part upgrade fork performance or change travel?

This shaft is a direct replacement designed to restore original performance, not to increase travel or change the fork's intended spring curve. For travel changes or performance upgrades, consult RockShox specifications and consider approved upgrade kits or cartridge swaps.

Buying Guide

When buying an air shaft for a RockShox fork, priority one is compatibility: match the part number and the fork's travel/wheel-size spec. Check your fork model year and Solo Air/Charger configuration — installing the wrong shaft can affect spring curve and sealing. Always pair the shaft replacement with a lower-leg service kit (foam rings and dust seals) to ensure reliable sealing and extend part life. If you ride frequently in wet or gritty conditions, plan on inspecting or replacing internal air components every 1–2 years, or sooner if you notice leaks or sag inconsistencies. When in doubt, have a qualified suspension tech perform the swap — professional reassembly ensures correct torques, seal seating, and safe function on trail.

Ready to order?

Shop with confidence at Scenders — premium cycling parts, fast shipping.

View Full Product