RockShox Reverb B1 400 Hour Service Kit
RockShox

RockShox Reverb B1 400 Hour Service Kit

$95.00
In Stock

Official RockShox 400-hour/2-year service kit for Reverb B1 (2017) dropper posts featuring an upgraded IFP and OEM-quality seals to restore smooth, leak-free action. Requires Post Bleed Tool, Oil Height Tool & IFP Height Tool.

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Product Details

Reverb B1 400-Hour Service — Overview & Technology

Keep your Reverb B1 performing like new. This RockShox 400-hour/2-year service kit is designed to refresh the internal hydraulics of the Reverb B1 (2017) dropper post, replacing wear items that let air and oil performance slip over time. The kit includes an upgraded Internal Floating Piston (IFP) engineered to improve stability and reduce cavitation during repeated use. The upgraded IFP is a precision-machined, hard-anodized aluminum component paired with OEM-quality sealing materials. Together they restore consistent damping, prevent oil migration, and reduce friction so your post returns to smooth, reliable extension and return—real benefits for technical climbs, long descents, and daily trail use.

Key Components & What the Kit Includes

Service-level parts built to RockShox standards. The Reverb B1 400-hour kit centers on a new upgraded IFP plus a full set of replacement seals and o-rings manufactured to OEM tolerances. These components are made from durable materials—hard-anodized aluminum for the piston and high-performance elastomers for the seals—chosen to resist wear, swelling and degradation from hydraulic fluid exposure. Note: This kit requires the RockShox Post Bleed Tool, Oil Height Tool and IFP Height Tool for correct installation and calibration. If you don’t own the required tools, a professional shop service is recommended to ensure correct oil height, piston position and a leak-free bleed.

Fit, Compatibility & Installation Notes

This RockShox part (Manufacturer Part # 11.6818.031.002, SRAM Model ID SP-SVC-T-A2) is specified for Reverb B1 2017 dropper posts. Check your post’s model year and markings before purchasing; using the correct service kit ensures proper fit and function of the piston and sealing surfaces. Installation requires precision tools and attention to oil height and IFP position. Improper installation can lead to popping, spongy feel, or leaks. If you’re comfortable with suspension-level service and have the Post Bleed Tool, Oil Height Tool and IFP Height Tool, this kit enables a full 400-hour refresh at home. Otherwise, book a professional shop service.

Who This Kit Is For

This kit is aimed at mountain bikers, mechanics and shops who maintain Reverb B1 posts on regular service intervals. If your post has reached roughly 400 hours of ride time or two years in service, you’ll see measurable improvements in smoothness, return speed, and seal reliability after this refresh. It’s also a smart buy for riders prepping a bike for extended bikepacking, guiding duties, or heavy trail use where reliable seatpost action is essential. Buying the OEM RockShox service kit keeps internal geometry and materials true to factory spec, maximizing longevity and retaining resale value.

Key Features

  • ✓ Official RockShox 400-hour / 2-year service kit for Reverb B1 (2017)
  • ✓ Includes upgraded, precision-machined hard-anodized aluminum IFP
  • ✓ OEM-quality seal and o-ring set to restore leak-free operation
  • ✓ SRAM Model ID SP-SVC-T-A2 — exact-fit factory replacement parts
  • ✓ Requires Post Bleed Tool, Oil Height Tool and IFP Height Tool for service
  • ✓ Restores smooth action, reduces cavitation and improves reliability
  • ✓ Small, lightweight box — ships quick (5.3" x 2.8" x 1.4", 0.1 lb)

Product Identifiers

Vendor Item # 11.6818.031.002
UPC 710845783227

Frequently Asked Questions

What exactly is included in the Reverb B1 400-hour service kit?

The kit includes an upgraded Internal Floating Piston (IFP) plus a full set of replacement seals and o-rings sized for the Reverb B1 (2017). These OEM-grade components replace worn items during a 400-hour/2-year refresh. Specific accessory tools and any new hydraulic fluid are not included.

Can I install this kit at home or do I need a shop?

You can perform the service at home if you have suspension-level experience and the required tools: RockShox Post Bleed Tool, Oil Height Tool and IFP Height Tool. These tools are necessary to set oil/IFP heights and bleed the system correctly. If you’re unsure, a professional shop service will ensure correct calibration and leak-free operation.

How often should I service my Reverb B1 dropper post?

RockShox recommends a service interval of approximately 400 hours of ride time or every two years, whichever comes first. Riding in wet, muddy, or dusty conditions may require more frequent attention and seal changes to maintain peak performance.

Is this kit compatible with all Reverb models?

No — this kit is specifically for the Reverb B1 (2017) series and is identified by SRAM Model ID SP-SVC-T-A2. Other Reverb generations and model years use different internal dimensions and service components. Verify the model and year of your post before purchasing.

What happens if I don’t use the correct tools during installation?

Skipping the specified tools or improper setup can lead to incorrect oil height, mispositioned IFP, spongy or popping feel, and potential leaks. Using the correct tools ensures the IFP and oil are set to factory tolerances for reliable operation.

Will replacing the IFP and seals improve performance?

Yes. Replacing the IFP and seals restores internal tolerances and fluid management, reducing cavitation and friction. Riders will notice smoother actuation, more consistent return speed, and reduced chance of air ingress or oil seepage.

Buying Guide

When buying a dropper post service kit, choose OEM RockShox kits for exact-fit components, matched materials and factory tolerances. Look for kits that specify the service interval (400 hours / 2 years for this Reverb B1 kit) and list the model years they support to avoid compatibility issues. If you’re a home mechanic, factor in the cost of specialized tools. For one-off services or if you’re missing the RockShox tools, a professional shop service may be more cost-effective and guarantees correct oil height, piston calibration and bleed procedures.

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