RockShox ISOStrut 100hr Kit

$25.00

In Stock

RockShox ISOStrut 100hr Kit contains air can seals, sealhead seals, glide rings and service grease/oil for Trek Isostrut A1+ (2024+). Essential 100‑hour rear shock maintenance.

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Product Details

Overview & Technology

Keep your Trek ISOStrut performing like new. The RockShox ISOStrut 100hr Kit (SRAM ID: RS-SVC-50H-A1) is a factory-designed service pack that refreshes internal seals, glide rings and lubrication on the Trek Isostrut A1+ rear suspension (2024+). The kit addresses the parts that wear with normal use: air can seals, sealhead seals and low‑friction glide rings, plus the grease and oil you need to complete the job. Engineered for durability and precise damping response. Components are made from abrasion-resistant elastomers and precision-molded glides that control friction and oil migration. Replacing worn seals and glide rings reduces stiction, prevents oil blow-by and restores the consistent small-bump sensitivity and mid-stroke support riders expect from modern rear shocks.

Key Features

What’s included: air can seals, sealhead seals, glide rings and the specified service grease/oil. Note: Trek frame seals are not included—this kit services the ISOStrut internals only. • Factory-matched seal compounds for temperature and wear resistance • Precision glide rings to reduce stiction and extend service intervals • Correct grease and damping oil so service returns OEM performance • SRAM Model ID RS-SVC-50H-A1 for easy cross-reference during ordering

Fit & Compatibility

Direct fit for Trek ISOStrut A1+ (2024 and newer) — designed specifically for the newer Isostrut chassis used on select Trek models. If your frame uses the A1+ ISOStrut, this is the OEM-recommended 100-hour service kit. Not compatible with older ISOStrut variants or third-party proprietary frames. This kit does not include Trek frame seals, so if your service requires outer frame/external seals you'll need to source those Trek-specific parts separately. Use SRAM model ID RS-SVC-50H-A1 or RockShox part number 00.4318.037.013 to confirm fit before purchasing.

Who It's For

This kit is aimed at mountain bikers who own Trek frames equipped with the ISOStrut A1+ rear shock and want to maintain peak suspension performance. It's ideal for home mechanics comfortable with rear shock disassembly or suspension techs performing routine 100‑hour interval services. If you ride frequently in wet, muddy, or dusty conditions, or you notice increased stiction, oil weeping, or degraded damping feel, this kit gives you the OEM parts to restore smooth travel and consistent damping response between full rebuilds.

Key Features

✓ OEM RockShox seals and glide rings for precise performance restoration
✓ Includes grease and damping oil specified for ISOStrut internals
✓ Designed for Trek ISOStrut A1+ rear suspension (2024 and newer)
✓ SRAM model ID RS-SVC-50H-A1 for accurate cross-referencing
✓ Reduces stiction and prevents oil blow-by for consistent travel
✓ Does not include Trek frame seals — internal service parts only
✓ Lightweight packaged kit ideal for shop or at-home servicing

Product Identifiers

Vendor Item #	00.4318.037.013
UPC	710845893650

Frequently Asked Questions

How often should I use this 100hr kit?

RockShox recommends a 100‑hour lower-level service for ISOStrut systems to replace seals and grease and maintain performance. For most riders this equates to roughly one full season of regular riding—more often if you ride in mud or heavy rain.

What exactly is included in the kit?

The kit includes air can seals, sealhead seals, glide rings and the specified grease and damping oil for ISOStrut internals. It does not include Trek frame/external seals or any hardware beyond the internal service parts.

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

A competent home mechanic with the right tools can perform the 100‑hour service; however, correct disassembly, lubrication, torqueing and air spring setup are essential. If you’re unsure, a suspension tech or bike shop can complete the service and verify performance safely.

Is this compatible with older ISOStrut models?

No. This kit is specifically for the Trek ISOStrut A1+ (2024+) design. Older ISOStrut variants and non-Trek shocks use different seal and glide geometries, so confirm SRAM ID RS-SVC-50H-A1 or RockShox part number 00.4318.037.013 before ordering.

Will this kit improve sag and damping feel?

Replacing worn seals and glide rings reduces stiction and oil leakage, which restores small-bump sensitivity and consistent damping. While it won’t change spring rate, restoring proper lubrication and seals often results in a more supple feel and consistent sag behavior.

Do I need any special tools or fluids?

You’ll need basic shock service tools: torque wrench, seal drivers, clean rags, isopropyl alcohol for cleaning, and a shock pump. The kit supplies the specific grease and oil required for the service, but confirm volumes from the service manual.

Buying Guide

When selecting a rear shock service kit, match the kit to your shock model and production year—manufacturer part IDs (here: RS-SVC-50H-A1 / 00.4318.037.013) make that easy. For ISOStrut owners, prioritize OEM seal compounds and glide rings to preserve factory damping characteristics and longevity. If you ride in adverse conditions or log heavy hours, pair the 100‑hour kit with a frame seal inspection. Consider professional installation if you’re missing tools or the manufacturer’s service manual, as correct lubrication and torque are key to safe, consistent suspension behavior.

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