PROX

PROX 8.90mm OD Valve Shim Kit - KTM 350 XCF-W

Maintain Optimal Valve Clearance with the Pro X Valve Shim Kit The Pro X Valve Shim Kit provides a comprehensive solution for maintaining proper valve clearance in KTM 350 XCF-W engines. With a wide range of shim sizes included, this kit ensures maximum durability and less wear for both stock an...

$69.99*
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*Price sourced from Amazon.com. Last updated:Jul 13, 2026.Price and availability are subject to change.

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Overview

Maintain Optimal Valve Clearance with the Pro X Valve Shim Kit

The Pro X Valve Shim Kit provides a comprehensive solution for maintaining proper valve clearance in KTM 350 XCF-W engines. With a wide range of shim sizes included, this kit ensures maximum durability and less wear for both stock and aftermarket cams.

Detailed Specifications:

  • Brand: PROX
  • Shim OD: 8.90mm
  • Sizes: 1.72mm to 2.60mm in .04mm Increments
  • Quantity: 3 Shims per Size (66 Total)
  • Compatibility: KTM 350 XCF-W 2012-2016

Key Features

Works with stock or aftermarket cams.

Specifications

Product Type
Valve Shim Kit
Outer Diameter (OD)
8.90mm
Compatibility
KTM 350 XCF-W
Cam Compatibility
Stock or aftermarket cams

Pros & Cons

👍 Pros

  • Specifically designed to work seamlessly with stock cams in KTM 350 XCF-W engines.
  • Compatible with aftermarket cams, offering versatility for engine modifications and upgrades.
  • Features a precise 8.90mm OD, ensuring accurate fitment for the intended valve systems.
  • Provides a specialized solution for valve train maintenance or performance tuning in compatible motorcycles.
  • Part of a kit, suggesting a comprehensive approach to valve shim replacement or adjustment.

👎 Cons

  • This valve shim kit is designed for a specific outer diameter (8.90mm OD), limiting its compatibility to certain engines.
  • The product is explicitly for KTM 350 XCF-W models, meaning it is not universally applicable to other motorcycle brands or models.
  • While it works with stock or aftermarket cams, the kit might not include all possible shim sizes needed for every tuning scenario.
  • Further details on the range of shim thicknesses included in the kit are not provided, which could be a limitation for precise adjustments.
  • The description does not specify the material composition of the shims, which can be a factor in their durability and wear characteristics.

Frequently Asked Questions

The valve shims in this PROX kit have an outer diameter of 8.90mm.
This valve shim kit is specifically designed for use with the KTM 350 XCF-W.
Yes, these PROX valve shims are designed to work effectively with both stock and aftermarket cams.
The product description states it is a "Valve Shim Kit," implying a range of thicknesses, though the specific range is not detailed.
No, this kit is specifically tailored for the KTM 350 XCF-W and its 8.90mm OD requirements.
While general installation requirements for valve shims exist, no unique or special requirements beyond typical motorcycle maintenance are listed for this product.
Using an exact OD shim ensures proper fitment within the valvetrain components, which is critical for precise valve clearance adjustment and optimal engine performance.