Description
Excess Pro Alloy Front 20mm Axle Conversion Sleeve
Product Overview The Excess Pro Alloy Front 20mm Axle Conversion Sleeve enables conversion of Excess XLS Pro 10mm (3/8") front hubs to modern 20mm thru-axle compatibility. The aluminum sleeve replaces the standard 10mm axle assembly, transforming the hub for use with 20mm thru-axle forks. The conversion maintains hub performance while enabling compatibility with contemporary fork designs. Requires separate purchase of 20mm thru axle.
Key Features
- Aluminum Construction – Lightweight alloy maintains minimal weight addition while providing durable conversion interface
- 20mm Thru-Axle Standard – Converts hub to modern 20mm thru-axle standard; enables compatibility with Box Hex Lab, Ikon Pro, and other 20mm forks
- Drop-In Conversion – Simple replacement of standard 10mm axle assembly; no hub body modification required
- XLS Pro Hub Compatible – Direct compatibility with Excess XLS Pro front hubs; works across 406 and 507 wheel sizes
- XLC Pro Wheel Compatible – Enables use on XLC Pro wheels (406 and 507 ETRTO) with 20mm thru-axle forks
- Maintains Hub Performance – Conversion preserves original hub bearing function and smooth operation
- Axle Not Included – Conversion sleeve only; 20mm thru axle purchased separately based on fork specifications
Technical Specifications
- Material: Aluminum
- Conversion Type: 10mm (3/8") to 20mm thru-axle
- Hub Compatibility: Excess XLS Pro front hubs
- Wheel Compatibility: Excess XLC Pro wheels (406 and 507 ETRTO)
- Fork Compatibility: 20mm thru-axle forks (Box, Ikon, etc.)
- 20mm Axle Length: Typically 110mm for chromoly forks; 114mm for carbon forks (verify with fork manufacturer)
- Manufacturing: Precision-engineered to Excess specifications
Axle Selection Guide
- 110mm Axle – Standard for chromoly 20mm fork dropouts; compatible with most steel fork designs
- 114mm Axle – Standard for carbon 20mm fork dropouts; verify fork manufacturer specifications before purchase
- Consult Fork Manufacturer – Correct axle length varies by fork model; confirm length with your specific fork before ordering axle
Compatibility and Ideal Use Cases
- Fits: Excess XLS Pro front hubs; Excess XLC Pro wheels (406 and 507 ETRTO)
- Best For: Upgrading older 10mm front hubs to modern 20mm thru-axle fork compatibility; enabling use of contemporary fork technology
- Ideal Riders: Riders upgrading to modern 20mm thru-axle forks; those seeking compatibility with latest fork designs
- Installation Requirement: Basic mechanical knowledge; hub disassembly and reassembly needed; requires separate 20mm thru axle
- Not Recommended For: Non-XLS Pro hubs; 10mm axle forks; hubs incompatible with conversion sleeve design
Installation Notes Remove front wheel and disassemble existing 10mm axle assembly from hub. Install conversion sleeve onto hub body, aligning with original bearing surfaces. Install selected 20mm thru axle through conversion sleeve. Tighten 20mm axle locknut hand-tight, then back off slightly for free rotation. Verify smooth wheel spin without binding. Install wheel into 20mm thru-axle fork dropouts and tighten thru-axle to fork specifications.
Critical Axle Selection Correct 20mm axle length is essential for proper fork fitment and wheel retention. Chromoly forks typically require 110mm axles; carbon forks typically require 114mm axles. Consult your fork manufacturer's specifications before purchasing axle to ensure compatibility. Incorrect axle length can result in improper wheel retention or fork binding.
Performance Note Conversion sleeve maintains original hub bearing smoothness and reliability while enabling compatibility with modern 20mm thru-axle fork technology. Proper axle selection and installation ensures secure wheel retention and responsive front-end handling.
Compatibility Reminder Conversion sleeve compatible with Excess XLS Pro and XLC Pro front hubs (406 and 507) only. Verify your hub model before purchase. Requires separate 20mm thru axle—consult fork manufacturer for correct axle length (typically 110mm or 114mm).


