Excess Pro Alloy Body For P3x5 R120 Hub

Product Overview The Excess Pro Alloy Body is a replacement cassette body engineered for Excess XLS-2, XLS-3 wheels and Excess Pro 36H P3x5 R120 rear hubs. The aluminum construction with 3-pawl, 5-fin engagement system locking into a 120-ratchet ring delivers crisp power transfer and reliable engagement. The complete unit includes bearings, pawls, and springs—ready for cog installation. Compatible with Shimano-standard cassette cogs.

Key Features

• Aluminum Construction – Lightweight alloy reduces overall hub weight while providing adequate durability for racing and training; resists corrosion
• 3-Pawl with 5-Fin Engagement System – Each pawl features 5 fins engaging the 120-ratchet outer ring, multiplying contact points and reducing slippage during acceleration; delivers crisp, immediate power transfer
• 120-Ratchet Cutter Ring – High ratchet count provides immediate engagement with minimal freewheeling lag; essential for competitive racing where split-second power application matters
• Complete Assembly – Includes integrated bearings, pawls, and springs; ready for immediate cog installation without additional component purchases
• Shimano-Standard Cassette Compatible – Works with any Shimano-style rear cog (Excess, Elevn, Shimano, etc.); enables cog swapping and upgrades
• Precision Manufacturing – Engineered to exact Excess specifications for seamless hub body replacement
• Sealed Bearing System – Integrated sealed bearings eliminate water and dirt ingress; reduce maintenance and extend freehub life

Technical Specifications

• Material: Aluminum
• Hub Size: Pro (standard)
• Freehub Type: Cassette body (Shimano-standard threaded)
• Engagement System: 3 pawls with 5-fin engagement on 120-ratchet outer ring
• Included Components: Bearings, pawls, springs
• Cog Compatibility: Shimano-standard cassette (all brands)
• Hub Compatibility: Excess XLS-2, XLS-3 wheels (406 and 507 ETRTO); Excess Pro 36H P3x5 R120 rear hubs
• Quantity: Sold as one complete unit

Additional Components Needed

• Spacers: Sold separately (0.5mm and 1mm options available)
• Lock Ring/Cassette Clamp: Sold separately (Shimano-standard compatible)
• Rear Cog: Sold separately (16T, 17T, 18T, etc.)

Compatibility and Ideal Use Cases

• Fits: Excess XLS-2 and XLS-3 wheel hubs (406 and 507 ETRTO sizes); Excess Pro 36H P3x5 R120 rear hubs only
• Best For: Cassette body replacement due to wear, damaged pawls, or loss of engagement; freehub upgrade or refresh on P3x5 R120 systems
• Ideal Riders: Competitive 20" racers; riders prioritizing gate-start responsiveness and immediate engagement
• Installation Requirement: Intermediate mechanical knowledge; hub disassembly and reassembly needed; spacer and lock ring selection required
• Not Recommended For: Excess Pro Alloy ISO or other non-P3x5 R120 hubs; incompatible hub standards; wheels other than XLS-2 or XLS-3

Installation Notes Remove rear wheel and disassemble hub body from axle. Install new cassette body onto hub axle, aligning splines. Select appropriate spacers (0.5mm and/or 1mm) based on cog thickness. Install selected cog onto cassette body threads. Thread lock ring hand-tight until cog seats firmly. Tighten progressively in alternating directions (left-right) to ensure even clamping pressure. Verify cog rotation is smooth and free and engagement occurs immediately without delay.

Maintenance Notes The 3-pawl, 5-fin engagement system provides reliable, immediate power transfer across extended racing and training. Periodically inspect pawl fins for wear; if engagement becomes sluggish or delayed, individual pawl and spring components can be replaced without full cassette body replacement. Sealed bearings require no regular greasing.

Performance Note 5-fin multi-point engagement design delivers maximum contact surface and minimal slippage, essential for competitive gate-start racing. The 120-ratchet ring ensures zero freewheeling lag—critical for riders requiring immediate power response during starts and acceleration.

Compatibility Reminder Compatible with Excess XLS-2 and XLS-3 wheels (406/507) and Excess Pro 36H P3x5 R120 rear hubs only. Verify your hub specification matches P3x5 R120 before purchase—incompatible with ISO, Alloy ISO, or other Excess rear hub variants.