Excess XLS Alloy Rim 451x19.5mm 28h No Brake Surface

Excess XLS Alloy Rim 451x19.5mm 28H – No Brake Surface

Product Overview

The Excess XLS is a lightweight double-walled 6061-T6 alloy rim designed for 20" BMX wheels with brakeless surface profile. At 264g with optimized internal geometry, it features angled nipple holes for rigid wheel builds and is compatible with disc brake systems.

Key Features

• Double-Walled 6061-T6 Aluminum – Optimized internal geometry reduces weight while maintaining strength for all BMX applications
• Brakeless Aero Profile – Lightweight, aerodynamic design without machined brake surface; optimized for speed
• Angled Nipple Holes – Slightly angled spoke hole openings create more direct spoke-to-nipple angle for stronger, more rigid wheel builds
• Polished Black Anodized Finish – Single-process anodizing creates durable protective coating with polished aesthetic
• 19.5mm Width – Compact rim width optimized for minimal weight while maintaining tire support
• Presta Valve Compatible – Drilled for Presta valve stems; standard for modern BMX wheels
• Disc Brake Compatible – Designed for front or rear wheel use with hydraulic or mechanical disc brake systems
• Ultra-Lightweight – 264g weight ideal for weight-optimized racing builds
• 28-Spoke Drilling – Standard BMX spoke count for balanced strength and weight
• Front or Rear Compatible – Versatile brakeless design suitable for both wheel positions

Technical Specifications

• Material: 6061-T6 aluminum, double-walled
• Size: 20" x 1-1/8"/1-3/8" (451x19.5mm)
• Drilling: 28 holes
• ERD (Effective Rim Diameter): 438mm
• Height: 16mm
• Internal rim width: 13.5mm (front)
• External rim width: 19.5mm
• Weight: 264g
• Brake surface: None (brakeless profile)
• Valve: Presta F/V compatible
• Finish: Polished black anodized
• Maximum spoke tension: ≤115 kgf
• Disc brake compatible: Yes (front or rear)

Build Requirements & Compatibility

• Spoke Compatibility – Use with butted or bladed steel spokes; verify spoke length based on hub flange geometry (approximately 220–240mm range depending on hub)
• Spoke Tensioning – Use calibrated spoke tension meter; maximum 115 kgf spoke tension
• Lacing Patterns – Angled nipple holes support standard cross lacing; radial lacing not recommended
• Tire Compatibility – Designed for 20" BMX tires; verify tire bead diameter matches 451 ETRTO standard
• Valve Type – Presta valve compatible; verify tire valve type before assembly
• Hub Compatibility – Works with any 28-hole hub (front or rear); verify ERD and spoke hole count
• Brake Compatibility – Brakeless surface designed for disc brake systems; use as front or rear wheel with disc brakes

Compatibility & Ideal Use Cases

• BMX racing and freestyle – Optimized for all 20" BMX riding disciplines
• Disc brake systems – Compatible with hydraulic and mechanical disc brakes on front or rear
• Weight-optimized builds – 264g weight ideal for competitive racing setups
• Brakeless setups – Lightweight design optimized for speed-focused racing
• Modern BMX geometry – 19.5mm width compatible with contemporary tire and frame standards
• Compact wheel builds – 28-hole drilling and minimal width ideal for light, responsive wheels
• All rider types – Suitable for racers and freestyle riders at any skill level

Important Notes

• Brakeless surface; not compatible with rim brakes or V-brakes
• Compatible with disc brake systems when used as front or rear wheel
• Maximum spoke tension 115 kgf; exceeding this may damage rim or spokes
• Angled nipple holes require proper spoke length calculation for correct build geometry
• Presta valve hole drilled; verify tire valve type before assembly
• Ultra-lightweight construction optimized for racing; not designed for heavy abuse
• Polished finish may require periodic cleaning to maintain appearance
• ERD 438mm for accurate spoke length calculation during wheel building

EXCESS XLS 451x19.5MM RIM SPECIFICATIONS
ERD: 438mm
Height: 16mm
Internal Rim Width: 13.5mm (front)
External Rim Width: 19.5mm
Spoke tension recommended <115kgf

Disc Braking Compatible - Designed to be used as a front rim or a rear rim when using a disc brake.