Ikon Alloy 20" Rim OS20 451x28 36h With Brake Surface

Overview

The Ikon UltraLite OS20 rim is specifically engineered for BMX racing competition, built on the larger 451mm ISO/ETRO diameter standard (OS20). At 28mm width and approximately 360g (12.7 oz), this double-walled 6061 T6 aluminum rim delivers the strength and size of a traditional 1.75" rim. This model features a CNC-machined brake track for V-brake compatibility, making it ideal for rear wheel use. The black anodized finish with double-polished base and water-transfer graphics is available in four colors including Neon Yellow.

Key Features

• UltraLite double-walled construction — 6061 T6 alloy with optimized geometry for light weight and improved resistance

• Machined brake track — CNC-machined braking surface sidewalls designed specifically for improved V-brake pad stopping power

• Angled spoke nipple openings — Slightly inclined holes create a more direct spoke angle for a stiffer, more rigid wheel build

• Double-polished + black anodized finish — High-luster appearance with durable anodized protection

• Water-transfer graphics — Available in four colors (White, Neon Yellow, Red, Blue)

• OS20 451mm diameter — Larger 20" rim standard for specific BMX race frames and setups

• Tubeless Ready with Bead Lock System — Can be converted to tubeless with additional components (valve, rim tape, liquid sealant) to reduce rotational weight and add puncture self-repair

• V-brake compatible — Designed specifically for rear wheel use with V-brake systems

Technical Specifications

• Material: 6061 T6 aluminum alloy

• Size: 451x28mm (20" x 1.50"/1.75" OS20)

• ERD: 428.6mm

• Drilling: 36 holes

• External width: 28mm

• Internal width: 21.9mm

• Height: 18.9mm

• Weight: 360g / 12.7 oz (328g / 11.56oz noted in feature list; variance likely between raw and finished weight)

• Valve: Presta F/V (Schrader valve hole noted in description)

• Maximum recommended pressure: 110 psi / 7.58 bar

• Spoke tension recommended: ≤115 KGF

• Brake surface: CNC-machined for V-brake compatibility

• Tubeless: Ready with Bead Lock System (requires conversion kit)

Compatibility & Ideal Use Cases

• Frame/fork compatibility: OS20 BMX frames and forks designed for 451mm ISO/ETRO rims (larger than standard 406mm)

• Brake compatibility: V-brake systems only (rear wheel specific)

• Spoke compatibility: 36-hole hubs only

• Tire compatibility: 20" x 1.50" to 1.75" OS20 tires; tubeless-ready tires required for tubeless conversion

• Wheel position: Designed specifically for rear wheel use with V-brake

• Best for: BMX racers on OS20 platform (451mm) running rear V-brakes; riders needing 36-hole rear wheel builds

• Ideal use: Competitive BMX racing on OS20 frame standards; rear wheels where rim braking is required

• Not suitable for: Standard 406mm BMX frames (check frame compatibility); disc brake-only setups; front wheel use with rim brakes

V-BRAKE COMPATIBLE. WITH BRAKE SURFACE.

Maximum recommended pressure: 110Psi / 7.58 bar

Recommended spoke tension: ≤115KGF

Tubeless Ready System - Our rims feature a Bead Lock System, needed for the rim to be Tubeless Ready. With the installation of additional items needed you can get the rim ready for tubeless set up, along with the usage of a tubeless specific tire. With a tubeless set up, you can lighten up your wheels, saveing rotational weight, as well as have a sealant inside your tubeless ready tire to help automatically repair small punctures.
Additional items needed to convert to a Tubeless system include Special Valve, Sealant Rim Tape, and Liquid sealer.

V-Braking Compatible - Designed to be used as a rear rim when using a V-brake.