Ikon Alloy 20" Rim 451x19.5 28h No Brake Surface

The IKON UltraLite 451x19.5 28H is a double-walled 6061-T6 alloy 20" BMX race rim with a brakeless, disc-specific profile. At 266g it is built for weight-focused race builds, with angled spoke holes for a rigid wheel and tubeless compatibility. Runs front or rear; offered in black with white, blue or red graphics.

Features

• Optimized internal geometry for minimal weight with strength
• Brakeless aero profile, front or rear
• Angled spoke holes for a more direct spoke angle and a stiffer build
• Tubeless ready bead lock system
• Double-polished, black anodized finish with water transfer graphics

Specs

• Material: 6061-T6 aluminum, double-walled
• Size: 451x19.5mm (20"x1-1/8"/1-3/8")
• Holes: 28
• ERD: 434mm
• Height: 16.3mm
• Internal width: 13.5mm
• External width: 19.5mm
• Weight: 266g (9.34 oz; also listed as 9.4 oz)
• Valve: Presta F/V
• Max spoke tension: ≤115 KGF
• Max tire pressure: 110 PSI (7.58 bar)
• Brake surface: None (disc or brakeless)
• Graphics: 4 color options across the range (White / Blue / Red / Neon Yellow)

Fitment

Fits 20" (451) BMX tires and 28-hole hubs, front or rear. Not for rim brakes or V-brakes. Angled spoke holes suit cross lacing; radial lacing is not recommended.

Tubeless Ready System: the bead lock system makes the rim tubeless ready with a tubeless-specific tire. Converting needs a special valve, sealant rim tape and liquid sealer (sold separately).

Disc Braking Compatible: designed to be used as a front rim or a rear rim with a disc brake.