The Helium Pro XXL Frame is a high-performance BMX race frame engineered for maximum speed, stiffness, and lightweight handling. Built from hydroformed 6061 alloy tubing with forged CNC-machined dropouts, this premium frame delivers exceptional race performance and modern disc-brake compatibility for serious BMX riders.

Features

• Super lightweight BMX race frame construction
• Hydroformed 6061 alloy tubing for high strength and low weight
• Forged & CNC-machined dropouts for durability
• 20mm thru-axle dropouts with adaptors for 15mm and 10mm (3/8”) axles
• Integrated chain tensioner bolts
• Compatible with disc brakes using the Radio Helium PRO Disc Brake Mount
• Removable v-brake mounts included
• Designed for 20” x 1.75” race tires

Specifications

• Color: Black / Metallic Caribic Blue / Galactic Ice Purple
• Toptube Length: 21.75” (552mm)
• Chain Stay Length: 14.8” (376mm)
• Rider Area: 21.7” (551.9mm)
• Head Tube Angle: 74°
• Seat Tube Angle: 71°
• BB Height: 11.6” (294.64mm)
• Seat Tube Height: 9.1” (231mm)
• Wheel Size: 20” (406mm) x 1.75”
• Head Tube Size: Tapered 1-1/8” – 1.5” integrated headset
• Seat Post Size: 27.2mm
• Seat Clamp Size: 31.8mm ID
• Bottom Bracket: BSA, 68mm wide
• Head Tube Length: 4.9” (125mm)
• Dropouts: 20mm slots with 15mm & 10mm adaptors
• Brake Compatibility: Removable v-brake mounts, disc brake ready
• Weight: 1.84kg (4.05lbs)