Designed in conjunction with a BMX race knowledge spanning 3 decades, Radio Raceline Helium frames are powerful pure bred race machines. You’ll find no gimmicks, no “goofy” tubing shapes or unnecessary features. These frames are built from the ground up with race-proven geometry and technology combined with clean, functional aesthetics to give you the holeshot out of the gate. Radio Raceline Helium frames are designed to feel comfortable, stiff, and fast, exactly how a race bike should.

GEOMETRY & SPECS

• Material: Hydroformed 6061 alloy
• Top Tube Length: 19.5″ (EXPERT) 20.5″ (EXPERT XL)
• Chain Stay Length: 13″ (EXPERT) 13.2″ (EXPERT XL)
• Dropout Size: 10mm
• Head Tube Angle: 73.5
• Seat Tube Angle: 71
• Head Tube Size: 1 1/8
• Seat Post Size: 22.2mm
• Seat Tube Length: 215mm
• Bottom Bracket Height: EU, 10.8
• Wheel Size: 20 X 1-3/8″ (EXPERT) 20 X 1.4″ (EXPERT XL)
• Extra: Forged and CNC machined dropouts with integrated chain Tensioners
• Disc brake compatible
• Weight:3.21 lbs (EXPERT) 3.33 lbs (EXPERT XL)