The Radio Helium frame has been out on track now for 5 years, with each year seeing the brand steadily improving this frame. For 2025 the colours and graphics have definitely taken on a clean look, with solid colourways and bold Radio decals on the down tube.
Technically, the frame is manufactured from industry trusted hydroformed 6061 alloy tubing, which produces a super lightweight race frame that is strong enough to take on the big tracks and high speeds they produce. Even the youngest racers need a frame that can take on 5m hill and everything that follows on from it.
The Radio Helium frame has proved over the past 5 races seasons that they can not only produce race wins, they are built to a standard where you can trust it with touches like a forged (read strong) dropout that can integrate Radio's disc mount. Or if you're running V-brakes, then Radio has you covered here as well. You have the choice.
Speaking of the dropout, on the Expert XL Radio have utilised the Sliding Dropout Disc System (SDDS) for 10 & 15mm axles (includes all hardware)
Weight: 1590g
Specifications:
Toptube Length: 20.5” (521mm)
Chain Stay Length (Min): 13.2” (335mm)
Rider Area: 20.7" (526.6mm)
Head Tube Angle: 73.5°
Seat Tube Angle: 71°
BB Height: 10.8" (274mm)
Seat Tube Height: 8.42" (215mm)
Wheel Size: 20" X 1.4"
Head Tube Size: 1-1/8" for integrated headset
Seat Post Size: 22.2mm
Seat Clamp Size: for 25.4mm ID seat clamp
Tubing: Hydroformed 6061 alloy
Bottom Bracket: BSA, 68mm wide
Head Tube: 4.72" (120mm)
Dropouts: Sliding dropout disc system (SDDS) for 10 & 15mm axles (includes all hardware)
Brakes: Flat mount disc brake or v-brake mounts (removable), 77mm pivot-to-pivot,
Weight: 1.59kg
