Radio Cobalt Expert Race BMX Bike 2020

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  • Tested on the track and designed in conjunction with a team with BMX race knowledge spanning 3 decades, Radio enter the market with a well thought out and powerful line of pure bred race machines. Radio's entry level Cobalt packs an enormous amount of technology and features into what essentially will be a rider’s first race bike. Even from day one, Radio believes in giving the rider a bike which will allow them every chance to rapidly climb the ranks and on to the podium.

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Product Specs
  1. FRAME MATERIAL: 6061-T6 alloy
  2. WHEEL SIZE: 20"
  3. TOP TUBE LENGTH: 19.5"
  4. CHAIN STAY LENGTH: 13.6"
  5. HEADTUBE ANGLE: 73°
  6. SEAT TUBE ANGLE: 71°
  7. FORKS: crmo, 1 1/8″ butted steerer, hi-ten fork legs
  8. BARS: 6061-T6 alloy
  9. STEM: RADIO “Cobalt” top loading stem, 50mm reach
  10. HEADSET: FSA “NO. 28″ 1 1/8”
  11. BRAKE MOUNTS: Welded
  12. BRAKES: PROMAX “MV-87” alloy brake rear
  13. FRONT HUB: RADIO “Cobalt” alloy hub, fully sealed, 3/8″s, 28h, crmo axle
  14. FRONT RIM: RADIO “R450” rim, double wall, 28h
  15. REAR HUB: RADIO “Cobalt” alloy hub, fulkly sealed, 3/8″s, 28h, crmo axle, flip flop
  16. REAR RIM: RADIO “R450” rim, double wall, 28h
  17. TYRES: TIOGA “Power Block” tires, 20″ x 1 3/8″” front & rear
  18. SPROCKET: RADIO alloy, 39t sprocket
  19. CRANKS: RADIO “Cobalt” forged alloy 3pc crank, 165mm long
  20. BB: RADIO, BSA square taper, sealed
  21. PEDALS: RADIO “Expert” PC, crmo axle
  22. SEAT: RADIO Pivotal seat, no padding
  23. GEARING: 39/15
  24. WEIGHT: 7.72g / 17.02lbs

Product Highlights
  • Full Size Bike with a Shorter Top Tube and geometry to Suit riders who are 4ft - 5ft 4" / 120cm -160cm
  • BMX Racing specific bike
  • Lightweight Aluminum Frame
  • Strong Responsive Promax V-Brake
  • Low Resistance Tioga Powerblock Tires

RACE BIKE SIZING

The first thing you will need to do is make sure you get the correct sized BMX race bike based on your height.

BMX race bikes are sized from Mini (The smallest) through to Pro (adult) sizes. These sizes refer to the overall size of the frames and parts but the wheel diameter will remain the same at 20” despite the width of the tyres varying.

Cycle through our handy guide to find out what size bike best suits you.

Note: there is some overlap between sizes as personal preference comes into the equation.

Imperial (feet & inches)

Metric (cm)

NEED MORE HELP UNDERSTANDING BMX RACE BIKES?

WE HAVE COMPILED A COMPLETE BMX RACE BIKE BUYERS GUIDE TO HELP YOU THROUGH THE PROCESS