Cobalt Expert Complete Bike

Built around proven race geometry and a dialled spec package, the Cobalt range is designed to get riders up to speed from day one. The Cobalt Expert raises the bar with a 19.5"" top tube, longer 50mm Cobalt stem, slim Radio combo seat, and wider 1 3/8"" Arisun XLR8 tires, delivering a stable, confidence-inspiring ride when the gate drops.

Updated colours and graphics keep the Cobalt looking fresh for the new season, while sealed front hubs and integrated headsets provide the reliability racers demand. Lightweight, race-ready, and offering exceptional value, the Cobalt Expert is ready for everything from local race nights to national-level competition.

  • FRAME: 6061-T6 alloy frame, forged dropouts with int. chaintensioner
  • FORK: crmo fork, 1-1/8" butted steerer, hi-ten fork legs, 23mm offset
  • HANDLEBAR: 4130 crmo bar, seamless
  • GRIPS: RADIO RACELINE "COBALT" grips, diamond knurling, closed end, flangeless, 130mm length
  • STEM: ARISE "COBALT" toploader stem, ext. 50mm, alloy
  • HEADSET: FSA "No.28" integrated headset, sealed, 1-1/8"
  • BRAKE LEVER: RADIO RACELINE "JUNIOR" brake lever, rear
  • BRAKE: RADIO RACELINE "MINI" V-brake, rear
  • CRANK: RADIO RACELINE "COBALT" 3pc crank, forged alloy, 165mm length
  • BB: RADIO RACELINE BB set, BSA square taper, sealed
  • PEDALS: RADIO RACELINE "COBALT PRO" pedal, alloy
  • CHAIN: KMC "Z6" chain, 1/2" x 3/32"
  • SPROCKET: RADIO RACELINE sprocket, 42T, alloy
  • DRIVER: ATA freewheel, 16T, 1/2" x 3/32", crmo
  • FRONT HUB: RADIO RACELINE "COBALT" front hub, alloy cnc, fully sealed, 28h, 3/8" crmo axle
  • REAR HUB: RADIO RACELINE "COBALT" front hub, alloy cnc, fully sealed, 28h, 3/8" crmo axle
  • FRONT RIM: RADIO RACELINE "A-M5" rim, double wall, 28h, alloy
  • REAR RIM: RADIO RACELINE "A-M5" rim, double wall, 28h, alloy
  • SEAT: RADIO RACELINE "COBALT PRO" combo seat
  • SEAT POST: RADIO RACELINE seat post, 25.4mm, alloy
  • SEAT CLAMP: RADIO RACELINE seat clamp, forged alloy
  • TIRES: ARISUN "XLR8" tires, 20" x 1-3/8"

Weight: 8.82kg / 19.44lbs

 

Frame Geometry:

Top Tube Length 19.5"
Chain Stay Length 13.6"
Head Tube Angle 73°
Seat Tube Angle 71°
Bottom Bracket Height  10.8"

 

Handlebar Geometry:

Rise 5.75"
Width 24.5"
Backsweep
Upsweep

 

Color