Radio Raceline Cobalt Pro 20"

The Cobalt line combines proven geometry and dialled components giving you the best start out of the gate during your first days racing. The Cobalt line took off so much that Radio decided to add a pro size to the line-up allowing more riders to enjoy one of the best entry level race bikes on the market!

Fresh out of the box with incredible new paint and graphics, you’ll be able to spot a Cobalt on the track very easily. All Cobalt bikes now feature full sealed front hubs and integrated headsets, making them simply unbeatable when comparing price to spec. The Cobalt is one seriously unstoppable machine.

• Frame - 6061 T6 alloy, forged dropouts with int. chain tensioner
• Fork - Cr-Mo, 1-1/8″ butted steerer tube, Cr-Mo fork legs, 30mm offset
• Handlebar - 4130 seamless Cr-Mo
• Grips - Radio, diamond knurling, closed end, flangeless, 130mm length
• Stem - Radio, 'Cobalt' toploader, ext. 50mm, alloy
• Headset - FSA, no.28, integrated headset, sealed, 1-1/8″
• Brake lever - Promax 'XL-378' alloy brake rear
• Brake - Promax 'TX-117' alloy brake rear
• Crank - Radio 'Cobalt' forged alloy 3pc crank, 175mm long
• BB - Radio, BSA square taper, sealed
• Pedals - Radio, 'Cobalt Pro', alloy
• Chain - KMC, 'Z6', 1/2″ x 3/32″
• Sprocket - Radio alloy, 44T sprocket
• Driver - ATA, '16T', 1/2″ x 3/32″, Cr-Mo
• Front hub - Radio, 'Cobalt', alloy CNC, fully sealed, 32T, 3/8″ Cr-Mo axle
• Rear hub - Radio, 'Cobalt', alloy CNC, fully sealed, 32T, flip flop, 3/8″ Cr-Mo axle
• Rims - Radio, 'BX-32', double wall, 32H, alloy F & R
• Seat - Radio 'Cobalt Pro', combo seat
• Seat post - Radio 25.4mm alloy
• Seat clamp - Radio, seat clamp, forged, alloy
• Tires - Arisun, 'XLR8', front 20″x1.95″ / rear 20″x1.75″
• Weight - 9.95kg/ 21.93lbs

Frame geometry

• Top tube length - 20.75″
• Chain stay length - 14″
• Head tube angle - 73°
• Seat tube angle - 72°
• Bottom bracket height - 11.5″

Handlebar geometry

• Rise - 7.5″
• Width - 28″
• Backsweep - 11°
• Upsweep - 3.5°