Details
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 Junior steps up in size without packing on the pounds. At only 8kg, this is one of the lightest Junior entry-level bikes out there. Fresh out of the box this year 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.
| Top Tube Length | 18.5" |
|---|---|
| Chain Stay Length | 12.85" |
| Head Tube Angle | 73° |
| Seat Tube Angle | 71° |
| Bottom Bracket Height | 10.4" |
Specs
| Frame | 6061-T6 alloy frame, forged dropouts with int. chaintensioner |
|---|---|
| Fork | crmo fork, 1" butted steerer, hi-ten fork legs, 23mm offset |
| Rims | RADIO RACELINE "A-M5" rim, double wall, 28h, alloy |
| Hubs |
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 |
| Tires | ARISUN "XLR8" tires, 20" x 1-1/8" |
| Bottom Bracket | RADIO RACELINE BB set, BSA square taper, sealed |
| Crankset | RADIO RACELINE "COBALT" 3pc crank, forged alloy, 155mm length |
| Chainrings | RADIO RACELINE sprocket, 40T, alloy |
| Chain | KMC "Z6" chain, 1/2" x 3/32" |
| Brakes | PROMAX "MV-87" brake, rear |
| Brake Levers | PROMAX "XL-378" brake lever, rear |
| Handlebars | 4130 crmo bar, seamless |
| Tape/Grips | RADIO RACELINE "COBALT" grips, diamond knurling, closed end, flangeless, 130mm length |
| Stem | RADIO RACELINE "COBALT" toploader stem, ext. 40mm, alloy |
| Headset | RADIO RACELINE integrated headset, sealed, 1" |
| Seatpost | RADIO RACELINE seat post, 22.2mm, alloy |
| Saddle | RADIO RACELINE "MINI" combo seat |
| Pedals | RADIO RACELINE "COBALT JUNIOR" pedal, nylon |
* Subject to change without notice.
Part Numbers
| Option | UPC | MPN |
|---|---|---|
| Metallic Red / 18.5-Inch / 20-Inch | 04055822538824 | 100001818 |
