Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Radio
2021 Radio Cobalt Pro
Previous used estimate
$201 - $207
Actual value depends on condition, size, and local demand.
Value Guide market data · 2021 Radio Cobalt Pro
12-month projected trend
9%
Direction and magnitude, not judgment
vs. category average
4%
Drops faster than category avg
Price over time - 2021 Radio Cobalt Pro
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
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Compare Cobalt Pro models
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Overview
About this bike
The Cobalt line combines proven geometry and dialed components, giving you the best start out of the gate during your first days racing. The Cobalt line took off so much that we decided to add a Pro size to the lineup, 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 fully sealed front hubs and integrated headsets, making them simply unbeatable when comparing price to spec. The Cobalt is one seriously unstoppable machine.
Specifications
- Subtype
- BMX
- Category
- BMX
- Component Fork
- Cr-mo, 1-1/8" butted steerer tube, cr-mo fork legs, 30mm offset
- Component Hubs
- Front: Radio, Cobalt, alloy cnc, fully sealed, 32T, 3/8" cr-mo axle Rear: Radio, Cobalt, alloy cnc, fully sealed, 32T, flip flop, 3/8" cr-mo axle
- Component Rims
- Radio, BX-32, double wall, 32H, alloy f&r
- Component Size
- 20.75-inch
- Component Stem
- Radio, Cobalt toploader, ext. 50mm, alloy
- Product Family
- Cobalt
- Component Chain
- KMC, Z6, 1/2" x 3/32"
- Component Color
- Black
- Component Frame
- 6061 T6 alloy, forged dropouts with int. chain tensioner
- Component Brakes
- PROMAX TX-117 alloy brake rear
- Component Pedals
- Radio, Cobalt Pro, alloy
- Component Saddle
- Radio Cobalt Pro, combo seat
- Component Headset
- FSA, No.28, integrated headset, sealed, 1-1/8"
- Component Crankset
- RADIO Cobalt forged alloy 3pc crank, 175mm long
- Component Seatpost
- Radio 25.4mm alloy
- Component Handlebar
- 4130 seamless cr-mo
- Component Rear Tire
- Arisun, XLR8, front 20x1.95" / rear 20x1.75"
- Component Chainrings
- RADIO alloy, 44t sprocket
- Component Front Tire
- Arisun, XLR8, front 20x1.95" / rear 20x1.75"
- Component Tape Grips
- Radio, diamond knurling, closed end, flangeless, 130mm length
- Component Brake Levers
- PROMAX XL-378 alloy
- Component Bottom Bracket
- Radio, BSA square taper, sealed
- Component Cassette Freewheel
- ATA, 16T, 1/2" x 3/32", cr-mo
- Hubs
- Front: Radio, Cobalt, alloy cnc, fully sealed, 32T, 3/8" cr-mo axle Rear: Radio, Cobalt, alloy cnc, fully sealed, 32T, flip flop, 3/8" cr-mo axle
- Rims
- Radio, BX-32, double wall, 32H, alloy f&r
- Crankset
- RADIO Cobalt forged alloy 3pc crank, 175mm long
- Pedals
- Radio, Cobalt Pro, alloy
- Bottom Bracket
- Radio, BSA square taper, sealed
- Chain
- KMC, Z6, 1/2" x 3/32"
- Seatpost
- Radio 25.4mm alloy
- Saddle
- Radio Cobalt Pro, combo seat
- Handlebar
- 4130 seamless cr-mo
- Headset
- FSA, No.28, integrated headset, sealed, 1-1/8"
- Rear Tire
- Arisun, XLR8, front 20x1.95" / rear 20x1.75"
- Stem
- Radio, Cobalt toploader, ext. 50mm, alloy
- Brake Levers
- PROMAX XL-378 alloy
- Brakes
- PROMAX TX-117 alloy brake rear
- Chainrings
- RADIO alloy, 44t sprocket
- Fork
- Cr-mo, 1-1/8" butted steerer tube, cr-mo fork legs, 30mm offset
- Frame
- 6061 T6 alloy, forged dropouts with int. chain tensioner
- Tape/Grips
- Radio, diamond knurling, closed end, flangeless, 130mm length
- Color
- Black
- Size
- 20.75-inch
- Cassette/Freewheel
- ATA, 16T, 1/2" x 3/32", cr-mo
- Front Tire
- Arisun, XLR8, front 20x1.95" / rear 20x1.75"
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.