RADIO Raceline Cobalt Pro XL 20 Complete Bike

The Cobalt Pro Complete Bike is a high-performance entry-level race BMX built for speed, control, and durability. Featuring proven race geometry, sealed hubs, and premium RADIO RACELINE components, this bike delivers smooth handling and reliable performance straight out of the box.

Highlights

• Lightweight 6061-T6 alloy frame with integrated chain tensioner
• Fully sealed front and rear hubs for smooth rolling performance
• Double wall alloy rims for added strength and durability
• RADIO RACELINE 3-piece forged alloy crankset
• Race-ready geometry with responsive 30mm fork offset
• Fresh modern paint and graphics for standout track style

Frame & Fork

• Frame: 6061-T6 alloy frame with forged dropouts
• Fork: CrMo fork with 1-1/8" butted steerer and 30mm offset
• Headset: FSA No.28 integrated sealed headset

Cockpit & Controls

• Handlebar: 4130 CrMo seamless handlebar
• Bar Geometry: 7.5" rise / 28" width / 11° backsweep / 3.5° upsweep
• Stem: RADIO RACELINE COBALT alloy toploader stem, 50mm reach
• Grips: RADIO RACELINE COBALT grips, flangeless, 130mm

Drivetrain

• Crank: RADIO RACELINE COBALT forged alloy crank, 175mm
• Bottom Bracket: Sealed BSA square taper BB
• Sprocket: RADIO RACELINE 44T alloy sprocket
• Driver: ATA 16T freewheel with CrMo construction
• Chain: KMC Z6 chain

Wheelset & Tires

• Front Hub: Fully sealed alloy CNC hub, 36h
• Rear Hub: Fully sealed flip-flop alloy CNC hub, 36h
• Rims: RADIO RACELINE BX-32 double wall alloy rims
• Tires: ARISUN XLR8 tires
• Tire Size Front: 20" x 1.95"
• Tire Size Rear: 20" x 1.75"

Seat & Components

• Seat: RADIO RACELINE COBALT PRO combo seat
• Seat Post: 25.4mm alloy seat post
• Seat Clamp: Forged alloy seat clamp
• Pedals: RADIO RACELINE COBALT PRO alloy pedals

Frame Geometry

• Top Tube Length: 20.75" / 21.25"
• Chain Stay Length: 14"
• Head Tube Angle: 73°
• Seat Tube Angle: 72°
• Bottom Bracket Height: 11.5"

Weight

• Approx. Weight: 9.95 kg / 21.93 lbs