Radio Darko XL 21" BMX bike key features

• Recommended rider height: approx. 180 cm and above
• Frame size: 21” top tube
• Handlebar: height 9”, width 29.5”
• Gyro / rotor compatible
• Weight: 12.15 kg

Looking for a solid BMX bike for street riding?

The Radio Darko XL 20" is a well balanced BMX designed with street riding in mind. Its geometry and components are built to handle daily sessions, technical tricks and urban obstacles.

The frame features a shorter 13.2” chainstay which makes the bike responsive and easier to lift for manuals, hops and street tricks. Combined with the stable 21” top tube, the bike offers a comfortable setup for taller riders who want good control during technical riding.

The fat combo saddle adds comfort and durability, while the XL grips give your hands more space during longer sessions. The bike can also be set up with a rotor system if you want to run barspins without cable tangling.

The Darko model is available in two frame sizes, 20.5” and 21”, so riders can choose the geometry that fits their height and riding style.

Radio Bikes is a respected BMX brand from Germany with more than 20 years of experience building freestyle bikes. Their models are ridden by BMX riders all over the world and are known for thoughtful design and reliable components.

Radio Darko 21" BMX bike

• Recommended for riders approx. 180 cm and taller
• Excellent value for a full BMX freestyle bike
• Includes a basic tool set for quick setup
• Simple assembly that usually takes about 15 minutes
• Free shipping available

Radio Darko BMX detailed technical specifications

Handlebar

*geometry illustration below, 1" = 2.54 cm

• Height 9”, width 29.5”
• Radio Darko
• Hi-Ten 1020 steel

Fork

• Hi-Ten 1020 legs
• 4130 Cr-Mo steerer tube
• Tapered legs
• Radio AM 20"

Stem

• Aluminium
• Salt Pro
• Top Load

Rims and tyres

• Salt Fraction 20" rims | 36H
• Tyres: SaltPlus Burn | 20" x 2.35"

Headset

• Salt Pro
• Integrated

Crankset

• 3-piece
• Radio AM tubular
• 4130 Cr-Mo
• 170 mm

Sprocket

• 25T
• Radio Vision

Front hub

• Radio AM
• Cr-Mo axle 10 mm (3/8")
• 36H

Rear hub

• Radio AM cassette
• Cr-Mo axle 14 mm
• 36H
• 9T driver
• sealed bearings

Bottom bracket

• MID BB
• sealed bearings
• 19 mm

Brake

• Lever: Radio AM
• Rear brake: Radio AM
• Cables: Radio Slic
• Aluminium

Chain

• Salt AM
• WZ1

Seat

• Radio Century Fat
• Combo
• Seat clamp: Radio Slim forged aluminium

Pedals

• Radio Pro
• Nylon / fiberglass
• 9/16”

Grips

• Radio AM XL
• Flangeless
• 160 mm

Frame

*geometry illustration below, 1" = 2.54 cm

• 4130 Cr-Mo top tube and down tube
• 1020 Hi-Ten steel
• TT: 21"
• CS: 13.2"
• Head angle: 75°
• Seat angle: 71°
• BB height: 11.7"
• Standover: 8.9"
• Brake hardware removable
• Gyro / rotor compatible

Freestyle BMX bikes are exposed to strong forces during tricks and impacts. Even high quality BMX bikes are not indestructible. Regular maintenance and inspection can help extend the life of your bike.

Important information about your new BMX bike

• Before riding, carefully read the warranty information included with the bike.
• Bikes ordered online are typically delivered about 90% assembled for safe shipping.
• Before the first ride you need to install the pedals and handlebar, and in some cases mount the front wheel.
• Manufacturers recommend a professional bike check before first use. This service is usually performed by a bike shop and may be required to maintain the warranty.