DK Swift S2 Pro 20-inch BMX race bike — a complete race setup for track and pumptrack practice:

Key features

• Suggested rider height: Approx. 160–180 cm
• Top tube length (TT): 20.5 in
• Frame: 6061 aluminium, BMX race geometry
• Tyres: 20 x 1.75 in
• Fork: 100% 4130 chromoly
• Bar: 4130 chromoly, 8 in rise
• Cranks: Aluminium, 175 mm
• Weight: Approx. 9.05 kg
• Riding style: BMX racing and pumptrack

For laps, starts and pumptrack practice

The Swift S2 Pro is a BMX race bike for track training and pumptrack sessions. It gives you a complete build, so you can choose a size and have the bike assembled and checked without selecting every component separately. Practise starts, cornering and pumping on features suited to your ability.

Look beyond the wheel size

The 20.5-inch top tube and 8-inch-rise bar help you compare the riding position with a bike you already know. The suggested rider height is around 160–180 cm. Use that range as a starting point, then check reach, frame clearance and whether you can operate the brake comfortably.

The aluminium cranks are 175 mm long. The listed weight is approximately 9.05 kg, which is also useful to consider when carrying the bike between sessions.

Race-focused components

A 6061 aluminium frame is paired with a 4130 chromoly fork and bar. The wheels have double-wall rims, and a V-brake handles braking. Have the brake adjusted before riding and check it before every session.

The tyres measure 20 x 1.75 inches. A BSA external bottom bracket takes a 24 mm spindle, while DK Tsuka grips and platform pedals complete the listed contact points.

Before the next lap

Inspect the frame, fork, wheels, cranks, pedals, brake and fixings before riding. Track use, jumps and landings put loads through the bike; stop if you find play or damage and have it checked before you ride again.

DK Swift S2 Pro 20-inch BMX race bike — specifications:

Sizing, weight and other details:

• Suggested rider height: Approx. 160–180 cm
• Weight: Approx. 9.05 kg
• Riding style: BMX racing and pumptrack

Frame geometry:

• Top tube length (TT): 20.5 in

Frame:

• Frame: 6061 aluminium, BMX race geometry

Tyres:

• Tyres: 20 x 1.75 in

Fork:

• Fork: 100% 4130 chromoly

Handlebars:

• Bar: 4130 chromoly, 8 in rise

Cranks:

• Cranks: Aluminium, 175 mm

Stem:

• Stem: Aluminium, top load

Wheels and rims:

• Rims: Double-wall

Bottom bracket:

• Bottom bracket: BSA external, 24 mm spindle

Chain:

• Chain: KMC Z-610

Brakes and controls:

• Brake: V-brake

Grips and bar ends:

• Grips: DK Tsuka

Pedals:

• Pedals: Platforms

Safety while riding

BMX racing and pumptrack riding put high loads through the bike during track riding, jumps and landings. No bike is indestructible: parts can wear out or become damaged. Check the frame, fork, bars, wheels, axles, cranks, pedals, brakes and bolted connections before every ride. Inspect the bike after a hard impact and stop riding if you find looseness, cracks or damage. Have any problem checked and repaired before riding again.

Wear a properly fitted helmet and suitable protective pads. Read our important information before buying and riding a BMX bike for assembly, servicing and riding checks.

Important information about your new bike

• Read the instructions and warranty supplied with the bike before riding.
• The bike is delivered approximately 90% assembled for shipping.
• Before the first ride, fit the pedals, saddle and handlebars, and the front wheel where required. Follow the assembly instructions and check all components.
• Have a professional bike workshop carry out a pre-ride inspection. This is a paid service; keep the receipt as proof for the manufacturer’s warranty and follow the warranty terms supplied with your bike.

The manufacturer’s warranty is separate from your statutory consumer rights. Continue to inspect and service the bike throughout its use.

Frame geometry diagram