Mafiabikes Kush2+ Justice 20-inch BMX bike, 20.4-inch TT — a complete freestyle setup for getting started:

Key features

• Suggested rider height: Approx. 145 cm and taller
• Top tube length (TT / A): 20.4 in
• Wheel size: 20 x 2.5 in
• Bar: Height (G): 9 in; width (H): 29.5 in
• Cranks: Three-piece 4130 chromoly
• Weight: 11.79 kg

The Mafiabikes Kush2+ Justice puts a three-piece 4130 chromoly crankset, sealed Mid bottom bracket and double-wall rims into a complete freestyle setup. You get the core components together, with a rear U-brake for controlling speed as you learn and practise.

Check the reach before choosing

The wheels are 20 inches, while the frame has a 20.4-inch top tube, marked TT. The suggested rider height starts at approximately 145 cm, but height alone does not decide the fit. Compare the top tube, 13.25-inch chainstays and 9-inch bar rise with your body proportions and a bike you can control comfortably.

Components that are easy to identify

The 25T sprocket works with a 9T cassette driver. Sealed cartridge bearings in the integrated headset and Mid bottom bracket help keep contamination away from their bearing surfaces. The front hub uses loose ball bearings and the rear is semi-sealed; regular adjustment and maintenance still matter.

This Justice version has LAGOS RSR 20 x 2.5-inch tyres, Lucky 6 grips and a suede combo saddle with an embroidered Justice logo and aluminium post. Check the assembly, brakes and wheel clearance before your first ride.

Mafiabikes Kush2+ Justice 20-inch BMX bike, 20.4-inch TT — specifications:

Sizing, weight and other details:

• Suggested rider height: Approx. 145 cm and taller
• Wheel size: 20 x 2.5 in
• Weight: 11.79 kg
• Riding style: Street, park and dirt, within the bike’s limits

Frame geometry:

• Top tube length (TT / A): 20.4 in
• Chainstay length (CS / B): 13.25 in
• Head tube angle (HA / C): 75°
• Seat tube angle (SA / D): 71°
• Bottom bracket height (BB / E): 11.75 in
• Seat tube height (F, bottom bracket centre to top of seat tube): 8.5 in

Handlebars:

• Bar: Height (G): 9 in; width (H): 29.5 in
• Handlebar material: Hi-Ten steel

Cranks:

• Cranks: Three-piece 4130 chromoly

Frame:

• Frame: Hi-Ten steel; integrated seat clamp

Fork:

• Fork: Hi-Ten steel, tapered legs

Stem:

• Stem: Forged, top load

Wheels and rims:

• Rims: Double wall, 20 in, 36H

Tyres:

• Tyres: LAGOS RSR, 20 x 2.5 in

Headset:

• Headset: Integrated, sealed cartridge bearings

Bottom bracket:

• Bottom bracket: Mid BB, sealed cartridge bearings

Chainring or sprocket:

• Sprocket: CNC-machined, 25T

Rear hub and driver:

• Rear driver: 9T cassette
• Rear hub: 12 mm axle, semi-sealed cassette

Front hub:

• Front hub: 3/8 in axle, loose ball bearings

Chain:

• Chain: KMC

Brakes and controls:

• Rear brake: U-brake

Saddle and seatpost:

• Saddle: Suede combo with embroidered Justice logo and aluminium seatpost

Pedals:

• Pedals: VP platform

Grips and bar ends:

• Grips: Lucky 6

Safety while riding

Freestyle BMX riding puts high loads through the bike during tricks, 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

Use the letters in the specification to identify each measurement. TT is top tube length, CS is chainstay length, HA is head tube angle, SA is seat tube angle, BB is bottom bracket height and F is measured from the bottom bracket centre to the top of the seat tube. On the handlebar drawing, G marks bar rise and H marks bar width.