The SIBMX Beest 20" BMX Bike is the perfect choice for beginners who want to learn their first BMX tricks and build confidence at the skatepark or pump track. Its durable Hi-Ten frame, stable geometry and reliable components provide everything needed to start riding BMX.

SIBMX Beest 20" – Key Features

• Recommended rider height: approximately 145–160 cm
• Frame size: 20"
• Frame material: Hi-Ten 1020 steel
• Handlebar: 9" rise / 28.5" width
• Tyres: Sunday Current 20" × 2.4"
• Brake: Odyssey Springfield U-Brake
• Weight: 11.90 kg
• Skill level: Beginner

A Great BMX to Start Riding

The SIBMX Beest 20" is designed for riders taking their first steps into the world of BMX. Its responsive geometry makes learning bunny hops, manuals and basic tricks easier while providing confidence from the very first ride.

The 20" frame fits riders approximately 145–160 cm tall. This size offers balanced handling, making the bike easier to control when learning new skills and improving overall riding technique.

The Hi-Ten 1020 steel frame and fork provide the durability needed for everyday BMX riding. Wide Sunday Current 2.4" tyres deliver excellent grip, while the Odyssey Springfield U-Brake offers reliable braking control whenever you need it.

Who Is the SIBMX Beest For?

• Beginner BMX riders
• Riders approximately 145–160 cm tall
• Learning first BMX tricks
• Riding at skateparks and pump tracks
• Anyone looking for a reliable first BMX bike

What Size Should You Choose?

The SIBMX Beest features a 20" top tube and is recommended for riders approximately 145–160 cm tall.

The complete frame geometry can be found in the geometry chart below.

Ride Safe

Learning BMX tricks means pushing your limits, so proper protection is essential. We recommend wearing a quality helmet and suitable protective gear every time you ride.

SIBMX Beest 20" – Full Technical Specification

Frame

• Material: Hi-Ten 1020 steel
• Top Tube: 20"
• Chainstay: 13.25"–13.5"
• Head Angle: 75°
• Seat Angle: 71°
• Bottom Bracket Height: 11.5"
• Standover Height: 8.4"

Fork

• Material: Hi-Ten 1020 steel
• 2-piece construction

Handlebar

• Material: Hi-Ten 1020 steel
• Rise: 9"
• Width: 28.5"
• Backsweep: 12°
• Upsweep: 4°

Stem

• Material: Aluminium
• Top Load design

Headset

• 1-1/8" A-Headset
• Loose ball bearings

Rims / Wheels

• Material: Aluminium
• Size: 20"
• Single wall rims
• 36H

Tyres

• Sunday Current
• 20" × 2.4"

Crankset

• 4130 Cr-Mo
• One-piece
• 170 mm

Bottom Bracket

• US BB

Sprocket

• 33T

Front Hub

• Cr-Mo axle 10 mm (3/8")
• Ball bearings
• 36H

Rear Hub

• Freewheel hub
• Cr-Mo axle 14 mm
• 36H
• Odyssey 13T freewheel

Chain

• KMC Z410

Brake

• Rear: Odyssey Springfield U-Brake

Brake Lever

• 2-finger lever

Seat

• 1-piece Combo seat

Seatpost

• Integrated Combo design

Pedals

• Wellgo
• Nylon
• 9/16"

Grips

• Lamellen Grips

Weight

• 11.90 kg

Frame geometry:

• Top Tube (TT): 20"
• Chainstay (CS): 13.25"–13.5"
• Head Angle (HA): 75°
• Seat Angle (SA): 71°
• Bottom Bracket Height (BB): 11.5"
• Standover Height (SO): 8.4"
• Handlebar Rise: 9"
• Handlebar Width: 28.5"
• 1" = 2.54 cm

BMX bikes are built for tricks and are exposed to high impacts during riding. No freestyle bike is indestructible. Regularly inspect the frame, fork, wheels, drivetrain and all bolts. Routine maintenance improves safety and helps extend the lifespan of your bike.

Important Information About Your New BMX Bike

• Read the warranty conditions supplied with your bike before your first ride.
• Your bike is delivered approximately 90% assembled.
• Before riding, install the pedals, handlebar, seat and, if required, the front wheel.
• The manufacturer recommends having the bike inspected by a professional bicycle workshop before the first ride. This service is chargeable and is required to keep the manufacturer's warranty valid. Keep your service receipt.

Service Notice

Before riding your new BMX bike, visit a professional bicycle workshop for an initial safety inspection. This helps eliminate any assembly-related play and ensures your manufacturer's warranty remains valid.