Prevelo Alpha Four 24-Inch 2023 Junior Bike

Prevelo confidence inspiring low and narrow geometry. Prevelo geometry keeps the rider low, balanced and in control.

Features

• Lightweight 6061 aluminium frame with custom formed tubing.
• Lightweight aluminium alloy fork with chromoly steerer.
• Tektro front and rear v-brakes.
• Lightweight Allen head front and rear wheel skewers for secure wheel installation.
• Three piece crank with squared taper bottom cartridge bearing bottom bracket and ultra narrow Q factor.
• Custom made cranks. All Prevelo cranks are sized specifically for each model bike, down to the millimetre.
• Microshift 9-speed drivetrain. Uses a shorter pulley cage without comprising gear ratio width. Because kids' bikes have small wheel diameters, rear derailleurs on kids bikes hang low and close to the ground. The Prevelo Alpha bikes use smaller cage derailleurs to keep things high and away from the ground.
• Microshift Trigger Shifters. Small hands have a hard time using twist shifters. We use reliable silky smooth thumb shifters. They are easy for small hands to operate, and operate just like shifters on high performance bikes.
• Replaceable derailleur hanger. If the derailleur takes a hard hit, the hanger can be replaced without repair to the frame.
• 11-36 Tooth wide span gearing gives riders plenty of range to spin up tough hills.
• 95% assembled. Just install the handlebar, seatpost, front wheel and pedals.

Specifications

Frame and Forks

• Frame: 6061 Heat Treated Aluminium Alloy Custom Formed Tubing
• Forks: Aluminium Alloy Blades With Chromoly Steerer Tube - 35mm Rake
• Headset: 1.1/8" Threadless

Drivetrain

• Rear Derailleur: 9-Speed Microshift
• Sprocket: 32 Tooth With Double Chain Ring Guard
• Freewheel/cassette: 11-36 Tooth
• Crank Set: Prevelo Anodized Alloy 3-Piece Square Taper With 130mm Crank Length
• Bottom Bracket Set: Sealed Cartridge

Braking/Shifting

• Brakes: Tektro Aluminium Alloy V-Brake
• Brake Levers: Tektro Aluminium Alloy
• Shifter: Microshift Thumb Shifter

Wheels

• Rims: Aluminium With Ground Sidewalls
• Front Hub: Lightweight Alloy 1-Piece Forged CNC
• Rear Hub: Lightweight Alloy 1-Piece Forged CNC
• Tyres: Kenda Small Block Eight Pro 24 × 1.5"

Finishing Kit

• Handlebars: Prevelo Aluminium Big Bore - 580mm Width X 40mm Rise With 31.8mm To 22mm Taper
• Stem: Aluminium 35mm Extension
• Grips: Kraton Rubber
• Seat Clamp: Aluminium Alloy With Toolless Adjustment
• Saddle: Prevelo Big Kid Saddle
• Pedals: Composite With 9/16" Chromoly Axle

Geometry

• Weight: 21.2 Lbs / 9.6 Kg
• Minimum Saddle Height: 25.8 In / 655 Mm
• Maximum Saddle Height: 31.2 In / 792 Mm
• Bottom Bracket Height: 9.9 In / 252 Mm
• Gain Ratio: 1.9 - 6.8
• Standover (ground To Top Of Top Tube): 22 In / 558.8mm