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Prevelo Kids Bike - Alpha Four Kid's Complete Bike

Code: PRV.A4
  • $731
Item in Stock   |   Usually dispatched within 48 hours

The 24" Alpha Four offers an NEW 9-speed Microshift drive train. The 11-36T wide range gearing is the real deal and gives growing riders truly usable gear range. It features:

  • Prevelo confidence inspiring low and narrow geometry. Prevelo geometry keeps the rider low, balanced and in control.
  • 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.
  • NEW 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.
  • 11-36T wide span gearing gives riders plenty of range to spin up tough hills.
  • 95% assembled. Just install the handlebar, seatpost, front wheel and pedals.
Weight (including pedals)21.2 lbs / 9.6 kg
Minimum Saddle Height25.8 in / 655 mm
Maximum Saddle Height31.2 in / 792 mm
Bottom Bracket Height9.9 in / 252 mm
Gain Ratio1.9 - 6.8
Standover (ground to top of top tube)22 in / 558.8mm

Geo Diagram

A Wheel Size24"
B Wheelbase38.1 in / 968 mm
C Effective Top Tube Length19.6 in / 498 mm
D Head Angle69°
E Seat Tube Angle69°
F Chain Stay Length16.3 in / 415 mm
Frame6061 heat treated aluminium alloy custom formed tubing
ForkAluminium alloy blades with chromoly steerer tube - 35mm rake
Seat ClampAluminium alloy with toolless adjustment
Front BrakeTektro aluminium alloy V-brake
Rear BrakeTektro aluminium alloy V-brake
Front Brake LeverTektro aluminium alloy
Rear Brake LeverTektro aluminium alloy
Rear Derailleur9-Speed Microshift
Shifter RearMicroshift Thumb Shifter
Crank SetPrevelo anodized alloy 3-piece square taper with 130mm crank length.
Sprocket32T with double chain ring guard
Bb SetSealed cartridge
Head Set1.1/8" threadless
RimAluminium with ground sidewalls
Front HubLightweight alloy 1-piece forged CNC
Rear HubLightweight alloy 1-piece forged CNC
Tire & TubeKenda Small Block Eight Pro 24 × 1.5
SaddlePrevelo big kid saddle
HandlebarPrevelo aluminium big bore - 580mm width x 40mm rise with 31.8mm to 22mm taper
Handlebar StemAluminium 35mm extension
GripKraton rubber
PedalComposite with 9/16" chromoly axle

All out products are shipped by FedEx providing unprecedented reliability and speed.

Shipping on all domestic orders over $620 (excluding bikes and home trainers) for delivery within the UK is completely FREE!

Bike and Home Trainers and oversize Goods FREE - FedEX

To qualify for free shipping:

Your delivery address must be within the United Kingdom Mainland (Channel Islands, Isle of Mann and Scotish Isles are not Mainland)

Your order, after any discounts, must be $62 or over

For all other orders including those under $62 there is a postage charge of $10


If you have any questions about delivery charges, times or none delivery please do not hesitate to get in touch by or by telephone on +44 (0)1782 768622. Handling is normally 48 hours, but at busy periods this may be extended but we will endeavour to process your order within 5 working days, please contact us for more details


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