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Prevelo Alpha Three 20" Bike

$499.99

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Product Details

With 8 gears, let the adventures begin!  

Fits:  5-9 yrs (inseam 17.5" - 23")

Availability: In stock for immediate shipment.

Your child will be climbing hills effortlessly with this lightweight 20" bicycle, engineered with an 8-speed Shimano drive train and 11-34T wide range gearing - the real deal - giving growing riders a truly usable gear range.

The Prevelo Alpha Three features:

  1. Prevelo confidence inspiring low and narrow geometry. Prevelo geometry keeps the rider low, balanced and in control.
  2. Lightweight 6061 aluminum frame with custom formed tubing.
  3. Lightweight aluminum alloy fork with chromoly steerer.
  4. Tektro front and rear v-brakes.
  5. Quick release front and rear wheels for toolless wheel removal.
  6. Three piece crank with squared taper bottom cartridge bearing bottom bracket and ultra narrow Q factor.
  7. Custom made cranks. All Prevelo cranks are sized specifically for each model bike, down to the millimeter.
  8. Shimano ALTUS 8-speed drivetrain. This 8-speed derailleur has a SHIMANO Smart cage. This unique pulley cage permits the use of 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 Smart cage derailleurs to keep things high and away from the ground.
  9. Shimano ACERA RAPIDFIRE Plus Shift Lever. Small hands have a hard time using twist shifters. We use reliable silky smooth thumb shifters. They are easy for small hands to operate, have an indicator display, and operate just like shifters on high performance bikes.
  10. 95% assembled. Just install the handlebar, seatpost, front wheel and pedals.

Components

COMPONENT SPECIFICATION
FRAME 6061 heat treated aluminum alloy custom formed tubing
FORK Aluminum alloy blades with chromoly steerer tube - 35mm rake
SEAT CLAMP Aluminum alloy with toolless adjustment
FRONT BRAKE Tektro aluminum alloy V-brake
REAR BRAKE Tektro aluminum alloy V-brake
FRONT BRAKE LEVER Tektro aluminum alloy
REAR DERAILLEUR 8-speed Shimano Altus double servo with Smart cage
SHIFTER REAR Shimano Acera RAPIDFIRE Plus
FREEWHEEL/CASSETTE Shimano 11-34T
CRANK SET Prevelo anodized alloy 3-piece square taper with 110MM crank length.
SPROCKET 32T with double chain ring guard
BB SET Sealed cartridge
HEAD SET 1 1/8" threadless
RIM Aluminum with grinded sidewalls
FRONT HUB Lightweight alloy 1-piece forged CNC with quick release
REAR HUB Lightweight alloy 1-piece forged CNC with quick release
TIRE & TUBE Kenda Small Block Eight Pro 20 ×1.5
SADDLE Prevelo big kid saddle
HANDLEBAR Prevelo aluminum big bore - 580mm width x 40mm rise with 31.8mm to 22mm taper
HANDLEBAR STEM Aluminum 60mm extension
GRIP Kraton rubber
PEDAL Composite with 9/16 chromoly axle

 

Geometry

Prevelo Alpha Three 20" Bike Geometry

MEASUREMENT SPECIFICATION
A Wheel Size 20"
B Wheelbase 32.9 in / 835 mm
C Effective Top Tube Length 17.4 in / 443 mm
D Head Angle 69°
E Seat Tube Angle 71.5°
F Chain Stay Length 13.8 in / 350 mm

 

Weights & Heights

Weight (including pedals) 18.9 lbs / 8.6 kg
Minimum Saddle Height 20.7 in / 525 mm
Maximum Saddle Height 25.5 in / 648 mm
Bottom Bracket Height 8.1 in / 205 mm

 

 

 

 

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