Alpha Three

148 reviews
Speed Silver
Braap Blue
Party Pink
Rapid Red
$19 shipping
in the Continental USA
Checked and Tuned
Each bike is checked & tuned prior to shipment.
Easy Assembly
Includes all the tools you need & easy instructions.

Loaded with Features Obsessively Thought Out for Kids



Size Guide

Prevelo Bike Sizing

Getting your kids the right size bike is important and, fortunately, also easy. You just need two pieces of information about your little rider:

  • Inseam
  • Rider Experience

Measuring Inseam

  1. Have the rider stand against a wall, hold a book between their legs so that it is firmly against their crotch  and the wall (the same place their bicycle seat will be).
  2. Measure the distance from the floor to the top of the book.
Prevelo Bike Inseam Kid

Rider Experience

Children who are learning are more sensitive to bicycle height than children who already know how to ride a bike. If the rider is new we recommend erring on the side of a smaller bike.  If the rider is experienced and confident, it is OK to err on the side of a larger bike.


We include ride age as guidance for our bikes as a quick reference. But because riders of the same age can have very different sizes, inseam is a more reliable size indicator than age.

    ModelMin InseamMax Inseam
    Alpha Zero12½ in16½ in
    Alpha One14 in17½ in
    Alpha Two15½ in22 in
    Alpha Three19 in23 in
    Alpha Four23 in28 in
    Alpha Five25 in30 in
    Zulu One14 in17 in
    Zulu Two16 in22 in
    Zulu Three21 in26 in
    Zulu Four24 in29 in
    Zulu Five25 in31 in

    Alpha Three Assembly

    Customer Reviews
    4.9 Based on 148 Reviews
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    Filter Reviews:
      Jean K.
      United States United States
      • How would you rate the fit? SmallPerfectLarge
      • Rider's age in years 6 yrs.

      Great bike and service!

      We, my grandson, his parents, and I are extreemly happy with the purchase of this bike. This is kinda of an understatement in the case of my grandson, as he has been in a state of euphoria since receiving it! My son and daughter- in -law are pleased about the quality and ease of assembly. I am happy with great customer service and mostly about the smile on my beloved grandson's face.

      Steve P.
      United States United States
      • How would you rate the fit? SmallPerfectLarge
      • Rider's age in years 5 -

      The best bikes PERIOD

      Fit and finish - world class Design for the little groms - best out there Pre-assembly and tuning - bike arrives adjusted and ready to roll. I have had many direct to consumer bikes over the years. None of them are actually adjusted properly out of the box. EXCEPT PREVELO! 9sd drivetrain shifting flawlessly right out of the box.

      Jill S.
      United States United States
      • How would you rate the fit? SmallPerfectLarge
      • Rider's age in years 6

      "best bike ever"

      This is my sons first geared bike. He has already mastered how to change gears. He loves to go fast! He is six and looks very comfortable on the bike. The bike has quality parts and was well made.

      Abigail H.
      United States United States
      • How would you rate the fit? SmallPerfectLarge
      • Rider's age in years 4

      Great bike!

      This is our second Prevelo bike. We started with the Alpha One when my son turned 3 and upgraded to the Alpha Three now that’s he’s 4.5 and mostly outgrew the One. These are solid bikes, way nicer than any bike I had growing up! Upon putting it together I thought my son might have some trouble adjusting from the One to the Three because of how much bigger it is but he took right to it and he’s loving his new bike. We stuck with Prevelo because of all the features, it’s lighter weight than most, and we feel confident it will last through our three boys. My son does wish it came in red but I got him the red handle grips for the silver bike and he seems pleased. Highly recommend!

      Prevelo Bikes Alpha Three Review
      United States United States
      • How would you rate the fit? SmallPerfectLarge
      • Rider's age in years 6

      Look no further. This is the one to get!

      The Prevelo bike has definitely been the biggest factor in helping my six-year-old learn how to ride a bike. She struggled for a year on a huffy, but within 30 minutes on a Prevelo Alpha Three, she was cruising in the parking lot. There was clearly a lot of thought and engineering geared toward child ergonomics. My kid attributes her success to her new bike and so do I. Jacob personally assembled our bike and it is just beautiful. He took time to answer all our questions and treated us like old friends. He made lifetime customers out of us. If you’re looking for a bike for your kid, look no further. This is the bike to get. As a bonus, you’d be supporting a cool dude and his family business!

      Prevelo Bikes Alpha Three ReviewPrevelo Bikes Alpha Three ReviewPrevelo Bikes Alpha Three Review