The Frog 62 is special because it is at the spear tip of a new movement in children’s bicycle development that fits better and weighs less.

The Frog 62 shows off a new approach in kid’s bike design

by John Brown,

It almost feels like Christmas here at Why such a great day?…..Because we have a new bike to review! The Frog 62, our review bike, is special because for the first time this writer won’t be the one reviewing it (more about that in a bit). Frog Bicycles is at the spear tip of a new movement in children’s bikes. They develop bicycles exclusively for children that fit better and weigh less than anything else. Considering I am not a child, I won’t be riding this bike. Instead, that duty of reviewing the Frog 62 is being passed along to my nine year old son.

The Frog 62 Bike

The Frog 62 uses an aluminum frame and fork designed to accept 24” wheels, and is very light weight for a kid’s bike (sub 20lbs). On paper, the Frog 62 could look like almost any other kids bike, but looks can be deceiving as Frog has hidden a few amazing fit-features in plain sight. To start, the handlebar and stem combination on this bike is custom for Frog. It is shorter, lighter and perfectly sized for small riders. On that subject, Frog also produces a custom crank that has arms that are both shorter and narrower to accommodate children’s shorter legs and narrower stance. To accept a narrower crank, Frog needs to build their frames specifically to accept those custom cranks. Out of the box, the Frog 62 comes standard with two sets of tires (knobby and smooth) as well as a complete fender set.

Frog 62

Frog 62 in all its green splendor.


I know what you are going to say. “My little Billy destroys every bike we get him, why do I want to buy a bike with custom parts I can’t replace when Billy does what Billy does?” I knew what you were going to say and so did Frog, that’s why Frog designed their bike around that very issue. In my experience, kids find new ways to destroy bikes every year, but almost never break the crank or stem. So with the Frog 62, that is where they stop with proprietary parts. The rest of the bike is put together with readily available components. While most are readily available, Frog did use the best combination of parts to fit children better than ever before.

Frog 62

Frog’s custom crank in action.

The Fit

The biggest selling feature of a Frog bicycle is the fit. Many mid-sized children’s bikes are just scaled up, tiny, kid’s bikes. By this I mean there is little allotment for size, the bars are typically too high, top tubes are short and they are designed as if the child doesn’t know how to ride a bike. Frog bikes on the other hand uses ongoing scientific testing at Brunel University to drive their bicycle fit dimensions. Due to the results of their testing, the bikes are built to fit children better, handle more accurately, and weigh substantially less than the competition.

Frog 62

Next steps

With Minnesota locked in winter, my son and I won’t be heading out onto the bike paths any time soon. Instead, I plan to use this bike first as a teaching opportunity while the ground is covered with snow. Meaning, that my son and I will build the bike together. Then, I plan to complete a full bicycle fit for him. Paying careful attention to see just how well the engineers at Frog designed this bike for children’s proportions. Also. the knobby tires and fenders will be great for when the weather finally breaks. Stay tuned to learn how the bike fit and build go.

4 thoughts on “The Frog 62 shows off a new approach in kid’s bike design

  1. Ian Lindridge

    I would like to know why a derailleur system and not an internal geared hub. Are the brake levers child size? This is still a good move for encouraging children and early teens to continue seeing a bike as a means of reliable transportation (vs. trash on wheels), not just recreation.

    1. John Brown Post author

      I can’t speak entirely for Frog on why they decided to us an external vs. internal gear system but I can give a guess. Internally geared hubs with the same gear range as an external system usually weigh more and cost more.
      For the brake levers, Frog uses a kid’s specific lever designed by tektro that is available for aftermarket sale in your local bike shop. Additionally, they use kids sized pedals, grips, saddles, and light action shifters. Overall, it’s a well thought out product.

  2. Chris

    their main concern is the weight. (i can strongly agree, my daughter had some cheap 13kg-bike at 4 that she was able to ride (even for 2+km ranges) when pushed to start, but not start riding on her own. When we checked out the 7kg frogbike at the vendor, she just hopped on and i had to run after her;). for reference, my son rode that Frog48 at 3yrs and 3 months without problems. )
    just imagine a 20kg kid with a 12-15kg bike. that would translate into me at 90kg riding a 50kg bike… not a fun thought.

    for the break levers, they do use tektros fitted for kids that are shaped in an angle so the levers are very near to the grip and you just have to pull couple millimeters to shut the breaks completely.

    i disagree with this reviews stem/handlebar discussion actually. i replaced the new straight handlebars by a 5mm riser bar on the Frog55, because my daughter had problems reaching the grips while cornering. the very sportive looking geometry is actually a little too much for kids that just reach the recommended size of the bike (although now couple months later, it would probably be ok)

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