When it comes to buying your child their first proper bike, or upgrading them to the next size - few brands are as trusted as Frog Bikes. Renowned for their lightweight design, child-specific geometry, and a focus on comfort, style, quality and performance, Frog Bikes are a go-to choice for families who want their kids to enjoy cycling from the very first ride.
At Tweeks Cycles, we stock a comprehensive range of Frog kids’ bikes, including the most popular sizes and models: the 44, 47, 53, 61, and 67. Whether your child is just coming off stabilisers or already flying along cycle paths or trails, there's a Frog bike to fit them perfectly.
Let’s take a closer look at these six key models to help you find the ideal ride for your young cyclist.
Why Choose Frog Bikes?
Before diving into the specifics, here’s why Frog stands out in the crowded world of kids' bikes:
-
Lightweight frames: Frog kids bikes are made from high-quality aluminium to reduce the effort needed to ride them, increase the fun factor and performance of the bikes AND ensure they’re built to last.
-
Child-specific geometry: Designed specifically for children’s proportions and strength. They aren’t just shrunk down adult bikes; they’re designed to fit kids perfectly.
-
Adjustable components: Handlebars, saddles, and brakes are all easy to adjust as your child grows. And if you want to pass the bike down to their younger siblings, you can re-adjust to fit them too!
-
Safety first: Frog’s brake levers are designed for small hands, and all models come with reflective tires and accessories.
-
Sustainability: Frog is committed to environmentally friendly practices, and their bikes are built to last and be handed down. Not only that, their packaging (and our own) follow the same principle.
Now you the brand’s biggest plus points, let's have a look over the range!
Frog 44 – First Big Bike (Age 4–5)
- Wheel size: 16”
- Inseam: 44cm (hence the name)
- Weight: Approx. 6.3kg
The Frog 44 is ideal for kids transitioning from a balance bike or stabilisers. It’s designed for riders with an inside leg of around 44cm, which generally means children aged 4 to 5 years. The ultra-light frame makes handling easy, while short-reach brakes and single speed gearing give young riders confidence.
Best for: Confident beginners ready for their first pedal bike.
Best Price: HERE
Frog 47 - Stepping Up (Age 5-6)
- Wheel size: 18”
- Inseam: 47cm
- Weight: Approx. 6.75kg
A step up from the 44, the Frog 47 suits slightly taller children and adds a bigger 18 inch wheels for added stability and comfort. It still gets a single-speed drivetrain though, which is perfect for teaching pedalling, balance, and braking without the complexity of gears.
Best for: Kids who have mastered the basics and want/need a slightly larger frame.
Best Price: HERE
Frog 53 - First Gears (Age 5-7)
- Wheel size: 20”
- Inseam: 53cm
- Weight: Approx. 8.15kg
The Frog 53 introduces gears for the first time in the range. It’s a great option for children aged 5 to 7 who are starting to take on longer rides or small hills. The Shimano/Frog 8-speed drivetrain features an easy to use trigger shifter; no tough to twist grip shifters here! These massively help kids learn how to use their bikes gears to manage different terrains.
Best for: Lightweight gearing system ideal for young hands and varied terrain.
Best Price: HERE
Frog 61 - The (bigger) Adventure Bike (Age 8-10)
- Wheel size: 24”
- Inseam: 61cm
- Weight: Approx. 9kg
- Gears: 8-speed Shimano
As your child becomes an older and more confident cyclist, the Frog 61 offers the versatility needed for parks, light off road trails, and commutes to school. With a more mature geometry and gearing system, it feels like a mini adult bike—just scaled perfectly for an 8–10-year-old. It’s just like the 53, but bigger!
Best for: Riders who are ready for adventure, speed, and distance.
Best Price: HERE
Frog 67 - The next drop bar superstar? (Age 10-12)
- Wheel size: 26”
- Inseam: 67cm
- Weight: Approx. 9.2kg
- Gears: 8-speed Shimano
What if your kids want a drop bar bike like mum or dad? They need the Frog 67! This miniature, 26” wheel drop bar bike is designed for the pre-teen rider who’s nearly ready to take their first steps to becoming the next Tadej Pogacar! But what if they want to take it off the road and dream of being Mattheau Van de Poel? Then no worries, as it comes with a spare set of gravel/cross tyres in the box!
Best for: A road or gravel bike, just shrunken down for kids!
Best Price: HERE
Sizing Tips
When choosing the right Frog bike, inside leg measurement is more important than age or height. Use a tape measure to get your child’s inside leg (from the floor to the top of their thigh), and match it with the corresponding Frog model:
-
Frog 44 – 44cm
-
Frog 47 – 47cm
-
Frog 53 – 53cm
-
Frog 61 – 61cm
-
Frog 67 – 67cm
-
Frog 72 – 72cm
You may have already spotted the pattern; each model is named after the minimum inseam required—making it easy to choose the right fit!
Final Thoughts
Frog Bikes are a brilliant investment in your child’s cycling journey. Their thoughtful design, commitment to quality, and child-focused features make them a top choice for parents and young riders alike.
At Tweeks Cycles, we offer expert advice and aftercare for every Frog bike we sell. Whether your child is just starting out on the Frog 44 or zipping through trails on a Frog 67, you can be confident they’re riding one of the best kids' bikes on the market!
Ready to find the perfect fit? Browse our full range of Frog kids bikes online or visit us in-store for a test ride.