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Our most popular 20" kid's bike, Frog Bikes' 52 is made for unforgettable adventures, from family outings, to exploring the woods, the 52 is perfect for kids aged 5-6 to spread their wings.
Our most popular 20" kid's bike, Frog Bikes' 52 is made for unforgettable adventures, from family outings, to exploring the woods, the 52 is perfect for kids aged 5-6 to spread their wings.
Frog Bikes

Frog Bikes 52 2021 20 Inch Kids Bike Green

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Please read and fully understand this policy before returning goods to us.

It is your responsibility to ensure that the item is returned to us in a safe and secure manner, we suggest that you use a recorded postal/courier service. Please ensure that the service you use covers the value of the goods in the parcel.

If you wish to exchange an item for any reason the quickest and simplest way to do this is to place a new order for the item you want and return the other item for a refund.

Frog Bikes 52 2021 20 Inch Kids Bike Green

Season : 2021

Brand : Frog Bikes

Code : FR5202-GRN

Introduce adventure. Frog's 52 is built for exploring, helping them develop a healthy obsession with nature. 

Frog's 52 is still built to the same high standards using quality aluminium and trusted components to create a lighter kid's bike that is much more enjoyable to ride and easier to control than cheaper steel bikes.

The Frog Bikes 52 is the first bike in the Frog range to offer gears. Shimano's 8 speed groupset provides a greater range of gears for them to explore easier and includes a easy change thumb shifter. Tektro V-Brakes offer the control needed for off road riding and include a pair of levers designed for their smaller hands.

  • Suitable for Riders Aged 5-6 Years Old With an Inside Leg of 52cm
  • Lightweight Aluminium Frame Built to High Standards With a 5 Year Warranty
  • Great Choice of Colours From Bright Pink to Team Sky Inspired Designs
  • Includes a Bell, Reflectors, Mudguards, and 2 Year Component Warranty
Technical Information

Key Specifications

  • Frame - Aluminium 10"
  • Fork - Aluminium
  • Drivetrain - Shimano Alivio 8 Speed
  • Brakes - Tektro836ALAluminium V

Full Specification

  • Frame - Aluminium 10"
  • Fork - Aluminium
  • Shock - n/a
  • Number of Gears - 8
  • Shifters - ShimanoSL-M360Alivio8 Speed Easy Change Thumb
  • Chainset - 114mmAluminium Black
  • Chainrings - Steel32T
  • Cassette - Shimano8 Speed12-32T
  • Chain - 8 Speed
  • Front Derailleur - n/a
  • Rear Derailleur - RD-M310Direct 8 Speed
  • Bottom Bracket - 110.5mm Sealed
  • Pedals - Plastic With Ball Bearings and Reflectors
  • Rims - Aluminium 20x1.5"28HBlack
  • Front Hub - Aluminium28H
  • Rear Hub - Aluminium28H
  • Front Tyre - Kenda K1153, 20"x1.75", MTB, (ETRTO/ISO 47-406)
  • Rear Tyre - Kenda K1153, 20"x1.75", MTB, (ETRTO/ISO 47-406)
  • Front Brake - Tektro836ALAluminium V Black
  • Rear Brake - Tektro836ALAluminium V Black
  • Brake Levers - TektroAluminiumJL510-TSV Black
  • Handlebars - Frog Bikes Aluminium Straight460mm
  • Grips - Frog Bikes Locking Slim
  • Headset - 27mm
  • Stem - Frog Bikes Aluminium38mm
  • Saddle - Frog Bikes201x136mmBlack, Adjustable Rails
  • Seatpost - Aluminium 27.2x250mm
  • Post Clamp - QR
  • Weight - 8.75kg
  • Manufacturers disclaimer - Please note that, based on component availability and other factors, specifications are subject to change without notice.
Sizing Information

Every child is different which is why Frog Bikes use your child's inside leg measurement to help find them their perfect bike. This method is much more accurate than simple age ranges and is easy to measure in three steps:

  1. 1. Stand your child against a wall in their socks
  2. 2. Place a small book between their legs, as high as comfortable
  3. 3. Ask your child to move away, and measure from the top of the book to the floor

Once you have this measurement, use the table below to find the correct bike for your child. This table uses the minimum inside leg measurement for each bike where your child can safely and comfortably place their feet on the ground. Don't worry though as Frog Bikes are supplied with room to grow thanks to their long seatposts.

  Inside Leg Approx Age Wheel Size Frame Size
Tadpole 32cm 2-3 12" 4"
Tadpole Plus 38cm 3-4 14" 4"
Frog 40 40cm 3-4 14" 9"
Frog 48 48cm 4-5 16" 9.5"
Frog 52 52cm 5-6 20" 10"
Frog 55 55cm 6-7 20" 11"
Frog 62 62cm 8-10 24" 12"
Frog 69 69cm 10-12 26" 14"
Frog 73 73cm 12-14 26" 16"
Frog 78 78cm 13+ 26" 18"
Frog Road/Track 58 58cm 6-7 20" 11"
Frog Road/Track 67 67cm 8-12 24" 14"
Frog Road/Track 70 70cm 11-14 26" 17"
Frog MTB 62 62cm 8-10 24" 12.5"
Frog MTB 69 69cm 10-12 26" 15"
Frog MTB 72 72cm 13+ 26" 16"


Still undecided? Why not visit our stores, we carry Frog Bikes on our Hire Fleet, where you can benefit from a long test ride and expert fitting.


Professional Opinion
If you want your child to enjoy their cycling then the minimum you'd want is a bike that's not over-heavy, with components that work and that fit them. The Frog easily surpasses that minimum; it's a bike that children really enjoy riding and that's the experience that any parent wants their child to have of cycling. The Frog's built to last with good components and when the time comes to sell it on I'd expect it to hold its value very well.
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