Winter Clearance Sale going on NOW! 10% OFF Frog and Cleary Kids Bikes plus FREE SHIPPING!

Frog Bike Fit

Ensuring your child is on the correct size bike will lead to a happy, confident child ready for adventures. 

The most reliable way to determine the correct size Frog Bike for your child is to measure your child's inseam.  It's easy to do!  

How to measure your child's inseam:

    • Stand the child in socks against a wall
    • Place a small book between their legs, as high as is comfortable
    • Ask the child to move away and measure from the top of the book to the floor.
Once you have measured the inside leg, use the table below to find the right size of bike for your child. Please note we give the AVERAGE inside leg length for each bike, with the saddle at its lowest settingPlease be aware there is tolerance on each side of this.  At this height, the child will safely and comfortably be able to get their feet on the ground. Don’t worry - Frog Bikes have long seat posts, so the saddle can be raised a long way as the rider grows.
  Average inside leg in cm (in) Approx age Wheel Size Frame Size
Tadpole Mini 24cm (9") 1-2 10"   
Tadpole 31cm (12") 2-3 12"  
Tadpole Plus 38cm (15") 3-4 14"
Frog 40

40cm (16")

Minimum inseam of 15" for a 1st time pedaler

3-4 14" 9"
Frog 44 44cm (19") 4-5 16" 9.5"
Frog 52S  52cm (20") 5-6 20" 10"
Frog 52 52cm (20") 5-6 20" 10"
Frog 55 55cm (22") 6-7 20" 11"
Frog 62 62cm (24") 8-10 24" 12"
Frog 69 69cm (27") 10-12 26" 14"
Frog 73 73cm (29") 12-14 26" 16"
Frog 78  78cm (31") 13+  26"  18" 
Frog Road/Track 58 58cm (23") 6-7 20" 11"
Frog Road/Track 67 67cm (26") 8-12 24" 14"
Frog Road/Track 70 70cm (27") 11-14 26" 17"
Frog MTB 62 62cm (24") 8-10 24" 12.5" 
Frog MTB 69  69cm (27") 10-12 26" 15"
Frog MTB 72  72cm (28")  13+  26"  16"