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Frog 55 8-Speed Bike

21 reviews


Electric Blue
Union Jack

Product Details

"The Frog Bikes 55 is worth its weight in gold." - Cyclocross Magazine

Fits:  6-8 years with a minimum of 22" (55cm) inseam

Availability:  Pre-Order Orange, Purple and Red for shipment on November 24th.  All other colors are temporarily sold out.

Engineered to be lightweight and stable, inspiring confidence in your child.  The Frog 55 has adjustable Tektro brakes, 8-speed Shimano easy-change thumb shifters and 8 speed cassette hub. The all-aluminum bike has a high quality frame, easily adjusted saddle height and a crank length of 114mm.   Versatility at its best with a more knobby off-road tire (that can also be used on the road or bike path). Comes with a bell, reflectors and mudguards as standard.  Suitable for minimum inseam of 22" (55cm) (around 6-7 years old), it has 20" wheels.  

Free 5 year warranty available on the frame and forks, 2 years on all other parts.

Read a full review by Cyclocross Magazine.

Frog 55 Video

Here is a 6 year old riding the Frog 55.  This child is 47" tall with an inseam of 18.75".  He is on the small side for this bike, but has been pedaling for 2 years so has no problem riding it.

Frog Bikes partners with USA cyclingFrog Bikes has partnered with USA Cycling to be their Official Kids' Bike through 2020.

Tech Specs

Approx Age 6-7 years
Color FROG: Red, Purple, Orange, White/Spots TEAM SKY: White/Blue, Black/Blue
Weight 8.8 kg or 19.4 lbs
Fork Aluminum Fork
Frame Aluminum 11" Frog 55 Frame
Wheel Size 20"
Headset 27mm
Bottom Bracket 110.5mm Sealed Bottom Bracket
Crank 114mm Aluminum Black Crank
Chain Ring Steel 32 Teeth
Chain Guard Integral Black Double Chain Guard
Brakes Tektro 836AL Aluminum V Brake Black
Brake Levers Tektro Aluminum JL510-TS V Brake Lever Black
Length of top tube 449mm (horizontal distance from seat post to stem: 474mm)
Stem Frog Bikes Aluminum 40mm Stem
Handle Bar Frog Bikes Aluminum Straight Handlebar Width 460mm
Grip Frog Bikes Locking Slim Grips
Saddle Frog Bikes Saddle Size:201*136mm, Black, adjustable rails for better fit
Seat Post Aluminum 250mm, 27.2mm wide, Quick Release
Pedal Plastic with Ball Bearings and Reflectors
Rim Aluminum 20" x 1.5" 28 holes Black (Weight:320g) and Quick Release for easy removal of wheels
Hubs Aluminum 28 holes
Kenda K1047, 20"x1.5", Hybrid, (ETRTO/ISO: 38-406)
Extra Tires
Tubes Kenda 20" x 1.5" with Schrader Valves
Right Hand Gear Shifter SLM360 Alivio 8 speed Right Hand Gear Lever
Rear Derailleur RD-FT55- Direct 8SP
Cassette Hub Shimano 8 Speed 12-32T
Mudguard Plastic Mudguards front and rear
Frame Protectors Clear stickers for chainstay and frame



All Frog 55 bikes arrive 90% assembled. All you need to do is install the pedals, seat post, handlebars and front wheel.  If you decide you want the optional mud guards on your bike, these will need to be installed also.  

Our professional bike technician looks over every bike before it ships and switches the hand brakes to be standard for the US (rear on the right, front on the left).  


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Customer Reviews
5.0 Based on 21 Reviews
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Filter Reviews:
Daniel W.
United States United States
Frog 55

Grandson and myself love it

June S.
United States United States
Previous purchases

My Grandson’s loves the theirrest new bikes! Great service & products❤️

United States United States
Awesome bike!

My 7 years old daughter loves her Frog 55 spotty bike. Beautiful light bike!

United States United States
Great Quality Bike

Easy to put together and a great quality bike. It was bought for a 7 year old boy and he loves it.

Charles M.
United States United States
Excellent Service and Bike

The Customer Service is fantastic! The bike seems great and sturdy.