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Frog 78 Kids Bike - 26 Inch


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Product Details

Frog 78 Kids' Hybrid Bike

With its 26 inch wheels and 18 inch frame, the Frog 78 is a perfect fit for youngsters from 13 years old.

Bigger wheels - better ride
The Frog 78 is built on a 18-inch frame that takes adult size 26 inch wheels. Everything else being equal, 26 inch-wheels are faster than smaller wheels and they are more capable of rolling over obstacles.

26 inch wheels can also be more convenient. If fellow family members ride 26 inch wheel mountain bikes or hybrids, you can share the same spare tubes and so on when you go out together.

Lighter Weight
Frog bikes, like most better-quality adult bicycles, are built on aluminium frames with (mostly) aluminium parts to keep their weight to a minimum. What makes Frog really stand out is that their forks, hubs, bars, stems, seatposts, V-brakes & levers are all alloy too. This makes a Frog bike kilos lighter than most of their competitors' equivalent sized kids' bikes.

Faster wheels
Another original detail is that the Frog 78 comes with lightweight alloy quick release wheels fitted with good quality Kenda 26 x 1.5 inch hybrid tyres which will be easier rolling than the 26 x 2 inch knobbly mountain bike tyres you'll find on most of their competitors' bikes. Skinnier tyres make a Frog bike easier to accelerate and hence more fun to ride much of the time.

Second pair of tyres
Having said that, if you young-one wants to get more adventurous, you'll be delighted to hear that the Frog 78 comes supplied with a second pair of knobbly mountain bike tyres. That way, a simple tyre swap will make the bike fit for dirt tracks and trail centres.

Colour choice
Technical attributes aside, this is no ugly frog. Frog bikes look good, so your child should be really proud to own one. To help ensure the bike delights, Frog bicycles are available in a choice of colours.

Frog Video
Frog's passion for making better bikes for kids shines through in this video.


More good things about the Frog 73

  • Lightweight aluminium alloy frame (18 inch seat tube) and fork.
  • Easy to use high quality Shimano Alivio Rapidfire Plus 8-speed gear shifter and Altus rear derailleur.
  • While their competitors make do with entry level Shimano Tourney gearing, Frog hybrid bikes come with mid-range Shimano Alivio/Altus, frequently spec'd on £500-£600 adult bikes.
  • The alloy cranks are a child-friendly short (155mm) length with 34t chainring.
  • The sealed bottom bracket ensures these cranks spin freely.
  • The aluminium wheels are quick release so there is no need to carry a spanner to change the inner tube
  • The 520mm alloy handlebar is fitted with narrow grips for smaller hands.
  • This bars are fitted to a short 40mm alloy stem to keep them within easy reach.
  • Tektro alloy V-brakes with alloy levers are a common sight on good quality £300-£400 adult bikes.
  • The saddle is fitted to a full-length 300mm long x 27.2mm diameter seatpost to ensure this bike 'grows' with the young rider.
  • The QR (quick release) seat binder facilitates easy seat adjustment.
  • Minimum recommended inside leg measurement to the floor: 78cm.
  • Minimum recommended child height: 160cm.
  • Approximate age range: from 13 years old.
  • Manufacturer's published weight:

Kids Bike Size Guide >

Shop All Kids Bikes >

Shop All Kids 26 Inch Bikes

Don't forget A Helmet

Technical Specifications

FrameAluminium 18 inch Frog 78 Frame
ForkAluminium Fork
Wheel Size26"
Head SetNeco, 1"1/8 semi-integrated threadless, aluminium Frog Bikes top cap
Bottom BracketNeco, square taper, 68/107.5, cartridge bearings
Crank SetFrog Bikes patented aluminium straight arm cranks with Frog Bikes double chain guard, 155mm, steel 34t chainring
BrakesTektro 836AL, aluminium, linear pull
Brake LeversFrog Bikes' designed Tektro easy reach brake lever
StemAluminium, 1"1/8, 60mm, 4 bolt clamp
HandlebarFrog Bikes Aluminum  Straight Handlebar Width 540mm
GripFrog Bikes Specific Slim Grips
SaddleFrog Bikes junior specific saddle (medium), w/ steel rails/td>
Seat PostAluminum 27.2
PedalFrog Bikes eco-friendly rice husk composite pedal, w/reflectors, 9/16"
RimAluminium, 26x1.5, double wall, machined braking surface.
HubsAluminium 28 holes
TyresKenda 26" x 1.5" hybrid tyres..
TubesKenda 26" x 1.5" with Schrader Valves
Right Hand Gear ShifterShimano Alivio Rapidfire Plus 8-speed
Rear DerailleurShimano Altus RD-M310
CassetteShimano Altus, HG-31, 8-speed, 11-32t
MudguardPlastic Mudguards front and rear Please be aware that the mudguards supplied with the bike can only be used with the Hybrid tyres. Frog are aware of the situation and are currently working to find a solution


Our suppliers reserve the right to change specifications and prices without notice. Edinburgh Bicycle Cooperative will do all it can to maintain prices and specifications on this web site, however we do reserve the right to change specifications and prices without notice. Similarly, despite the wonders of modern computers, it is realistic to expect the colour of any item bought to differ subtly from the image online.