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Code: FROG-52
Frog 52 Kids Bike (5-6 years)

The Frog 52’s hi-quality lightweight frame and forks, make this kid’s bike tough enough for wild cycling adventures in the woods! The Tektro brakes with adjustable levers designed for kid’s hands, 7-speed Shimano easy-twist gears and easily adjusted saddle height.  

Comes with a bell, reflectors and mudguards as standard. Suitable for minimum inside leg of 52cm (around 5-6 years old), it has 20" wheels. Free 5 year warranty available on the frame and forks, 2 years on all other parts.


  • Weight: 8.8 kg
  • Fork: Aluminium Fork
  • Frame: Aluminium 10" Frog 52 Frame
  • Wheel Size: 20"
  • Crank Set: 127mm Aluminium Black Crank
  • Chain Ring: 36T
  • Chain Guard: Integral Black Double Chain Guard
  • Brakes: Tektro 836AL Aluminium V Brake Black
  • Length of top tube: 449mm (horizontal distance from seat post to stem: 474mm)
  • Stem: Frog Bikes Aluminium 40mm Stem
  • Handlebar: Frog Bikes Aluminium Straight Handlebar Width 480mm
  • Grip: Frog Bikes Specific Slim Grips
  • Saddle: Frog Bikes Saddle 
  • Seat Post: Aluminium 250mm, Quick Release
  • Pedal: Plastic with Ball Bearings and Reflectors
  • Wheelset: Aluminium 20"  Quick Release for easy removal of wheels
  • Supplied with off-road tyres
  • Right Hand Gear Shifter: Shimano Revo Shifter - 7 Speed 
  • Rear Derailleur: Shimano TX35 - 7 Speed
  • Mudguard: Plastic Mudguards front and rear

PLEASE NOTE:-  All of our bikes are built to order.  This usually takes between 3-5 working days depending on time of year


An excellent step up for my daughter and her first proper bike. Good quality and sensible component choice. I needed a bar swap to a high riser for comfort (low flat bars with a low front end on a kids bike?- Should come with a riser bar!) and now she loves it. Good paint finish, touch up paint and a spare set of knobblies cant be beaten. Great service and price as usual from Merlin.
It's not always easy to find stock of Frog bikes when you want them but Merlin had all colours available. The bike arrived in about 4 days. Great service and I thoroughly recommend.
My quite petite 6 year old daughter tried to move from her beloved Frog 42 to her sister's 20'' 3 speed bike but she couldn't ride on it at all. She couldn't cope with the weight, ergonomics, coaster brake and lack of freewheeling. What a contrast on the Frog 52. She could ride confidently straight away and it didn't take her long to get used to the gears. I was pleasantly surprised to also receive the extra set of knobbly tires, inner tubes and touch up paint in the box!
Great little bike for my son to grow with.
The bike looks great and the material & parts are high quality! My son loves the red colour, its his fire brigade bike :-). Although his minimum inside leg is only 48cm he is able to drive the bike already, albeit only his forward section of the foot reaches the bottom. Alltogether a wonderful bike, which I would recommend to other friends.