The 20-inch kids’ hybrid bike, has been carefully designed to help maximise the lifetime of the bike for a growing child. It is the ideal multi-purpose bike for 5 to 8-year-olds with an average inside leg of 53cm.

The handlebars can be lowered or raised within a range of 40mm and adjusting the seat height is easy to do at home with the quick release system. This means a Frog Bike will grow with your child making it a great investment.

The bike also offers a lower bottom bracket position to ensure a safer riding position with feet closer to the ground, whilst allowing for a greater leg-length range to be accommodated. An additional 10mm spacer is placed above the handlebar stem to give the option to raise the handlebars higher as your child grows.

Designed and built in Great Britain, our hybrid bikes are perfect for roads, pavements, towpaths and forest trails. They come with mudguards and the option to attach a pannier rack to the frame, for ease of transporting school books and sports kits.

Our bikes inspire children to ride. From their lightweight child-specific frame that is easy to handle and manoeuvre, to the brakes that are specifically designed for small hands to grab, this all results in a confident bike rider who will jump at every opportunity to get out on their bike exploring.

Wheel Size: 20″ inch

Why buy a Frog 53?
– Lightweight and sturdy frame, which makes the bike easy to manoeuvre
– The total weight of the bike including pedals is 8.15kg, which is 400g lighter than its predecessor
– Tektro brakes with small, easy to reach brake levers. Better control means improved confidence for young riders
– FrogFitTechnology® youth-specific 8-speed gear shifters with short lever travel and ultraslick cabling make changing gear and undulating rides a breeze
– Patented Frog cranks maintain a low Q-Factor (the distance between the pedals) for easier pedalling. A reduced distance between the pedals allows for maximum leverage on the pedals increasing efficiency
– Quick-release seat post for easy height adjustment as they grow
– Free 5-year warranty on frame and forks
– Reflectors, mudguard and bell included

Available colours*: Electric Blue, Green, Orange, Pink, Purple, Red and Spotty


Product Safety Certification: ISO 4210 and CPSC 1512 (CFR 1512)

Approx Age: 5-7

Wheel Size: 20″

Bike Weight: 8.15kg (incl pedals)

Frame: 6061 T6 heat treated Aluminum alloy, seat tube 11″ (280mm)

Fork: 6061 T6 heat treated aluminium alloy

Front Hub: Quando, Aluminum, sealed hub, QR, 20 hole

Rear Hub: Quando, Aluminum, sealed hub, QR, 20 hole, Shimano type 8/9spd free hub body

Cassette/Free wheel: 8-speed, 11-32t

Rear Derailleur: Shimano Altus, M310, 8-speed

Rim: Aluminium, 20″, double wall, machined braking surface

Seat Clamp: Aluminium, QR

Headset: Neco, 1″1/8 semi-integrated threadless, Frog Bikes top cap

Stem: Aluminium, 1″1/8, 38mm, 4 bolt clamp

Grips/Bar tape: Frog Bikes specific, lock on, slim grips

Gear Shifter: FrogFitTechnology®️ youth-specific 8-speed with short lever travel and ultraslick gear cable

Brakes (F&R): Tektro 836AL, Aluminum, linear pull

Tyres: Kenda K1047, 20″x1.5″, Hybrid, (ETRTO/ISO 38-406)

Mudguards: Full length, resin, black

Accessories box: Bell, bike reflectors white/red, wheel reflectors orange/white, paint plasters, frame protector patches

Crank set / Chainring: Frog Bikes Patented,114mm, Aluminum straight arm cranks, 32T chainring, black

Bottom Bracket: Thun Shorty-ML-SL; square taper, 68/108/107.5

Pedals: Frog Bikes, eco-friendly rice husk & plastic composite, with reflectors, 9/16″

Chain: KMC, 8-speed

Handlebar: Aluminium, flat bar, 460mm

Brake Levers: Tektro JL510, aluminium, easy reach

Saddle: Frog Bikes child-specific saddle (small), steel rails


A Wheelbase (mm) 848
B Seatube Angle (Degrees) 74
C Head tube angle (degrees) 71
D Effective top tube (mm) 440
E Head tube length (mm) 100
F Chain stay length (mm) 361
G Seat tube Length 280
H BB to Floor (mm) 216


3 – 5 Chester Road East

Tel: 01244 831110

Mon – Fri 9:00am – 5:30pm  Saturday 9:00am – 5:00pm Sunday – Closed

3 – 5 Chester Road East Shotton Deeside CH5 1QA Tel: 01244 831110 Mon – Fri 9:00am – 5:30pm  Saturday 9:00am – 5:00pm Sunday – Closed