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Unleash the hidden racer, Frog Bikes' Road 58 is built to the same high standards as an adult racing bike giving them the enjoyment of the open road and a competitive edge on race day.
Unleash the hidden racer, Frog Bikes' Road 58 is built to the same high standards as an adult racing bike giving them the enjoyment of the open road and a competitive edge on race day.
Frog Bikes

Frog Bikes Road 58 2020 2021 Inch Kids Road Bike Red

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Frog Bikes Road 58 2020 2021 Inch Kids Road Bike Red Information

Season : 2019

Brand : Frog Bikes

Code : RD5802

Sometimes, they just want to be like you. Now thanks to the Road 58 by Frog, they no longer have to be stuck with a hybrid or mountain bike inspired kid's bike. The Frog Road 58 is completely designed for the open road and combines a light alloy frame with child specific road components.

Shimano and Microshift 9 speed components are combined with MicroShift integrated brake and shifters with special short-reach brake levers for their small hands. These shifters are mounted onto narrow, short-drop child specific road handlebars to provide them with the same hand positions as an adult racing bike.

  • Suitable for Riders Aged 6-7 Years Old With an Inside Leg of 58cm
  • Lightweight Aluminium Frame Built to High Standards With a 5 Year Warranty
  • Great Choice of Colours From Red to Team Sky Inspired Designs
  • Includes a Bell, Reflectors, and 2 Year Component Warranty


Rider Age Inside Leg Wheel Size
2.5 - 4 Years 13" - 15" 12"
3.5 - 5 Years 15" - 17" 14"
4.5 - 6.5 Years 17" - 19" 16"
5.5 - 7 Years 18" - 20" 18"
7 - 9 Years 19" - 23" 20"
9 - 11.5 Years 24" - 27" 24"

Found the perfect bike but puzzled by complex sizing?  See more bike sizing help

Technical Information

Key Specifications

  • Frame - Aluminium 11"
  • Fork - Aluminium 6061
  • Drivetrain - Shimano/Microshift 9 Speed
  • Brakes - Tektro Orux 992AG Cantilever

Full Specification

  • Frame - Aluminium 11"
  • Fork - Aluminium 6061
  • Shock - n/a
  • Number of Gears - 9
  • Shifters - Microshift SKBR492 9 Speed
  • Chainset - 114mm Aluminium Alloy Crank
  • Chainrings - Prowheel 34T
  • Cassette - Shimano 9 Speed 12-27T
  • Chain - 8 Speed
  • Front Derailleur - n/a
  • Rear Derailleur - Microshift RD-R42S, Short Cage
  • Bottom Bracket - 110.5mm Sealed
  • Pedals - Wellgo R090 Small
  • Rims - DA-20 Aluminium Double Wall, 20"
  • Front Hub - Quando Aluminium, Black
  • Rear Hub - Quando Aluminium, Black
  • Front Tyre - Kenda K-1018 20x1 1/8",
  • Rear Tyre - Kenda K-1018 20x1 1/8", 
  • Front Brake - Tektro Orux 992AG Aluminium Cantilever
  • Rear Brake - Tektro Orux 992AG Aluminium Cantilever
  • Brake Levers - Microshift SKBR492 With Tektro RL570
  • Handlebars - Frog Bikes Special Aluminium Alloy Drop Bar 320mm
  • Grips - Racing Tape With Caps
  • Headset - 27mm
  • Stem - 38mm
  • Saddle - Frog Bikes Racing
  • Seatpost - Aluminium 250mm
  • Post Clamp - QR
  • Weight - 8.20kg
Sizing Information

Every child is different which is why Frog Bikes use your child's inside leg measurement to help find them their perfect bike. This method is much more accurate than simple age ranges and is easy to measure in three steps:

  1. 1. Stand your child against a wall in their socks
  2. 2. Place a small book between their legs, as high as comfortable
  3. 3. Ask your child to move away, and measure from the top of the book to the floor

Once you have this measurement, use the table below to find the correct bike for your child. This table uses the minimum inside leg measurement for each bike where your child can safely and comfortably place their feet on the ground. Don't worry though as Frog Bikes are supplied with room to grow thanks to their long seatposts.

  Inside Leg Approx Age Wheel Size Frame Size
Tadpole 32cm 2-3 12" 4"
Tadpole Plus 38cm 3-4 14" 4"
Frog 40 40cm 3-4 14" 9"
Frog 48 48cm 4-5 16" 9.5"
Frog 52 52cm 5-6 20" 10"
Frog 55 55cm 6-7 20" 11"
Frog 62 62cm 8-10 24" 12"
Frog 69 69cm 10-12 26" 14"
Frog 73 73cm 12-14 26" 16"
Frog 78 78cm 13+ 26" 18"
Frog Road/Track 58 58cm 6-7 20" 11"
Frog Road/Track 67 67cm 8-12 24" 14"
Frog Road/Track 70 70cm 11-14 26" 17"
Frog MTB 62 62cm 8-10 24" 12.5"
Frog MTB 69 69cm 10-12 26" 15"
Frog MTB 72 72cm 13+ 26" 16"


Still undecided? Why not visit our stores, we carry Frog Bikes on our Hire Fleet, where you can benefit from a long test ride and expert fitting.


Professional Opinion
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