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Giatex FIT B20 is specially designed for children 125cm–165cm tall. For children within the height range, neither the child bikes nor the adult ones fit them because the bikes are either too small or too big. Although the height of the seat tube may be adjusted in most child bikes to match the rider’s height, the distance between the handlebar and the top tube (T/T) can not. Therefore, children often adopt an improper posture to ride bikes that have the wrong sized frame for them. GIATEX FIT B20 patented stretchable frame can be adjusted, with which children will always ride a bike in a proper posture and enjoy a comfortable riding experience.

  • Biking info

    Giatex FIT B20, with adjustable top tube (T/T) size 45cm-53cm, is recommended for riders 125cm–165cm tall. The height of the seat tube is adjusted to the extent that both feet of the riders may reach the ground easily. The height of the top tube may be increased little by little as children grow.


    Height         Top tube T/T distance

    125cm          45cm

    135cm          46cm

    145cm          48cm

    155cm           50cm

    165cm           53cm

  • Detail information

    Saddle ground clearance: 66cm - 86cm

    Upper tube size (T/T): 45cm - 53cm

    Handlebar ground clearance: 93cm - 98cm

    Recommended height: 125cm - 165cm

  • Specification

    Product name: 20" adjustable bicycle

    Model: FIT B20

    Frame: Aluminum alloy

    Tire: 20"

    Fork: Iron fork

    Brake: Front and rear V clips

    Derailleur: Shimano TY 21 6 speed

    Freewheel: 14-28 T

    Chainwheel: 48T*152mm

    Weight: 11.5 Kg

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