Concept Thunderbolt  18 Speed 24" Wheel Bike

Concept Thunderbolt 18 Speed 24" Wheel Bike

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Description / Specification

Concept Thunderbolt 18 Speed 24" Wheel Boys Bicycle

Another new junior bike from the clever bike geeks at Insync. This one is a cool customer, designed for the boy bike rider who wants to try some offroad riding. It's fitted with powerful front and rear V-type brakes, steel wheels with mountain bike tyres that will also give a good ride on tarmac surfaces. Finished in a exclusive blue colourway with subtle decals.


    • V Type brakes for an improved braking performance.
    • 24" Wheels.
    • Junior non-slip pedals prevent feet slipping off.
    • High rise handlebars help to promote a good riding position and ensure children are more aware of their surroundings.
    • Adjustable brake levers which can be easily operated by smaller hands.
    • Grips made from a softer dual compound for quality and comfort.
    • Boys Mountain Bike Saddle.
    • This bike features stand out styling on the frame.


        • Frame: Steel Boys 24" wheel ATB style frame.
        • Fork: 24" Steel Fork.
        • Headset: Steel Full Ball Bearing.
        • B.B Set: Cotterless 5 pieces.
        • Decals: CONCEPT THUNDERBOLT 24" WHEEL 2019.
        • Handlebar: Steel Lo-Rise Bar 580mm.
        • Stem: Steel MTB Type 22.2mm.
        • Grips: PVC MTB Type.
        • Front Brake: Alloy V Brake.
        • Rear Brake: Alloy V Brake.
        • Shifter Left: Microshift (Friction).
        • Shifter Right: Microshift (6 Speed).
        • Rear Derailleur: Shimano TZ50GS (Bracket Type).
        • Chain: KMC Z-33 102L.
        • Chainset: 24 x 34 x 42T 150mm.
        • Tyres Front: 24 X 1.90.
        • Tyres Rear: 24 X 1.90.
        • Rims: 24" Alloy 36 Hole Single wall.
        • Front Hub: Steel 36H, Nutted.
        • Rear Hub: Steel 36H, Nutted.
        • Saddle: MTB Type Black.
        • Seat Clamp: Steel bolt w/washer & Dome Nut.