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  • CONCEPT Concept Thunderbolt Single Speed 18" Wheel Boys Bicycle

Concept Thunderbolt Single Speed 18" Wheel Boys Bicycle

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Concept Thunderbolt Single Speed18"Wheel Boys Bicycle

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Concept Thunderbolt Single Speed 18" 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.
  • 18" Wheels.
  • Junior non-slip pedals prevent feet slipping off.
  • 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: 18" Freestyle BMX Steel frame.
  • Fork: Hi-Tensile Steel 18" Unicrown BMX fork.
  • Headset: Steel 8 pieces.
  • B.B Set: 1 piece BMX Type.
  • Handlebar: Upswept ATB style bars.
  • Stem: Steel 22.2mm.
  • Grips: PVC BMX Type.
  • Front Brake: Steel V Brake.
  • Rear Brake: Steel V Brake.
  • Chain: 1/2" x 1/8" x 82L.
  • Chainset: Steel 1/2" x 1/8" x 36T.
  • Tyres Front: 18" x 1.75.
  • Tyres Rear: 18" x 1.75.
  • Rims: Steel 14G X 36H.
  • Front Hub: Steel 36H. .
  • Rear Hub: Steel 36H.
  • Saddle: BMX Type Black.
  • Seat Clamp: Bolt with domed nut.
kids bike
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