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Shipping Included

 Please note: This bike will arrive partially assembled and therefore some assembly will be required

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Your estimated delivery time will be 2 business days (excluding weekends and bank holidays) from the time of order. Postcode Restrictions may apply. Find out more in the Delivery & Returns Tab below.


The Sonic Boom is a bike designed for young riders shedding their stabilisers, with BMX style handlebars and a Y-frame (suitable for ages 5-7 approximately). With an inside leg of 18-22" this junior cycle is easy to ride with a single speed freewheel and children's brakes front and rear with adjustable reach brake levers. A smoked chain guard is designed to keep legs and trousers clean and protected from the chain, whilst not covering the chainstay in case add-on stabilisers are still required (sold separately).


  • BMX style handlebars
  • Inside leg of 18-22"
  • Single speed freewheel
  • Children's brakes front and rear with adjustable reach brake levers
  • Smoked chain guard is designed to keep legs and trousers clean
  • Frame: Steel Y
  • Brakes: Caliper
  • Handlebars: Junior BMX Style Bars
  • Rims: Steel
  • Tyres: 16" Pavement Tyres
  • Saddle: Junior Padded
  • Seat Post: Steel

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