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Mafiabike Madmain 20 Complete BMX - Flat Black


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On delivery this bike requires some self-assembly. Full instructions are provided but should you be in any doubt SkateHut recommends that you consult a qualified bike technician or arrange to pick up your bike from one of our stores. Please note that in the majority of cases incorrect assembly is not covered under the manufacturer warranty.

Product Description


  • Frame: Hi Tensile with Top and Bottom HT Gussets
  • Forks: Hi Tensile Internally Threaded with CNC Alloy Compression Cap, Offset 30mm, Taper Blades with Peg Recess
  • Bars: Hi Tensile 29" x 9"
  • Stem: Forged Front Load Alloy
  • Cranks: 3-Piece 4130
  • BB: Sealed Mid
  • Headset: Sealed with CNC Head Tube with Provision for Gyro Tabs
  • Gearing: 25/9
  • Tyres: 20.4 x 2.25" Lagos Crawler
  • Rims: (F/R) Double Wall Extra Wide Alloy
  • Hubs: (F) Looseball Alloy, (R) Semi Sealed Cassette Alloy
  • Pedals: VP Plastic
  • Seat: Logo Stitched Padded 2-Piece Seat and Alloy Post
  • Clamp: Integrated Angle Cut
  • Brake: U-Brake
  • Grips: Aftermarket Hitmain


  • Top Tube: 20.5"
  • Chainstay: 13.2"
  • Head Tube: 75.2°
  • Weight: 15kg

The Madmain 20" takes Harry Main's personal geometry set-up from his aftermarket Hitmain parts, and packages them in a sick looking complete bike.

In his own words: "If I were to start riding again from scratch, the madmain would be my ideal entry level set-up!!" Integrated headset, 25/9 gearing, sealed mid BB, super short back end and nice high wide bars. In fact, Harry actually regularly rides a madmain complete bike in his home town of Liverpool.

In order to sign off on the madmain, Harry was involved in every tiny detail of the design from start to finish. He wanted to be proud to put his name on a product he hoped could inspire a generation to get involved in BMX.
The madmain line of completes sticks to Mafia's long running ethos as well as Harry Main's vision for BMX; providing great quality, long lasting bikes at affordable prices!
Please note: This bike is sold for off road use only.
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