Bird Cage

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This bike is built by Serge Prinz -- Rollout 2007-07.

Frame Data

  • Seat challenge seat clone, 3mm aluminium, using rivets.
  • Tubing: 13x1.25(bought), 10x1 (bought), 8x1 (bought),8x 2.5(bought)
  • Weight: +-16kg

Everything is Tig welded

The pivot uses Askubal 10 mm (2)


  • Continental Sportcontact 26 x 1.6
  • Brakes Shimano V- brake M421
  • Derailleur front and rear Shimano Gs 200
  • Gearshifter Rapidfire Shimano LX

Some Weight Considerations

The frame itself weighs about 5kgs. The paint that was sprayed on was about 358gr, but about 150-200grs real weight difference. The other parts weigh 10kg!

More photos on [[1]]

Python near Waimes Belgium (Vennbahn Waimes-StVith).jpg
Python on Road RV6 near Givroulle, Wyompont Belgium.jpg