I have sent e-mail to still existing Bontekoe brand in Den Haag to gain some details about this frame and received short but clear message:
The frame is at least 60 years old, it was built by my grandfather. It's an ovalframe.
Greetings Ger Bontekoe. It is needles to say that this frame is super rare and shoul be part of valuable collection.
Cycles Bontekoe is Dutch bike brand based in Den Haag. Track frame set built on Reynolds 531 tubes / Nervex lugs, equiped with Cinelli track stem and drop bars, Campagnolo cotter pins bottom bracket spindle (changed for Campagnolo Record spindle 110mm) and rare Marque Deposee headset.Campagnolo Record Pista hubs - rear Campagnolo lock ring - new no name steel cog 16t, front Mavic rim - Wolberr tyre and rear Nisi tubular rim - Semperit tyre. Since the frame has come without saddle and seat post I have equiped it with NOS Cinelli Unicanitor sadlle and NOS Campagnolo Nuovo Record seat post. Bar tape is in Dutch colors - Benotto.
If you refer to my FLICKR gallery, you can see that frame was completely faded and bit rusted. It took me an entire day to bring it to finish you can see. It's complete Chromed. Frame was kept for years in the attic until the house was due to demolishing so the owner of the house discovered this together with other bicycles. It is ever since in my ownership and I trully love this piece.
Searching internet for relevant details about Bontekoe I only get few references. There's one similar track frame 1955 Collection: Peter Ravensbergen. I can not describe in words how beautiful this bike is but review the gallery and jugde yourself. Time has left its mark on the pipes so please expect some rusted parts all over the frame.
It is currently up for sell.
• Full chromed frame set, Reynolds 531 steel tubing
• Frame measurement Seat Tube – 54cm, Top Tube - 56cm
• Mavic and Nisi alloy tubular rims
• Campagnolo Record Pista Hubs
• Campagnolo Nuovo Record seat post NOS
• Campagnolo Record Pista crank set - Gipiemme 48t chain ring
• Campagnolo Record Bottom bracket
• Cinelli Pista Handlebars
• Cinelli Pista stem 100mm
• Cinelli Unicanitor Saddle
Chain is stamped as -W- Germany