Custom ISP road frame

A couple of new, special features on this frame:

  • A round, integrated seatpost with a customised Thomson seathead featuring an internal wedge for fine tuning saddle height.
  • Fully internal cables, entering the toptube behind the stem and then running bare through guides brazed into the frame and bottom bracket shell.

Otherwise the mandate was round tubes and as light as possible. There is a series of photos showing the build sequence to see some of the steps involved.

Final painted weight is 1302g, plus around 100g for the ‘seatpost’.

Updated with a complete bike photo – weight is just over 13lbs as shown.

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