Walrus Speedster

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  • @s.walrus think there would be a benefit in having a section for frame building on here? for resources etc....

  • This thread has had me researching and a friend has just offered me use of his kit at his workshop on Saturday mornings - I may be in need of said resources section ^ Love both the fixed and this one so far @s.walrus

  • cool! carbosteel

  • Bottom brackets with an slightly under-powered torch! The hearth is just a little open-front-and-top box of vermiculite,this reflects the heat and creates a hot place (it was this one, except I put the blacket thing underneath: bottom-of-page(ish) http://www.cupalloys.co.uk/brazing-ancillaries/index.asp). It really helped keep the BB hot and silver flowing, even on chilly winter evenings. The plates are also very useful for brazing over/near a wooden/mdf fixture, when you really don't want to set fire to the fixture. Haven't really used it since using Oxy-Maxigas.

  • That would be good!

  • Back-end is glued in. That wasn't stressful at all, oh no.
    Cable guides for rear brake and derailleur are on. I've made a pigs of taping the bars. And I found a bargain 7800 crankset on ebay:


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    • w-speedster.jpg
  • Total weight as it stands is pretty bang-on 7kg.
    Just Dura-Ace 7800 derailleurs, brakes, BB and Ultegra SPD pedals and chain to go.

  • Looking great! from my own experience with composites, I can only imagine how little stress it was putting it together :D

  • How was the carbon bonded to the steel? Have long been interested in a DIY Bastion sort of bike with stainless steel lugs and carbon tubing. Have zero experience with any form of frame building but keen to know if it is a useless project or if it has some legs?

  • Awesome.

  • From this:


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    • Speedster.jpg
  • To this:


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    • walrus-speedster-done.jpg
  • I know, saddle angle....
    I just got a but too excited about it actually being a single object.

  • West Systems 105/205 epoxy with 404 high density filler where it was gappy. It's okay to work with, and the filler powder lets you get the consistency you need/want so it doesn't run everywhere. I've sat on it, and it seems pretty stable - have yet to go for a test ride. Coldharbour is the expert on this. If I had a lathe and mill I'd be building a stainless/carbon homage to ALAN. Not sure if any OTS lug sets would be suitable... might have to have a look, seeing as I now have a spare 753 back-end and no project on the go

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Walrus Speedster

Posted by Avatar for s.walrus @s.walrus

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