Is this a shim or meant to be there?

[Mickeyspinn]

https://www.retrobike.co.uk/threads...-lite-warning-possible-spider-content.449308/
It's nearly complete now, just the bar tape and cables to do.
Will post pics when finished.

I'd spotted that already so main triangle is titanium and rear and fork are Reynolds 531?
What's it feel like to ride?

 

[ferrus]

No titanium. Reynolds 501 in Dyna Tech‘s 2055 tube sets

 

[Mickeyspinn]

No titanium. Reynolds 501 in Dyna Tech‘s 2055 tube sets

Ah ha...I must pay more attention

 

[3wheeler7]

DynaTechs came in lots of different tube sets, the DynaLite tourer was 2055 tube set, pretty low down the scale, good reading here:-

https://www.retrobike.co.uk/gallery...ileName=Raleigh+Dyna-Tech+Frames+brochure.pdf

 

[ferrus]

All use Reynolds tubing but I think the usual designations, 531, 753 etc are a bit spurious when applied to DynaTechs as they refer to definite tube-set specifications; butting, wall thickness etc, not just the metallurgy. Maybe that’s why Raleigh avoided mentioning much about equivalence (although they did once in a German Catalogue).

When my DynaTech Pro got wrecked after being run over, I decided to cut up some of the tubes to see how it was made… there didn’t seem to be any conventional butting as such, it was pretty much plain-gauge. IIRC the down tube was slightly thicker at one end, but there was no step just a gradual taper. Presumably the bonding process negates the need for thick butts as there’s no welding involved.