Steve Leitgen wrote:
> In my various internet searches I came on information that the
> Stronglight 105 came as a double as well as a triple crank. The site
> also mentioned that the Campy as well as the Avocet triples were
> modified to take three rings.
>
> I'm taking that to mean the 105 wasn't modified to become a triple.
>
> Does anyone have a Stronglight 105 triple and is it easy (no major
> machine work) to modify my double to take three rings?
As long as you're satisfied with the 38T minimum ring size, you can simply use triple-length bolts and spacers to mount the third ring and a longer BB spindle to set the proper chainline.
Otherwise, Stronglight 100 (model 99 "next generation") rings have an additional drilling that can fit to a model 93/105 arm if the inner "ledge" is removed (like a track arm). Use this ring in the middle position, and mount a model 99/100 ring to the other set of holes using track chainring bolts and spacers. This will allow you to go down to a 28T ring in the inner position.
--
John "approved by the Cobmaster General" (john@os2.dhs.org)
Appleton WI USA