Dear Bruce:
No rings to sell, I'm afraid, but here's what I have been told about the Stronglight ring sizes. The 99 cranks are the touring cranks, with a very small (86mm?) bolt circle, allowing for a 28 tooth smallest ring. If 42 teeth is close to the smallest ring your arms will take, you don't have 99's. The other standard ring size for old Stronglights was 122mm, used on the 57, 93 and 105 model cranks. The smallest ring for these is 38 tooth, but the 42 is very common.
Both the 99 and 93/105 size rings could be had drilled, so you could have either size. "Modern" OT Stronglight cranks use the Shimano 130mm size, allowing a 39/38 tooth small ring, but these didn't come drilled. There may also have been a Stronglight model with the Campy 144mm bolt circle, just to really complicate matters.
The drilled 99 rings were reputed to be rather flexible. I've had no problem with the drilled rings on my 93. 38 tooth rings are rarer than the 40 or 42. If you are really lucky, you might find some black drilled rings!!
Harris Cyclery usually catalogs 122 mm Stronglight size rings, and occasionally 86 mm rings, but I understand these are undrilled. Good hunting. The Harris website also has lots of info on the different bolt patterns.
Tom Adams, Shrewsbury NJ
bruce thomson <masi3v4me@yahoo.com> wrote: CR Listers: I have been looking for a replacement chainring (or two) for my Stronglight crankset. It is the smaller, inner, 42t ring. I do not, however, recall the model. It is the one with the chainrings drilled out and I was told this was a model 99. Bruce
Bruce Thomson Spokane WA 99204 (509) 747 4314 Masi3v4me@yahoo.com
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