's Forum Archives - Components

Archive Home >> Components(1 2 3 4 5 6 7 8 9 10 )

Does anybody make 36t chainrings compatible w/ Campy 10s ?(7 posts)

Does anybody make 36t chainrings compatible w/ Campy 10s ?PeterRider
Jun 22, 2003 5:09 PM
I would like something a bit lower than 39t, but higher than the usual 30t. Does anybody make something like that ? For example, coming with my Bike Friday w/ campy 10s I had 48t and 60t rings made by Specialites TA.

Thanks !

Road bike chainring bolt diameters:Alexx
Jun 23, 2003 4:06 AM
The problem with road rings is that, with a common bolt diameter of 130 mm BCD, you won't be able to find any ring smaller than 38 tooth. A 36 tooth ring would be just about exactly that for an outer diameter.
Touring bikes, OTOH, usually use a 110 bolt diameter, and 36 tooth should work there without a problem. Whether that would work with campy 10, I don't know...
Campy BCD.....Rusty Coggs
Jun 23, 2003 4:37 AM
is 135mm for the big and middle rings.Smallest chainring that fits it is 39 tooth.
What is the BCD on the Campy triple inner ring? (nm)TFerguson
Jun 23, 2003 6:01 AM
74mm (nm)Rob Sal
Jun 23, 2003 8:57 AM
OK, so what I want is 36t with 74mm BCD (triple inner ring)PeterRider
Jun 23, 2003 11:16 AM
sorry my initial message was not clear, this is to use as an inner ring.

Here's one source...TFerguson
Jun 23, 2003 12:33 PM

Though I may still be confused, I think you have a Campy triple that you want to use 36, 42, 52 teeth rings. (I assume that Campy normally has 30, 42, 52 like Shimano) I wouldn't think that it would have any problem shifting. Be sure that there is enough clearance between the new, bigger inner ring and the chain stay.