Bicycle Mechanics - Is a triple FD compatable with a double crankset?

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Barrettscv
01-17-10, 01:43 PM
I'm using some existing gear to finish of my commuter & light touring bike.

I've got a Sram S350 cyclocross double crankset with 38 & 46t chainrings that I will install on the bike, this will work well when I commute.

I may install a triple on this bike in the future. I'd like to install an IRD Alpina Triple Front derailleur. http://store.interlocracing.com/alfrde.html

Can I just adjust the stops to allow it to work with a double?

Michael

pacificaslim
01-17-10, 01:49 PM
I don't know about that particular derailleur, but I still have the "triple" tiagra front derailleur on my 'cross bike even though i've now switched to a sram rival compact double crankset. Works for me, with the original triple shifter even.
San Rensho
01-17-10, 01:51 PM
Probably, but its not optimal.

DMF
01-17-10, 02:20 PM
What shifters is it designed to work with? The site doesn't say.
Barrettscv
01-17-10, 02:29 PM
What shifters is it designed to work with? The site doesn't say.

According to the Harris website: http://sheldonbrown.com/harris/derailers-front.html

"The only currently available front derailer that is designed for mid-range ("compact road") triple chainwheels
and compatible with Shimano "road" (drop handlebar) STI shifter indexing".