Bicycle Mechanics - Clamp on adaptor for bolt on down-tube shifters?

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robtown
04-28-07, 07:17 PM
I picked up some nice Cyclone 7000 parts but the downtube shifters are bolt on. Is there a clamp adaptor for 28.6mm downtube?

Thanks

stevesurf
04-28-07, 07:27 PM
Here ya go; I have these on my new Bianchi Ti Build; will they fit on yours?

Harris Cyclery (http://harriscyclery.net/itemdetails.cfm?ID=1737)

http://harriscyclery.net/merchant/370/images/large/FS1069.jpg
gary c
04-29-07, 08:01 AM
http://www.loosescrews.com/
I have bought many weird parts here that I have never been able to find anywhere else.

HillRider
04-29-07, 08:10 AM
Here ya go; I have these on my new Bianchi Ti Build; will they fit on yours?

Harris Cyclery (http://harriscyclery.net/itemdetails.cfm?ID=1737)

http://harriscyclery.net/merchant/370/images/large/FS1069.jpg

These are cable housing stops used for STI, Ergo or barcon shifters. They are not used with downtube shifters.

To the OP: I've never seen a clamp-on adapter that has standard design down tube mounting bosses and the clamp-on dt shifters I've seen all have a proprietary mounting boss so you can't just unscrew the shifters and substitute others. I hope Loose Screws can help you out.
top506
04-29-07, 09:19 AM
I have re-threaded Simplex bands to acecpt Shimano indexed downtube shifters. The bands lack the square boss, but the curved base against the downtube holds the shifters in place well enough with a little very careful tightening of the mounting screws.
I don't know if this will work with the Sun Tour gear, though.
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