|Rivoted Cable Stops||JBF|
Nov 6, 2003 9:33 PM
|Why does Colnago do this? Do they ever loosen up? Do any other manufacturers do this? Just curious.|
Nov 7, 2003 4:59 AM
|My new Argon 18 has them this way also. Have not had it long enough to know if they come loose.|
|easier to re-rivet that re-weld...||Spunout|
Nov 7, 2003 7:26 AM
|but I don't know why a weld would come loose in the first place.
Maybe butted aluminum tubing is too thin to weld, a cable stop would rip the tube if it was bumped. Or, welding weakens the tube, so better to rivet.
|Merlin used to...||PsyDoc|
Nov 7, 2003 10:59 AM
|...weld on the cable stops (located on the down tube). Some of the frame testing results showed this was the spot when the Merlin frames would fail, because the additional heat required to weld them on would create a weak spot. Merlin has since moved them to the headtube. The rear brake cable stops on the toptube are typically welded, but it's not a problem there as the weld is (a) on the thicker part of the DB tubing or (b) that part of the frame does not get stressed very much.|
Nov 7, 2003 1:58 PM
|I have a '98 Yeti ARC mtb with rivets holding on the cable stops. I've never had a problem with it. I don't know the reason behind it - I assume that it's related to compromising the tube's strength if it were belded or brazed.|
|carbon fiber tubes is a pretty good reason nm||DougSloan|
Nov 7, 2003 2:09 PM
|the "braze-- on" is also riveted...||C-40|
Nov 9, 2003 3:43 PM
|With a carbon fiber C-40, frame attachments must either be glued or fastened mechanically. The "braze-on" front derailleur hanger is also riveted to the frame. I've been riding C-40s for four seasons with no problems.
If a rivet does loosen, it's simple to drill it out and install a new one.