![]() A careful grinding of the lip of the rivnut should get it out. You can't drill it out because it will just spin. You wouldn't want to be sawing or grinding the head of rivet nuts off as its too easy to accidentally grind on the frame or mar the finish. My cheap ole Giant TCR has the nifty countersunk Allen head bolts which makes replacement of the FD bracket idiotproof. Not for the feint of heart since you are dealing with an $$$ piece of carbon fiber you are drilling into. This is one reason I don't like the front derailleur setup on C50s, as it uses a bracket riveted to the frame. The diameter of the bit must exactly match the original hole in the frame, or you will drill it oversize and are sh_t up the creek! Use a large enough tip that you don't have to spend so much heating and use an oxidizing flame. I have done this on bolt heads and a similar concept is used to remove bearing races and rolled boiler tubes from steam/mud drums. You can use the little hole in the center to start the bit dead center, but I recommend a center drill bit, which has a special cut to the flutes so the drill bit doesn't wander on flat surfaces.īut you need to be careful the drill bit diameter you use is correct! Get the info from Litespeed. Oxy Acet torch tips are made for removing bolt/rivet heads. Rivet nuts are similar to rivets and are usually removed by drilling out the center. Then with the proper tool install a new rivnut. The rivnut can be dumped out of the head tube by removing the fork. The only proper way to deal with this problem is to saw the top of the rivnut off so the rivnut drops into the frame. I sent an email last night at 11:00 PM and they phoned me and sent an email at 9:00 AM today. Mr.Gib wrote:Ok, thanks everyone for the tips.įirst, kudos to Litespeed. He/she will then install a new rivnut and explain and warn you that you should also apply antisieze/grease to the threads of your water bottle cage and only apply a very light torque to the bolts that hold the cage onto your bike. let the remains fall into the bottom bracket area and shake the debris out. The mostly likely option he/she will take is to drill out the rivnut. However it also his busiest time of the year due to orders of new frames for the upcoming spring/summer season.įax (519) 585 fix is and should be a simple fix for a frame builder. If you are seeking pro help (which is a very good option for such an expensive frame), is a local frame builder in the Greater Toronto Area. I have tried this before on a rivnut that was free spinning on a friend's bianchi steel frame, it worked fine. There is also special thread locking compounds (loctite) that when you apply it to a corner of a bolt/hole, the loctite will seep itself in and cure. This will provide the counter acting torque to finish unfastening the bolt. ![]() If you have the water bottle bolt 1/2 way you should be able to grab onto the very small head/flange of the rivnut with a pair of needle nose pliers.
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