If you have a torque wrench then you can use it to tighten it to the manufacturers specifications. This is useful for protecting your hands in case they slip. For some models, this removes the ring; in some models, this pulls the cartridge body out. Find More Posts by joedab. With both the cranks removed, it is time to remove the bottom bracket. Grasp the bike frame and unscrew it from the cup. The time now is Italian bottom bracket Okay, I have been eyeing Italian frames, and love the heritage and the paintwork, but i finally found out what is different about their bottom brackets.
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It is interesting though that it is still in use. Spin the crank while holding the bike with one hand. Some adjustable cups have a hexagonal projection or wrench flats. You will need a socket wrench and a short extension to tighten the bolt from inside the bottom bracket, and a box wrench for the nut. The fact that they are screwed in so tightly also means that it will require a lot of force to unscrew them. Bottom Bracket Removal Tool As with most bike repairs, a number of specialist tools are needed.
Your local bike shop should be able to offer advice if you get stuck. If you like an Italian bike stick with it. This tool has three tabs and encircles the lockring, giving a very good grip. This will give you a more reliable service in the long term. I didn't torque the BB enough once, it loosened up while I was riding. Once you have loosened or removed the lockring, the adjustable cup will be free to turn.
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Italian bottom bracket problems: myth or fact - Bike Forums
Just be careful not to overheat the tool when grinding it, or you will weaken it! Remove this and slide the unit in drive side first. Once you are satisfied the crank extractor is firmly and accurately in place, turn clockwise on the drive side so that you start to feel the crank being pushed off the taper. Repeat this procedure on the right side and turn it clockwise to loosen the cup holding the bottom bracket in place. Before you complain, I've searched the forums, but I still need some clarification. The first home remedy demands that you have a high-quality bench vise. Bottom brackets are one of three places on a bicycle where I use a torque wrench.