I need to upgrade a crankset (22-32-42) on a 2003 Giant Iguana Disc. The BB is 68mm english and it has 113 spindle. Can someone please refer a crankset for this bike? I'm not even sure if I can switch it out myself depending on what tools I will need. The BB seems fine it is just my chain-wheels that have suffered many missing teeth and bending over the years.
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