Pardon me. I dont know if you people are closing the threads or deleting them. But if suggestions are welcome, then mine would be delete the old threads related with purchase of bikes. This may save lots of space on the server. Every person planning for a new bike will start a new thread. There would be hardly a few who would actually read the old threads for planning the purchase. Instead of deleting the ones which are a bit technical in nature, the data in it can be compiled and a new separate thread for the technical section can be created.
Well, this is only my suggestion. Things are upto u people.