Though I must admit that having
PrashanthChengi in your friendlist saves all the trouble of reading through them. Nonetheless, there's this Barnetts manual
http://www.gweep.net/~prefect/bike/barnetts/ and Sheldon Brown dude (
http://www.sheldonbrown.com). Of course there are easy videos available on youtube which you should definitely study before buying spare parts :P
Recently I bought Sunrace 8 speed 12T-32T cassette from decathlon as 800 bucks seemed pretty decent deal and now that I have been itching at lot to get hands to 12T cog for speeding up a bit. Hub on my wheel Quando 36H (where 36H is nothing but number of holes) is a freewheel thread type. Did not realize that I needed a freehub on my wheel, now this thing is lying idle on my table. I can buy btwin-K7 wheel in 2600 bucks from 10kya or cyclinghub.in which comes with freehub but then it will involve additional cost of getting promax discbrake compatible disc mounting on it as well. I have been searching through various sites to figure out if there is any provision of removing freehub threading and replace it with freehub even though it's stupidly illogical thing to do.
Yeah, Nipun was right. I have increased running cost of my bike way higher than I ever imagined. Why can't mind be happy with what we have on bikey instead of fiddling with upgrades and accessories?