Building a Bike From Scratch

Hi, I was wondering how complicated it is to build a bike completely from scratch?
Unfortunately I'm a complete newbie to this so I have no idea :P What kind of price would you be looking at for all the parts excluding the frame, just for a basic build which I would upgrade again later? 
Also, I don't ACTUALLY know a full list of the stuff you would need :?, It seems like sometimes one thing comes with others, and other times you have to buy stuff separately, so what are the basic things that you would need?
Any answers to any of these questions would be great, sorry for the volley of hundreds of them :P


Also, I don't ACTUALLY know a full list of the stuff you would need :?, It seems like sometimes one thing comes with others, and other times you have to buy stuff separately, so what are the basic things that you would need?
Any answers to any of these questions would be great, sorry for the volley of hundreds of them :P
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Posts
Cost depends on what you want to put on it.....
what come with what? depends on what you want. Sorry not that simple.
Why build it and then upgrade. costing you more money 2 times.
then there is the tools.
have a read of parktools for info on fitting parts.
Parktools :?:SheldonBrown
juicy 3 (front) 50 CRC
beone stelis frame can't remmeber
mavic ceramic rims 15 quid pair LBS
xt/lx hubs 15 quid new LBS/10 quid new ebay
v8 pedals 10 ebay as new
supersplice forks free from mate
lx/xt drive train deals from ebay. not v expensive, mostly new
truvativ isoflow cranks 10 ebay
Continental explorer tyres 10 from mate
FSA BB 3 quid ebay
DMR loclons 16 quid LBS
braided gear and bak brake housing 10 quid set
+ a few good tools
so not tooo bad
did means that as an amateur i had quite a lot of niggly issues with compatibility/set up etc but that was all part of the lurning cerve I guess.
all in - a worthwhile excercise but only one to be embarked on if you have the time to hunt for good deals. Tell your LBS waht you're doing and just ask if they have any suitable old components laying around you can have a deal on...
might also be cool to put a note on the classifieds of this forum. Say what standard of parts you want and makte offer the forumites offers for their cast offs/spares
There is alot of just out there and you need to know what your looking at to see if its been abused. otherwise i would buy new, then it is way more expensive to build it yourself
saying that when the sellers know what they're talking about it works dandy. (I was sold a crankset as hollowtech II which turned out to be powerspline)