well i'm getting a p1 on saturday and i was wanted to see what is envolved in converted the rear sproket into a six speed instead of the single since i use the bike for longer rides the single gear will be hard and i cant afford to buy both

You could buy an internally geared hub and have it woven to your existing rim. That'd be the easiest way.

EDIT - well, maybe. What's the spacing on the P1's again?

i'm not sure i'll check it out it's an 05 frame incase any one knows

well the p1 comes with a removable derailleur hanger but anything involving a derailleur is going to need

1. rear cassette/freewheel
2. shifters
3. derailleur

personally i wouldnt get an internal hub as its prolly just cheaper and more efficient to go to your LBS and find a cassette/freewheel that'll pop onto your hub. the p1 has a rear wheel that comes with singlespeed but uses a regular cassette hub + spacers to achieve its SS. so remove the spacers pop on a cassette, screw in the derailleur, hook up your shifters and you're good to go. only problem is - its not cheap unless you got a bunch of spares laying around.

edit: 2005? hm - not to familiar with that one but i know 2006 has spacers and such on the rear wheel w/ a removable derailleur hanger.

i've not got those kinds of spares how much is that rougly going to cost?

hm

run of the mill cassette: $30-40
shifters: $50-60
derailleur: $50-70
cable housing + cables: $5-10
labor: $10-15

i'd def have a LBS do it though.

yeah this is above what i can do i'll take it down to a bike shop and see what they say but now i've got a rough guide of price i'll need to add labour costs but it looks expensive

If you're gonna blow that kind of money on it, why don't you just get a p2 to begin with? That way you have a stock bike with gears and a warranty.

Unless, of course, I'm missing something here.

because that's about 500 pounds stock right there alot more than the conversion

There are cheaper ways...

Snag an decent older mountain bike off craigslist for $30. Something with two flat tires and no handlebars or whatever. Swap everything over.
-or-
Watch for the parts on craigslist. You can get nice stuff for cheap if you're willing to wait a month or two.
-or-
Go to a bike co-op and dig through the parts bins.
-or-
Go to a few bike shops and barter some beer for the parts you need from the parts bin.