It's no trouble at all using supposedly rim brake rims with disc brakes, nothing will happen because of that. But your hubs has to be able to take a brake rotor and your fork/frame has to be able to take a brake caliper if you want to put disc brakes on your bike.
depends on the bike and the brakes. Go to www.parktool.com or www.sheldonbrown.com for more.
put my mum on the seat and grind
Yes there are kits out there where you can convert drums to disc
The sheer majority of them have brakes, which sorts that out. Fixies might not have brakes as such, but you can put backpressure on the pedals which will stop the bike eventually. Some BMX trick bikes haven't got brakes, but as long as they're not ridden downhill or in traffic that's not much of a problem.
Change the wheels with specil ski wheels i think its called ski bike.
Not unless it has disc brakes--a 29" wheel has a radius 1.5" larger than a 26" wheel, so cantilever brakes won't reach the rims. The question I have is, why would you want to do this?
I got it from halfords, put it together my self. Needed abit help with the Disc brakes. If your going to get it, Upgrade to CMD-6 brakes because these really do suck. Un reliable Constant tampering needed
axle mounted, yes.
A 20 inch tire.
Find a donor D100 that has P/S if that is possible. Disc brakes kits can be purchased. Click the link.
Disc brakes. Ask the auto parts store for OEM brake pads.