Check this site out http://www.chainreactioncycles.com/ you'll find everything you need with really great prices...all those things that you need tyres,wheels etc will cost you somewhere around 800$+/-...imo the frame that you have doesn't worth these upgrades...if I were you I would buy a new bike(doesnt have to be 5k bike) that is worth upgrading later, fork brakes etc...
Just want to get rid of mechanic disc brakes and replace them with hydraulic ones... after some sort of downhill attempt I realized how crappy they are
I dont have any other choice but to prefer it ...(a good)FS bikes are ridiculously expensive...for now atleast I'm not willing to spend 3000euro+ on a bike...after all its just a hobby
Driving the R2,R1 class cars without traction control aint that fun(for me at least with pad dunno how easy it is with wheel)its kinda hard to prevent the car from power sliding through every corner (even when you do you're not going fast enough to win) which is fun the first few times but then it gets frustrating especially when the AI is almost flawless and grips in every corner like he's on freakin rails or something...
For me its kinda stupid not to use some of the assists when AI has all of them on...and if you look at it from the simulation side most race cars have TC,ABS etc so why not you too use it?