Bike mods

I was just wondering what kind of mods you could do to: 1) a street bike running on pump gas and 2) a 600cc engine running on 100 octane gas with a 2cm diameter restrictor plate.

The mods I have thought of for 1 are:
better flowing intake
better flowing exhaust/mufflers + tubing
better heads (+port/polish if not already done)
biger valves
better camshaft
stiffer valve springs
lighter pistons + con rods
lighter driveshaft
adjustable cam gears
stiffer front/rear springs
wider tires
lighter body work
individual throttle bodies

And for 2):
higher compression
better heads
port/polish
free flowing intake/exhaust
lighter pistons, con rods, driveshaft
bigger valves
stiffer springs
better camshaft
adjustable cam gears

If there's anything else someone thinks of please tell me

ride it...

that's not exactly a modification, i know riding it will give some experience and improve my riding but if I have a bike and want to get a little more punch riding it wont make it more powerful or handle better

Ride it.

riding the bike is the best thing you could do to get more speed and get it to handle better. Hands down, your best bet. Want to get even more outof it? Take the MSF course and go to a track day class.

learn to hang off (ride it seemed repetitive at this point :D).

Wow, no gearheads in the group huh? Some people modify their rides because they like to wrench and personalize the bike/car to their own tastes. Believe it or not, bikes can be made better than they arrived from the factory. Will my 140hp bike with Racetech/Works suspension be any faster than a stocker down a twisty road, depends on the pilots. But with equal riders aboard my bike is one bad MF'r compared to a stocker. I see where you guys are coming from. My friend treats his bikes like appliances and never changes a thing. Some of us just can't do that.

Now, to the question at hand. For a sub 750cc bike, I'd focus on suspension upgrades first. Braided lines, aftermarket shock and fork internals, etc...(and yes, a track school can't hurt) I'd keep to a pipe and jet kit as far as performance mods go. If you want more power, buy a bigger bike. Internal engine mods are expensive. CCs is the answer. I've gone the route of pistons, headwork, cams, etc on my bike and I am VERY happy with the results. But I would never dump that kind of money or effort into a sub liter engine.

I just think it pays to be a better rider first, i.e. hanging off, to see where personal skills lies with the bike. When the rider is pushing that much harder, then one would begin to see where mods are needed. For example, in my bike, it definitely works on the front end and brakes and a little bit of power up top. But in a set of twisties, I seldom ever take the stocker to its limits for many knowns and unknown factors. Would I appreciate better turn-in ability like the 600s? No doubt, but only because I've began to know the difference comparatively.

So I think when the guys said: "ride it" is because we have very little clue whether the poster is seasoned rider or newb. It would seem superfluous to advise mods on already fast bikes if the guy is a newbie.

And of course, as you mentioned there's art of personalizing, it makes sense but still redundant if you can't use the power (speaking generally), but then again we have literbikes on the street.

Sticking back to topic: most mods I'd do in a bike would be suspensions and suspension tuning specific to rider, exhaust, and fender eliminator, common and simple.

And to your point, if I had to do it all over again, I would do the suspension mods first. These changes can help make you a better rider, horsepower cannot. I know a 60yr old guy that'll woop my ass down a twisty road on his sv650 (or anything else for that matter). Experience rules.

i'm all for mods but i don't think my skill level will out do my bikes level.

with all the money spent on mods i could buy a better bike.

i've always stuck with the standard mods like exhaust, filter and jets.
when my suspension needed work, i had it rebuilt with all the good shit instead of paying for Ohlins replacements.

chances are if you love the bike and its look then you'll want to keep it and make it the best it can be.

but for me i'll just trade up