Is a bigger cc sportsbike necessarily better than the smaller one ?

Im just wondering for those any of you who are experienced in owning bigger cc bikes. Are they more enjoyable to ride than the ones with smaller cc ?

What is the best 2 stroke oil to use on my 1975 Honda MT 250 oil injected 2 stroke bike?

I have a 1975 Honda MT 250 piston port 2 stroke oil injected engine. I just out a new top end and rejeted it properly, but keep in mind I have been using redline synthetic oil all sport 2 stroke oil by redline. But I think it could be the reason it seized up on the top end twice in the past because I swear by synthetic oil like redline all sport all purpose 2 stroke oil. Can someone be kind enough to explain and recommend the proper or best 2 cycle oil for my 1975 Honda 2 stroke with oil injection? And yes I am still in the process of breaking in the top end I only put less then 7 miles on her since rebuild last year. I just want to know the appropriate 2 cycle oil for my honda mt250?

Is a baja dirt runner 150cc a slow bike?

so I got this bike from my good friend. It was a baja dr150 dirtbike, so I went to school to brag that I have a new DIRTBIKE. My friends who are DIRTBIKE heads said they are slow

You are already running 11.3:1 compression, do the math.

How are you going to fab a 1 into 4 intake manifold? 4 into one exhaust collector? Know how to sync 4 carbs in a boosted application. What is your plan to plumb the oiling?

How many years of welding experience do you have? Know how to mitre and bend exhaust tubing? Know how to make an exhaust manifold? Know how to manage ingit ion timing in a boosted i4?

Have a ton of research and planning to do.

Emblem on front or back of motorcycle fender?

I have what I was told was a 1955 harley davidson model k front fender. After looking at pics online I think it might be a 57 sportster only because it doesnt have that little flip but the previous owner was sure it was a model k. Is this possible? And which side of the fender is the front or back, there is a small hole at the very bottom middle like for an emblem or trim and a small hole on one side of the suspension indentation

you mean top speed or acceleration? or general?
for acceleration go down a gear, top speed go up a gear, in general well no replacement for displacement .
But how much faster you wana go? got an fz6 which got the r6 engine and 0- 60 in first gear gotta hold on for dear life, 0-120 in about 10 seconds, top speed hit so far 145ish ( ran out of road ) sooo how fast you wanna go?