have a 2 stroke and would like to get a lil more speed

Will I still be able to reach speeds up to 35mph? I just cant see myself spending $160+ on a shift kit when thats how much the engine kit costs.

Needless to say, a shift kit will give you a higher top speed than with a single speed.

You get what you pay for.
If you want heaps better performance without spending any money.....?
 
Billy, first up, you really should have posted this in the 'Frame-Mounted Drive Trains' section, if it's a gearing problem, to get the most appropriate answers.

Very good advise...I would add that using the search function, you might have found your answer. Or a thread that is already started on the subject. I have moved the thread to the appropriate fourm.
 
Well what is heaps better performance?

Will the shift kit have me going an extra 10mph?

Can I get nearly the same performance by installing a Racing Carburetor or new Exhaust?

If I can get an extra 5mph with the Racing Carburetor at $50, that seems like a better value to me than 10mph with a Shift kit at $200
 
gday guys,

i have a 70cc star fire engine kit on a 26 inch bicycle. to my knowledge everthing is running great but i have a on board computer and it telling i only reaching up to 22 to 25 km's on full revs. i just can't seem to get anymore speed out of the bike.

anyone got any ideas on would could stop it going faster?
 
Noel, I meant all-round performance. Originally you said 'I think my main concern is being able to take off fairly quickly as well as go up steep hills.'

That indicates that you want more torque rather than speed, hence my recommendation of a shift kit.

Now you want more speed, so buy an expansion chamber and a smaller rear sprocket.
That will make a bigger difference than a carb change. Many people have a lot of tuning problems with after-market carbs.

Sure, the shift kit makes the bike faster, a good 10mph in my case on flat ground, but it has all the other benefits as gears. Your engine won't be constantly screaming as you ride down the road, the bike will be controllable at low speeds and it will pull up any hill if you set up the appropriate ratios.

If you want more power only, the best increase for money is an expansion chamber.

Have you searched and read the reviews on these products?
I suggest that you do that.
 
gday guys,
i have a 70cc star fire engine kit on a 26 inch bicycle. to my knowledge everthing is running great but i have a on board computer and it telling i only reaching up to 22 to 25 km's on full revs. i just can't seem to get anymore speed out of the bike.

It's not really appropriate to hijack the thread with a separate problem.
I suggest that you start a new thread in '2-Stroke Engines', outlining your problem.
When you do, describe your plug colour as well. It will tell the story, more than likely.


anyone got any ideas on would could stop it going faster?

This bit doesn't make sense to me.
 
gday guys,

i have a 70cc star fire engine kit on a 26 inch bicycle. to my knowledge everthing is running great but i have a on board computer and it telling i only reaching up to 22 to 25 km's on full revs. i just can't seem to get anymore speed out of the bike.

anyone got any ideas on would could stop it going faster?

Steve's suggestion is second best....SEARCH, read and search and read some more. You did well by trying to post to a thread that seemed to be related and for that I give you kudos.
 
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