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Discussion Starter #1
Anyone looked into an aftermarket set of wheels? Something lighter than stock?
I think reducing the rotating mass would be a very worthwhile mod.

What is the stock bolt pattern and size?
 

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jeezzzzzzzzzzzzzzz do you KNOW the PRICE of lightweight aftermarket wheels?

You can save about 2kg just by changing the tyres out from the IRC's to some thing like Pirelli's
 

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Discussion Starter #3 (Edited)
jeezzzzzzzzzzzzzzz do you KNOW the PRICE of lightweight aftermarket wheels?

You can save about 2kg just by changing the tyres out from the IRC's to some thing like Pirelli's
Yes I do. From what I have seen about $3k for a set.
And unless you can show me something different, 2kgs ~ 4.4lbs is not the type of weight savings you can expect to see per set. More realistically you can expect to save 1lbs ~ .5kgs per set.
 

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so..... you would be prepared to spend $3000 on some new wheels to lose 1lb of weight from the bike? .... this may be silly but if you diet and lose 5 lbs for free....?
 

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Discussion Starter #5
so..... you would be prepared to spend $3000 on some new wheels to lose 1lb of weight from the bike? .... this may be silly but if you diet and lose 5 lbs for free....?
It's more about reducing rotational mass then overall weight.

Does anyone know the stock wheel specs? weights?
 

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Yes I do. From what I have seen about $3k for a set.
And unless you can show me something different, 2kgs ~ 4.4lbs is not the type of weight savings you can expect to see per set. More realistically you can expect to save 1lbs ~ .5kgs per set.
Ok you know it all.... have fun finding the measurements you need... A friend did it here in Thailand on an Ninja250,, i cannot find the thread now.. Oh and i was wrong it was 1.5kilos saved. The IRC tyres are heavier than the sporty pirelli's
 

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Discussion Starter #8
I could do that, then I'll just look for lighter wheels for that....
 

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what's your objective for reducing rotational mass? tires and chain and sprockets are probably a good place to start as they need replacement. i just don't know about putting almost as much money into the bike as it's worth
 

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Discussion Starter #10 (Edited)
coming from an extensive autocross/ track day background with cars I know the benefits of reducing unsprung weight for cars; better handling and acceleration. would the same not apply to motorcycles?

I realize it may not be worth it on a cbr250 to dump the cost of the bike into a set of wheels. I'm just trying to build my knowledge base.

nice track bike btw....
 

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Some nice lightweight carbon or magnesium wheels would be cool.... but unless you're actually racing, probably not worth it. And the lighter wheels will have less gyro effect on a bike that some already feel is too "light" steering... I prefer INSTANT response, so the light feel is good by me, but your mileage may vary. Yes, the same benefits/drawbacks apply on 2 wheels as they do to 4... And with only ~28hp, every bit counts. But it may be cheaper just to get a new intake, new pipe, and high-compression head for low 30's hp. And premium gas fillups.
 

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coming from an extensive autocross/ track day background with cars I know the benefits of reducing unsprung weight for cars; better handling and acceleration. would the same not apply to motorcycles?

I realize it may not be worth it on a cbr250 to dump the cost of the bike into a set of wheels. I'm just trying to build my knowledge base.

nice track bike btw....
i gotcha, yeah something that expensive just might not be worth it on this bike. but the stock tires are pretty heavy, some sportier tires might be more bang for your buck
 
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