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advise on changing sprockets

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Old 01-10-2005, 06:37 PM
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Default advise on changing sprockets

so i want to change my sprocket sizes. i want more low end and easier wheelies.

i either want to go one down on the front, or 2-3 up in the rear. is that going to be too much? i dont really care about my top end since i RARELY do over 110.

the bike is a sv650s. i called burchams and i stopped by ultimate cycles and they both have to order them.

question is, which one should i do? if i go up in the rear, wont i have to change my chain? i heard that going down to low in the front will cause more stress on the chain? should i stay away from that?

any advise? brands i should look for? ect.
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Old 01-10-2005, 06:39 PM
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Default Re: advise on changing sprockets

not sure but I think someone already ask about that. If you look at the old threads it should be there somewere.
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Old 01-10-2005, 06:43 PM
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Default Re: advise on changing sprockets

1 tooth down in the front is roughly 6-7 teeth in the back depending on your original sprocket sizes. 2-3 teeth on the rear sprocket you probably wont notice much difference.
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Old 01-10-2005, 07:05 PM
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Default Re: advise on changing sprockets

If you want more low end torque then go up teeth in the rear. And going up in teeth in the back or dropping teeth in the front is going to put more stress on the chain.

Go on ebay and buy a 520 conversion kit. Its usually 150 bucks for a 520 chain and a front and rear sprocket of your choice (in # of teeth that is).

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Old 01-10-2005, 07:37 PM
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Default Re: advise on changing sprockets

I went down 1 in the front and up 2 in back. Big difference in low end. I also swapped to a 520 conversion (Vortex rear, Sprocket Specialist front and DID gold X-ring chain). Good Luck
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Old 01-10-2005, 08:32 PM
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Default Re: advise on changing sprockets

Originally Posted by mnchvgs79
1 tooth down in the front is roughly 6-7 teeth in the back depending on your original sprocket sizes. 2-3 teeth on the rear sprocket you probably wont notice much difference.

what's your gearing now? 1 tooth down will not equate to 6-7 teeth up in the rear as most sprockets work in almost a 1 front to 3 rear ie 15 tooth front and 45 tooth rear is somewhat common and most stock sprocket sets are within a few teeth of that. Front or back shouldn't matter for stressing the chain if you only go one down front or 3 up rear. It becomes a small problem in the front when you go down 2 or more teeth as the radius the chain has to go around is soo much smaller. Only one tooth down in the front should give you nearly(70+ %) the same chain life as stock. With going up teeth in the rear you have to worry about the material of the sprocket as many rear sprockets are made out of pure aluminum which will wear much quicker than its steel counterpart. If you do go up in the rear instead of down in the front try and buy a kit or rear sprocket thats hardened or made out of something besides strictly aluminum just so it will last a little longer. You will notice a slight difference when riding as it was immediately recognizable when I went down one tooth in the front.
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Old 01-11-2005, 02:55 PM
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Default Re: advise on changing sprockets

we keep them in stock... it depends on the bike but general rule is -1 on the front is the same as +2 on the rear

it really isn't enough to matter, but going smaller on the front will cause more stress on the chain like shane said, and more stress on the crank shaft and crank case, don't let that alarm you its so minut, but it is there... also going smaller on the front sprocket will make your wheel base longer, effectively making it harder to wheelie, but again this isn't enough to matter and adjusting your chain or taking a link out will more than off set this... a larger rear sprocket will shorten your wheel base making it easier to wheelie technically, if your going +2 it will be close, you might be able to get by all the way forward in chain adjustment but you may need a new chain... also remember a front sprocket is 15-20$, a rear sprocket is 40-60$

all those factors other than price really aren't enough to matter one way or another unless like shane said your going down more than -2 or adding like +4 to the rear... i've gone -1 on some bikes and +2 on other bikes and couldn't tell much of a difference... if you need a new chain i'd do the 520 conversion like Mister said, but if not i'd just throw a 19 dollar front -1 sprocket on it and see how you like that, like i said we have them if you want to give me a call tomorrow
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Old 01-11-2005, 06:09 PM
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Default Re: advise on changing sprockets

Originally Posted by Del La Sol 1320
we keep them in stock... it depends on the bike but general rule is -1 on the front is the same as +2 on the rear

it really isn't enough to matter, but going smaller on the front will cause more stress on the chain like shane said, and more stress on the crank shaft and crank case, don't let that alarm you its so minut, but it is there... also going smaller on the front sprocket will make your wheel base longer, effectively making it harder to wheelie, but again this isn't enough to matter and adjusting your chain or taking a link out will more than off set this... a larger rear sprocket will shorten your wheel base making it easier to wheelie technically, if your going +2 it will be close, you might be able to get by all the way forward in chain adjustment but you may need a new chain... also remember a front sprocket is 15-20$, a rear sprocket is 40-60$

all those factors other than price really aren't enough to matter one way or another unless like shane said your going down more than -2 or adding like +4 to the rear... i've gone -1 on some bikes and +2 on other bikes and couldn't tell much of a difference... if you need a new chain i'd do the 520 conversion like Mister said, but if not i'd just throw a 19 dollar front -1 sprocket on it and see how you like that, like i said we have them if you want to give me a call tomorrow
awesome, could you send me your number? aim - str8intoconcrete
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Old 01-12-2005, 06:57 AM
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Default Re: advise on changing sprockets

the # here at work is (804) 737-7803, I have a +1 rear or a -1 front, i'd do the -1 front, its 19$... our adress is 501 East Nine Mile Road
Highland Springs, VA 23075
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Old 01-12-2005, 01:50 PM
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Default Re: advise on changing sprockets

Your gonna loath entering that store. There are just soooooo many nice bikes you have to pass before you reach Bret at the desk
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