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Discussion Starter #1
I'm debating on what sprocket setup I should get... I want my Sv to be quicker, snappier. So, I thought of doing 15/48. But I would like to hear "reviews" and experience of you guys with your setups, good/bad, wears chain quicker?, too much annoying high rev?, is there a big difference?

State your configuration and top speed in each gears that you get if possible!!

Thank you
 

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To be able to compare them, you need to divide the rear sprocket tooth count by the front sprocket tooth count...

SV650S is 15/44 = 2.933
SV650 is 15/45 = 3.000

I have 15/47 = 3.133 and I like it...

Sometimes, I swap the 15 tooth front sprocket with a 16/47 = 2.937 which is close to the SV650S

I had a 14/45 = 3.214 before and it was a little too much. I had to shift back and forth all the time. It pull great but it gets tiresome after a while.

A 15/48 is 3.200 You will really like the way the bike pulls foreward, but you may find you have to shift a lot too!!!

If you find that it is too much, you can swap to a 16 tooth front sprocket to go back to stock SV650 3.000 gearing.

Keep in mind that the SV650 is a V-Twin which has torque at lower RPM therefore is a waste if you only considering 9K rpms to 11K rpms...

You want to keep you power band at about 7.5K rpms to about 10.5K rpms. This is where the engine pulls the hardest!!!

Luis.
 

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A 15/48 is 3.200 You will really like the way the bike pulls foreward, but you may find you have to shift a lot too!!!

If you find that it is too much, you can swap to a 16 tooth front sprocket to go back to stock SV650 3.000 gearing.

Keep in mind that the SV650 is a V-Twin which has torque at lower RPM therefore is a waste if you only considering 9K rpms to 11K rpms...

You want to keep you power band at about 7.5K rpms to about 10.5K rpms. This is where the engine pulls the hardest!!!

Luis.

start adding teeth like that and you'll need a longer chain
 

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start adding teeth like that and you'll need a longer chain
True... When you replace the sprockets you ussualy want a new chain so time to ad a link or two... And go with aluminum rear sprocket on a 520 set up....

Anyway, when you are changing the front sprocket you only need to move the rear wheel about 1/8 of an inch or so...

Luis
 

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True... When you replace the sprockets you ussualy want a new chain so time to ad a link or two... And go with aluminum rear sprocket on a 520 set up....

Anyway, when you are changing the front sprocket you only need to move the rear wheel about 1/8 of an inch or so...

Luis
unless its a dedicated track bike, why even consider 520 or aluminum, bragging rights ? 525 steel is your lowest cost per mile
 

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Discussion Starter #6
After reading couple of stuff, I'm just gonna stick with 525, mainly because everybody says it last a lot longer...

thx for the inputs guys, keep them coming!!

SVXR650, did you notice a big decrease in top speed compared to the original ~220km/h?
 

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After reading couple of stuff, I'm just gonna stick with 525, mainly because everybody says it last a lot longer...

thx for the inputs guys, keep them coming!!

SVXR650, did you notice a big decrease in top speed compared to the original ~220km/h?
Do not worry about top speed... How often do you actually ride at top speed?

I have ridden my SV650 on 6th gear at red line. But soon you find yourself backing off because you do not want to burn the motor...

Besides, it is hell of fun to take off doing a wheelie into 3rd gear...

I have a friend with a CBR954RR and he does not know how to launch off a stop. From light to light, I smoke him so bad off the start, that he does not even give it a try. ...Then he passes me doing like 140mph. But acceleration wise, the SV650 has very good take off speed!!!

As far as the 525 chain lasting longer than the 520 chain is bogus. The chain will have a long life if you clean it/oil it regularly, (200-300 miles) have proper slack and is properly aliened.

I had 525 DID Pro Chain last me 6-7K miles because it was too tight...
Right now, I have 520 RK XW chain with over 14K hard miles. I do not commute, I only ride on weekends, canyons and track days.

If you get aluminum sprockets get the hard anodized. They are worth the money!!!

Luis.
 

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As far as the 525 chain lasting longer than the 520 chain is bogus. .
the difference isn't in chain life, it's in sprocket life

my experience is 35,000 miles before I wear out a oem 525 front sprocket, chain & rear sprockets are still showing no to little sign of wear
 

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I have been running 14/44 for a while now, and I like it. I top out at around 125 mph now, rather than the 130 to 135 with the stock 15/44 setup. I like the way it pulls and I actually find better gas mileage, probably because I am easier on the throttle now.

I do shift a lot more, and cruise in 5th on most roads, when 4th used to be my favorite gear.

I only have 5k miles or so on this chain and sprocket combo, so I can't comment on wear.
 

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15/50 / 520. With an R6 throttle... holy crap. Totally different bike.

Amazingly enough it's not too buzzy at high speed.
 

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15/50 / 520. With an R6 throttle... holy crap. Totally different bike.

Amazingly enough it's not too buzzy at high speed.


Hmmmm..... Is that because the bike just does not go high speed... :nana: Luis
 

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This is a lot of help for picking sprocket combo's. You can see what rpm's will equal what speeds, and the kind of life you can expect to get out of a chain.

http://gearingcommander.com/
 

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sounds like this should be a poll, eh?

eisen - 15/50? is that for stunting? must be why you got rid of the rear end, to do way past 12 wheelies.


and for the record, after a lot of himming and hawing(sp) i went with 14/45. my brother and his 636 were blowing by me when my top speed was 135, so whats the difference? now i've got some extra pop off the line, and he blows by me at 128 instead. and my gas mileage went from low 50s to high 40s.
 

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Discussion Starter #18
sounds like this should be a poll, eh?

eisen - 15/50? is that for stunting? must be why you got rid of the rear end, to do way past 12 wheelies.


and for the record, after a lot of himming and hawing(sp) i went with 14/45. my brother and his 636 were blowing by me when my top speed was 135, so whats the difference? now i've got some extra pop off the line, and he blows by me at 128 instead. and my gas mileage went from low 50s to high 40s.


wanted to make a poll but dindt have the option!!???
 

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Discussion Starter #19
and for the record, after a lot of himming and hawing(sp) i went with 14/45. my brother and his 636 were blowing by me when my top speed was 135, so whats the difference? now i've got some extra pop off the line, and he blows by me at 128 instead. and my gas mileage went from low 50s to high 40s.
yes thats what I thought also, since it alrdy doesnt has much top speed and is more of an "acceleration/quick" bike than a "top speed/fast" bike , mind as well excel/emphasize on the acceleration instead of worrying about top speed...
 

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I think it worked out to 112 links. It cut it to 114 (thinking +6 teeth should mean +6 links), and with the chain properly adjusted for tension, the rear wheel was almost all the way back in the adjustment grooves. I took two more links off and now its right in the middle of the adjustment range.

And it's not for stunting, specifically, though I do like an occasional wheelie. More for tons of drive in the first three gears, which is where I spend most of my time when riding. It feels great. Instant torque everywhere. :-D

If it gets too annoying, I can always go to a 16t front and end up with the equivalent of 15/47.
 
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