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-   -   Higher gearing for the SV (http://forums.sv650.org/showthread.php?t=148893)

ShadFX 25-03-10 12:46 PM

Higher gearing for the SV
 
Hi all

I do mostly dual carriageway / motorway miles on my way in to work (15 / 16 miles out of the 20) and was looking at gearing the SV up slightly (just so I can sit at about 5K RMP at 75 mph) - but im worried if I pop the front sprocket up a tooth and the rear sprocket down a tooth (equivelent to downing 4 teeth at the rear if i read the other posts right..) that it will ruin the way the bike handles.....

Any ideas or has anyone actually done this?

Thanks

yorkie_chris 25-03-10 12:48 PM

Re: Higher gearing for the SV
 
I've had a brief go on Dizzyblondes bike, that's got a tooth up on the front. It's alright just not going to set your head on fire coming out of slow corners.

ShadFX 25-03-10 12:49 PM

Re: Higher gearing for the SV
 
Chris - do you know what kinda RPM the bike sits at at around 70 MPH?

yorkie_chris 25-03-10 12:55 PM

Re: Higher gearing for the SV
 
Dunno, have a look on gearing commander and play around.

I went opposite way on mine, added 3 teeth to rear, sat at 9k rpm on motorway. It would still do 135 indicated and was loads better than stock around twisties.


Gearing commander reckons you're doing 4999rpm at 70 with stock S gearing, with 16/43 you'd be doing 4580 rpm.

dizzyblonde 25-03-10 01:45 PM

Re: Higher gearing for the SV
 
if its faired go for one tooth up on front and the standard on the rear.

I shall just look at my specifics...won't be a mo.


ok 44 rear. 16 front.

order a 1998-1999 front sprocket for a GSX-R 750...info from previous owner.


at 90 mph you get approx 6k revs. HTH

Any more info, I'd be happy to oblige, after all most go the opposite way and just assume how things behave.

Stu 25-03-10 01:52 PM

Re: Higher gearing for the SV
 
I've got 16/44.
It's fine for what you want

ShadFX 25-03-10 02:03 PM

Re: Higher gearing for the SV
 
Thanks for all the info guys :) They dont actually need doing yet and its more of an annoyance than anything.. Will jot down the info and make sure I tuck it away for when I need it :) Thanks!

yorkie_chris 25-03-10 02:05 PM

Re: Higher gearing for the SV
 
Quote:

Originally Posted by dizzyblonde (Post 2223980)
order a 1998-1999 front sprocket for a GSX-R 750...info from previous owner.

B and C express do sprockets if you ask for "an SV650 one, but with x amount of teeth".

embee 25-03-10 02:12 PM

Re: Higher gearing for the SV
 
I have 16/44 (+1 g/box and std rear) on my curvey S. Standard length chain still fits.

It suits my riding style, prefer the more relaxed feel, and I don't keep looking for 7th gear. Don't expect any significant difference in economy.

dizzyblonde 25-03-10 02:31 PM

Re: Higher gearing for the SV
 
Quote:

Originally Posted by yorkie_chris (Post 2224005)
B and C express do sprockets if you ask for "an SV650 one, but with x amount of teeth".

Just going on whats on my bike, but its so good on chains and sprockets I can hardly say I'll be needing to know where to get em....for agggggeeeees. Still wondering when I'll be adjusting the chain for the third time in three years :-)

I notice fuel efficiency more on serious long distance riding up and down the motorway. As I have two bikes to compare, I notice a couple of quid or three difference. Although I suppose it also goes on a persons riding style too.


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