Seanus
Admin1
2007 - CBR1000RR
Posts: 2,218
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Post by Seanus on Feb 2, 2005 20:41:51 GMT 10
From Ian (yellowvtwin) This spreadsheet was originally for another Bike, RobMÂ has updated it with the gearing etc for the FireStorm Column P the reference point for the standard gearing RPM's/Speed in 6th gear and won't change. Thanks Ian.
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Post by vtrstunter on Feb 2, 2005 21:02:45 GMT 10
damn it..... i aint got excel program....
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Post by dangerous on Apr 3, 2005 15:42:18 GMT 10
hey ummmm....... thinking bout the smaler sproket on the frount, but was woundering how far out does it affect the speedo???
cheers DD
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Ashes
True Stormer
BMW R1200GS
Posts: 1,434
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Post by Ashes on Apr 3, 2005 16:12:40 GMT 10
Cant type, rushing out to get a 20 tooth front cog so I can out top a Busa
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Post by bluestorm03 on Apr 3, 2005 16:14:40 GMT 10
Cant type, rushing out to get a 20 tooth front cog so I can out top a Busa and a jet engine ;D ;D ;D
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Post by vtrbeefa on Apr 4, 2005 8:36:52 GMT 10
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Post by snarley on Apr 24, 2005 18:53:05 GMT 10
Just fitted a three tooth larger rear sprocket, will let u know how it goes next ride.
snarley
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Post by snarley on Jun 26, 2005 20:18:47 GMT 10
WOW...never new three teeth could make such a difference. Better acceleration, and pulls harder in top gear, pulls hard to 250kph, then i chickened out !! Best 50 bucks i ever spent.
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Post by vtrbeefa on Jun 26, 2005 21:01:16 GMT 10
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Post by dasweep on Aug 2, 2005 11:39:17 GMT 10
When replacing the front sprocket, you have to take that cover off right, the one with the clutch bleeder on it? Does that have oil behind it? Will i have to drain out all my oil?
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Thelodger
Past Master
Andy
2000 - Bleen
Posts: 3,565
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Post by Thelodger on Aug 2, 2005 12:03:09 GMT 10
When replacing the front sprocket, you have to take that cover off right, the one with the clutch bleeder on it? Does that have oil behind it? Will i have to drain out all my oil? Nope it has no oil behind it just an actuating rod that stays in the crankcase so just undo the bolts and change out your front sprocket.
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Post by dasweep on Aug 2, 2005 12:13:19 GMT 10
sweet, thanks lodger
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Post by veitchy on Oct 26, 2005 18:36:02 GMT 10
hey snarley,
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Post by veitchy on Oct 26, 2005 18:37:05 GMT 10
hey snarley, what are the trade offs ? there always seems to be a down side, if not why arent we all emptying our ash trays full of coin....
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Feb 18, 2006 19:19:22 GMT 10
Have ? for anyone, Have fitted 15 front and 43 rear, how much does speedo read out IE. when doing 60/80/100 what will i actually be doing??
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Post by noodlesvtr on Feb 19, 2006 9:40:02 GMT 10
Hey fathead, a mem had a recalibration box for sale for less than 100 delivered. If you check back through the posts you'll find someone has found a mathamatical formula fr calculating the percentage you'll be out with any given gearing combo. once you know this just take it away from the speed you speedo reads.
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Deleted
Deleted Member
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Post by Deleted on Feb 20, 2006 16:09:33 GMT 10
tar ;D
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Post by flipr1 on Mar 12, 2006 10:07:06 GMT 10
this is tops, i presume this will work for other bikes provided tyre size etc is the same?
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Post by falco on Mar 12, 2006 10:34:15 GMT 10
so who can tell me from experiance what is best, smaller front or larger rear sprocket?
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Post by 318curves on Mar 26, 2006 21:49:40 GMT 10
so who can tell me from experiance what is best, smaller front or larger rear sprocket? I first went down one on the front sproket. It increased pull through the gears. It did not seem to affect the top end tach reading. I then added going down 3 on the rear sproket and a Speedo Healer. It pulls much better. However, it makes the bike viberate more. Like a Harley Sportster or Shovelhead engine Harley. But, it is not uncomfortable and nothing has rattled loose or fell off (common problem for old Harley's). I really like the idea of correcting the speedometer. It works. My 2001 Superhawk runs 4,000 RPM at 60 MPH in 6th. gear. That could be thought of as to high for the good of the motor as you run up to redline. However, I don't think it is a problem for the bike. And, on my roads, 60 MPH is a common speed limit. So, it is easier for me (in all gears and speeds) to watch the tach and not the speedometer. Finally, 1 tooth down on the front is probably enough. But, who wants just "enough"?
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Post by rezinate on Apr 26, 2006 11:29:02 GMT 10
Im getting mixed messages about sprockets, teeth, and chain length etc.
From what i can gather, the Firestorm regularly uses 16 tooth on the front, 41 on the back, correct? If i deviate from this, will the chain still fit? Can I just buy a smaller front sprocket, or do i also have to buy a bigger rear sprocket or something to get it to match?
right now i dont really care - Ive tried 5 diferent shops (MCA, Action, Close, Alexandria and Silverwater wreckers) and NONE of them have any fckn sprockets set available, and Action have told me a 5 week wait (none of the other stores can tell me a timeframe at all).....so i just want a friggin set that will work!!!! (keeping in mind its my first time to change the chain and i know bugger all about it). But if I can safely ask for other sizes, then i have a much greater chance of getting my bike back on the road within a month.
i HAVE ordered a set from MCA (who will try n get it on from another store), but if its not here by saturday, Ill drive to Melbourne if need be.....!
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Post by vtrraider on Apr 26, 2006 11:50:11 GMT 10
OK..... the standard front sprocket size is 16 tooth. Go down to a 15 tooth. You can do this as a straight swap & use the standard chain. I ran a 15/43 set-up using the standard size chain (just). In this configuration, the axel was at its furthermost forward position! Try www.mcas.com.au/articles.php?aid=16 for a sprocket. Last time they had 'em in stock with different sizes... No special tools are needed to change the sprocket, unless you have to change the chain. Then you will need a link breaking tool!
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Post by Sharpest1 on Apr 26, 2006 14:38:33 GMT 10
I'm sure The Chain Gang could get you a set much faster. Only takes a couple of days from Qld. www.chaingang.com.au/Best thing is give them a call.
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Deleted
Deleted Member
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Post by Deleted on Apr 26, 2006 17:15:35 GMT 10
Just to add if i may!
You should change the sprockets "both" and the chain as a set!
IE. Don't use an old chain with new sprockets...change all three. If your not happy with the gearing you can change while every-things still new!
Clear as mud? ;D
Standard gearing is: 16-41 Replaced set with 16-43...good allround for trips and city. +2teeth Then tried 15-43...great for city..not to good on the hwy.+5teeth Would settle for +3 teeth next time
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Post by rezinate on Apr 26, 2006 20:11:03 GMT 10
thanx 4 the help guyz.
yeah, i am changing the chain as well, except Ive already bought it...a regina 530 zr chain or something. Ive already tried MCAS, theyre the ones trying to order it from another store (cept they cant tell me how long that will take). At least its cheap - they quoted me $95 for the set.
But the one area im getting v confused about is the sizing (i really havent found much info on changing the chain) and matching it with the chain.....eg, Ive heard u need to go up or down an even number of chain links, so only certain sprocket combinations will work. Also, one shop wouldnt sell me sprockets until i could tell em the size of my chain (but then couldnt find them despite their computer saying they have stock left).
so then, can i safely buy whatever sprockies i can get my hands on and use them? or should i b safe and stick to the standard sizing?
btw, the chain gang looks like it costs $115 to $125 just for the rear sprocket (it has no mention of front or back ones anywhere though, so i could be wrong), so Im gunna stick with the $50 one from MCAs (but thanx anyway!).
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Deleted
Deleted Member
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Post by Deleted on Apr 26, 2006 21:47:13 GMT 10
thanx 4 the help guyz. yeah, i am changing the chain as well, except Ive already bought it...a regina 530 zr chain or something. Ive already tried MCAS, theyre the ones trying to order it from another store (cept they cant tell me how long that will take). At least its cheap - they quoted me $95 for the set. But the one area im getting v confused about is the sizing (i really havent found much info on changing the chain) and matching it with the chain.....eg, Ive heard u need to go up or down an even number of chain links, so only certain sprocket combinations will work. Also, one shop wouldnt sell me sprockets until i could tell em the size of my chain (but then couldnt find them despite their computer saying they have stock left). so then, can i safely buy whatever sprockies i can get my hands on and use them? or should i b safe and stick to the standard sizing? btw, the chain gang looks like it costs $115 to $125 just for the rear sprocket (it has no mention of front or back ones anywhere though, so i could be wrong), so Im gunna stick with the $50 one from MCAs (but thanx anyway!). Dude, Use the 530 chain you just bought...will need to cut to length after sprocket fitting. Standard size sprockets are: 16 front 41 rear Some/most go up 2 teeth on the rear=43 teeth.. if after fitting that gearing it still doesn't rip your arms out of there sockets....then go down one on the front to a 15...chain will still fit because your subtracting one tooth. (front sprockets are cheaper to replace) Stick with genuine sprockets they fit 530 chains. Hope this helps!
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Post by vtrraider on Apr 27, 2006 7:13:10 GMT 10
Actually, I'd go the other way first Fathead! Its cheaper & easier to change the front. 1 down on the front is a similar effect to +2 - 3 on the back! If your not happy & still need more grunt, start adding teeth to the back! The rear adjustments are a finer effect!
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Apr 27, 2006 20:21:48 GMT 10
Actually, I'd go the other way first Fathead! Its cheaper & easier to change the front. 1 down on the front is a similar effect to +2 - 3 on the back! If your not happy & still need more grunt, start adding teeth to the back! The rear adjustments are a finer effect! Mono, Agreed,down one on the front = about +2.7?? on the rear. I think that Rezinate would be happy with +2 or +3 0n the rear as a good all round gearing. I tried both 15 front with 43 rear and found that around town its great,but on the hwy its way to low gearing.... i would look at 16 front and 44 rear...same as dropping one on the front without the extra wear on the chain guide on the swing-arm. Either way after choosing the sprockets...then cut the chain...not before Gordon
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Post by gavgav84 on May 2, 2006 20:47:14 GMT 10
any way to findout whats on the front without taking the bike apart
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on May 2, 2006 21:07:01 GMT 10
not sure if you can see the sprocket with the cover on??bike not here to look at to tell you. But you only need to remove the cover "slave cylinder" 2.5 mins with a 8mm socket. Watch your fingy's
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