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RE: Another sprocket question - 2/23/2006 7:31:28 PM

isolated1523

Posts: 810
Joined: 11/7/2005
From: Richmond, KY
Status: offline

Anyone else ran an RK chain?? 2000 miles seems pretty shitty to me.....

-Adam

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Post #: 16

RE: Another sprocket question - 2/24/2006 11:32:22 AM

drag the knee

Posts: 254
Joined: 1/12/2006
Status: offline

ok, i've just ordered my Vortex front sprocket off of www.vortexracing.com they're on a back order for a couple days but thats fine, am i going to have any problems when i get to the alignment on the back wheel?

edit: oh ya and where can i get a good rear stand? and how much do they run?

< Message edited by drag the knee -- 2/24/2006 11:34:28 AM >

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Vortex 520 conversion -1 Front sprocket +2 rear Galfer steel braided brake lines Shogun Frame Sliders Jardine slip on hotbodies race fairings

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Post #: 17

RE: Another sprocket question - 2/24/2006 11:40:27 AM

chainstretcher

Posts: 4153
Joined: 11/5/2004
Status: online

I ran the 520 RK chain on my 1000RR for 5000 miles with no problems. Chain and sprockets prolly had about 2-3K miles left in 'em. Went back to stock chain and sprockets for gas mileage. Sounds lame but geez I was only getting about 100 - 120 miles per tank. Had to fill up 3 times a week commuting to work.

I'm keeping the 520 -1/+1 combo for when I go to the track but running stock gearing on the street.

There's some pics on this thread of the sprockets: RK 520 chain results.

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Post #: 18

RE: Another sprocket question - 2/24/2006 8:16:03 PM

SquireSCA

Posts: 417
Joined: 8/7/2005
Status: offline

Chainstretcher,

What is the best gearing selection for an '05 F4i for street use, in your opinion?

I tried stock, tried -1/+1 and am now on -1/+2 and while I notice a difference in power and snap, overall, is the bike actually faster?

I mean, my top speed is now down to 135mph tops, and while I might have more snap when I hit the throttle, I am having to shift sooner and more often, so at some point, does it become counter-productive?

I reprogrammed the speedohealer, and in 6th, the RPM matches the mph. 70mph is about 6900rpm.

Thoughts?

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Post #: 19

RE: Another sprocket question - 2/25/2006 8:16:40 PM

cbr6

Posts: 15
Joined: 7/3/2005
Status: offline

I'm trying to install my 48 tooth rear sprocket. I have a 15 in front. Trying to do the -1/+2 sprockt change with the stock chain. It seems like the stock chain is too short? I cant get it on??? Please advise...Thanks.

(in reply to MS600F4i)

Post #: 20

RE: Another sprocket question - 2/25/2006 8:36:24 PM

cjbettis

Posts: 1098
Joined: 10/29/2005
Status: offline

quote:

ORIGINAL: Tahoe SC

-1 will wear the chain faster than +3 in the rear. -2 will wear the chain super fast.
as far as the 520...get a really good chain, like the DID and you will be ok with wear.

i gots the 520 in my garage...waiting for the current set up of -1 to croak on me but DID is so bomb, the chain just won't quit mang!
once it does though...it's all about the +3 and 520 baby!

if concerned about wear then the 520 will wear faster as well...I have a -1 and -2...on my stock 525 and have 2500 miles on and no signs of needing a new chain anytime soon...

Don Collins summed it up pretty well....oh yeah...you could have both a -1 and -2 for only $44...plus have a 15 min mod time depending on riding you are going to do....

if stunting totally go up in the back...if track ride and really need fractions of a second go 520...but if just want a cheap mod for the street and to make a lot more torquey -1 or -2....no matter which way will love it!!

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Post #: 21

RE: Another sprocket question - 2/25/2006 9:20:25 PM

SquireSCA

Posts: 417
Joined: 8/7/2005
Status: offline

quote:

ORIGINAL: cbr6

I'm trying to install my 48 tooth rear sprocket. I have a 15 in front. Trying to do the -1/+2 sprockt change with the stock chain. It seems like the stock chain is too short? I cant get it on??? Please advise...Thanks.

-1/+2 here, and I used the stock chain. Was easy, no problem. You have an F4i or an RR?

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Post #: 22

RE: Another sprocket question - 2/25/2006 9:30:16 PM

cjbettis

Posts: 1098
Joined: 10/29/2005
Status: offline

quote:

ORIGINAL: SquireSCA

quote:

ORIGINAL: cbr6

I'm trying to install my 48 tooth rear sprocket. I have a 15 in front. Trying to do the -1/+2 sprockt change with the stock chain. It seems like the stock chain is too short? I cant get it on??? Please advise...Thanks.

-1/+2 here, and I used the stock chain. Was easy, no problem. You have an F4i or an RR?

he has:

05 CBR 600F4i
Jardine RT-1 slip on
tail conversion
custom undertail

**Coming Soon**
Vortex 15 tooth sprocket

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Post #: 23

RE: Another sprocket question - 2/27/2006 10:37:15 AM

Tahoe SC

Posts: 5842
Joined: 8/24/2005
Status: offline

there's this site that tells you what your wheel base is with different combination of teef. you want as close to stock gearing as possible to keep handling the same, but it doesn't really matter that much.

my DID is finally going to retire....this weekend...after 14,000 hard miles...she's earned the right for it...
i checked mah tension, way off, tightened it...rode to church...hard on the throttle but a few times...one weak semi-wheelie attempt...came home...rode a total of like 10 miles...and the chain needed adjusting again...she was a good girl...

YEA BABY, TIME FOR MAH NEW SET in the garage! woohoo!

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Post #: 24

RE: Another sprocket question - 2/27/2006 3:04:36 PM

cjbettis

Posts: 1098
Joined: 10/29/2005
Status: offline

quote:

ORIGINAL: SquireSCA

Well, today I went out for a long ride with the -1/+2 gearing. Gas mileage blows, but awesome power down low. In 6th, the RPM is almost exactly the speed. 70mph was 6900rpm, and this is after correcting things with a speedo.

So I am betting that my top speed is 135mph now, tops. Maybe I could redline with the lowered gearing, meaning a theoretical 140mph top speed if I had no head wind.

I was at 125mph and about 12,500 on the tach and had to back down as I was running out of road. But, max power is around 12,500 rpm and only being at 125mph at max power in top gear is kinda low.

I like the extra power, but I am undecided if I like it overall. I mean, there are times when cruising on the highway at 7500rpm to keep up with traffic is annoying, and it does bother me to lose 20mph on top. I might be better doing a 520 conversion with stock gear ratios and learning to just keep the revs up.

exactly why I suggest only modding the front...if I know I am gonna be out running hard with some other guys stock (15 min mod)...or if running with other friends who are cruisers (-2) or in the hills here....rear end is a major change...

get best of all with such an easy switch!!!

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Post #: 25

RE: Another sprocket question - 3/5/2006 4:18:16 PM

600f4ika

Posts: 25
Joined: 1/31/2006
Status: offline

I went -1/+4 and wow....this bike is awesome. 1 and 2 are no problem for coming up and third gets real light on the front. It turned this bike into a new beast. About the gas mileage I get 185 miles a tank.

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Post #: 26

RE: Another sprocket question - 3/5/2006 10:19:15 PM

cjbettis

Posts: 1098
Joined: 10/29/2005
Status: offline

quote:

ORIGINAL: 600f4ika

I went -1/+4 and wow....this bike is awesome. 1 and 2 are no problem for coming up and third gets real light on the front. It turned this bike into a new beast. About the gas mileage I get 185 miles a tank.

Is the F4i the same 4.8 gallons (something like that)???

if so...that is way higher than I heard anyone say they get...wow...especially geared down that much

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Post #: 27

RE: Another sprocket question - 3/5/2006 10:22:42 PM

SquireSCA

Posts: 417
Joined: 8/7/2005
Status: offline

I barely get 100 miles on -1/+2, so my guess is that he did not recalibrate his speedo/odo and it is reading high.

Not only would his speedo read much faster than he is actually going, but his odomoter will rack up mileage 20% faster than it should, which would account for why he thinks he is getting 185 miles on a radically regeard bike.

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Post #: 28

RE: Another sprocket question - 3/6/2006 5:46:27 AM

600f4ika

Posts: 25
Joined: 1/31/2006
Status: offline

Nicely put and thought out. I didn't think about it effecting the odometer reading just the speedometer. I'll have to go back and recalibrate it.

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Post #: 29

RE: Another sprocket question - 3/6/2006 6:25:45 AM

SquireSCA

Posts: 417
Joined: 8/7/2005
Status: offline

You can use the online tool found on this page to calculate how much you are off based on the gear change:

http://www.speedohealer.com/eng/adjust.htm

Basically, you are off by almost 20%.

So when you drive 100 miles, your odomoter will read 120. When you drive 150, it will read 180, etc...

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Post #: 30