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Chain & Sprocket Conversion
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Chain & Sprocket Conversion - November 27, 2007, 01:18 PM

Got a couple quick questions...So im thinking about a chain and sprocket conversion and was wondering if I went -1/+2 (15/45) with a pair of AFAM hard-coated alloy sprockets, could I still use a stock size, 525 chain? I know a big part of the conversion is to cut weight and reduce friction, but how well do 520 chains hold up? Granted its on a 600cc bike and ridden only on the street for now (track time next spring hopefully), but id rather not sacrifice chain integrity over a fraction of a lb if the difference is that dramatic. Also, is it true that changing the gearing even by 3 teeth can throw off the speedo reading by as much as 10 mph?


I'm not a leg humper... but I'm super attracted to how fucking stupid she is! - wildjester

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November 27, 2007, 01:32 PM

Your stock spedo is off by about 10% at 100 mph from the factory. Id say -1/+2 would def require a spedo healer.

The 520 chains are more than strong enough to handle a N/A 600, and will do so for 20,000 miles if you maintain your chain (cleaning, lubing)

Going -1/+2 will def affect your highway riding though. Ive gone only -1 up front and can notice a difference.

Ive got over 10K miles and 5 TDs on my 520 RK chain with alum vortex sprockets, however its a 98 puttin 100Hp to the rear (really 99.6 when it was tuned, but I say 100 to help out the old girls ego)


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November 27, 2007, 01:40 PM

i have a gsxr750 but i went down 1 tooth in the front and notice ~1,000 rpm increase @ hwy speed and i'm off by around 15-20mph.....

also 520 is perfectly strong. I have a 520 chain with a non-rivet style master clip...works great never had a problem with them


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November 27, 2007, 01:42 PM

FYI...kneedraggers has a complete conversion kit you may want to check out.


Chris
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November 27, 2007, 01:52 PM

Quote:
Originally Posted by deviousR6
FYI...kneedraggers has a complete conversion kit you may want to check out.
Yeah, Sum of All Parts has a package for $175 shipped. It includes both AFAM sprockets (-1/+2) and a 520 RK XSO chain.


I'm not a leg humper... but I'm super attracted to how fucking stupid she is! - wildjester

Castle: rob, potbelly, stat. i brought the bike, wanna ride 2 up??
ClemsonJeeper: omg i'm in now!
Castle: fvck, did i just put that in the sb?

Last edited by JTG40cal; November 27, 2007 at 01:58 PM..
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November 27, 2007, 01:54 PM

Sree can also get some kick ass prices.

However, assuming you are going to have this put on for you?

If so, get some prices, talk to the local shops (FFC) and tell them you can get the chain and sprocket kit for "X", and if they will match that, or come close you will buy it from them and have them install it.

The shop dosent make as much of a mark up but they do still make something.


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November 27, 2007, 01:58 PM

i got mine from Sree

and if you want it installed let me know i'm over by mason


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November 27, 2007, 06:07 PM

Quote:
Originally Posted by dubplaya
i have a gsxr750 but i went down 1 tooth in the front and notice ~1,000 rpm increase @ hwy speed and i'm off by around 15-20mph.....

also 520 is perfectly strong. I have a 520 chain with a non-rivet style master clip...works great never had a problem with them
you changed by 1 tooth (like to a 14 from a 15), and thus a ~6% change in gear ratio, and you are off by 25-33% on the highway? the only way you would be off by 15-20mph is if you were traveling at 225-300mph.

something is wrong with your speedo, NOT your chain/sprocket combination


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November 27, 2007, 07:20 PM

I'll be going with a -1/+2 combo on my race bike.
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November 27, 2007, 07:51 PM

Don't speedos still run off of the front wheel? Mine do. The gear ratio has no effect on a front wheel speedometer.
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November 27, 2007, 08:11 PM

Quote:
Originally Posted by geezer
Don't speedos still run off of the front wheel? Mine do. The gear ratio has no effect on a front wheel speedometer.
some do, some dont

my ducs and my husky--front wheel, my SV, transmission pickup


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January 8, 2008, 06:30 PM

So I decided to put Dieder's (aka Mark's) MMI certifications to the test and asked him to help me out with my chain and sprocket intall yesterday. Figured the weather was nice and I had the bike out anyways so why not? Mark must really love wrenching on Bikes because he answered the call without question. He pretty much said ready when you are. Not bad service with less than 12 hours notice! Anyways, we snapped some pics throughout the process:

Bike up and tied down on the lift (Dieder checking out how fugged my stock chain is):


First step: Removing the shift linkage and sprocket cover:


Linkage and cover removed (told you the chain was bad):


Rear wheel removed (Note: now is a good time to clean everything you cant normally get to):


Mark used a ginder to grind the rivet down and the rivetting tool to break the chain:


-1/+2 AFAM Sprockets vs Stock 16/43 Sprockets (Big difference in weight between the rears):


Both sprockets and chain in place, rear wheel back on:


Cutting the chain to length (Note: Measure twice cut once!!! Its better to cut the chain too long and work your way back rather than cutting it too short. Also remember that you will have to adjust the wheel spacing to account for chain tension):


If you did everything right it should look like this when you are done:


All in all it was a very easy install with no major hang-ups. Mark (Dieder) is a great guy who definitely knows his way around a bike. If anyone is looking for some fast, friendly service in the area I would highly recommend giving him call. As for the bike...it pulls hard as hell! Definitely happy with the results. Ill have to check speedo readings and look into a healer later on.


I'm not a leg humper... but I'm super attracted to how fucking stupid she is! - wildjester

Castle: rob, potbelly, stat. i brought the bike, wanna ride 2 up??
ClemsonJeeper: omg i'm in now!
Castle: fvck, did i just put that in the sb?

Last edited by JTG40cal; January 8, 2008 at 08:26 PM..
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January 8, 2008, 06:34 PM

Quote:
Originally Posted by JTG40cal
Yeah, Sum of All Parts has a package for $175 shipped. It includes both AFAM sprockets (-1/+2) and a 520 RK XSO chain.
I have dealt with them before - good to work with


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January 8, 2008, 06:39 PM

Quote:
Originally Posted by birdman
some do, some dont

my ducs and my husky--front wheel, my SV, transmission pickup
Countershaft sprocket is not stock on the SV....


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