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Old 10-20-2007, 11:01 PM   #1
ZUlater
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Need advice on some parts I bought

I ordered this:

"RK 520 Quick Acceleration Kit for an 01-03 Suzuki GSXR600. Chain ratio goes from stock 16-45 to 15-45. 530 Stock Chain to RK 520XS0 BLACK. Sprockets are high quality JT.

RK Street Quick Acceleration Kit

RK chain and sprocket kits are matched and balanced for maximum performance and durability.
Each kit includes the correct grade and length RK O-ring chain and precision matched sprockets to increase acceleration on modern sportbikes.
Rear sprockets made of 7075 T6 aluminum, fronts made of C45 & SCM415 steel."


Bought it off of ebay earlier, then a friend told me that a 520 chain will stretch and not last as long and that I shouldnt have bought the kit. I paid $125+ s&h, that seems kind of cheap, is this a cheap brand or is it good?

Thanks for all advice
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Old 10-20-2007, 11:13 PM   #2
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sounds about right.
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Old 10-20-2007, 11:41 PM   #3
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520 conversion is nice to have.....but you do sacrifice chain-life for performance. all chains stretch btw.

i'm sure Motorcycles Unlimited could've gave you something better though. they won't sell you junk, and they'll be straight forward with you if it's worth it or not.

nothing wrong with ordering some stuff online....but if you have no clue what you're ordering....might as well get it local from people who know their stuff....and can probably give you the same price, if not better
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Old 10-20-2007, 11:53 PM   #4
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Shouldn't stretch too badly on a 600, won't last as long as a 530 OE chain, for sure. What I'd be worried about is the chain tensile strength - it should be rated at least as high as the manufacturer specifies on the OE chain. You don't want to catch that upside your head. +1 on Motorcycles Unlimited/Patrick advice.
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Old 10-21-2007, 12:45 AM   #5
ZUlater
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I called before ordering it and the guy told me that the chain is rated at a higher tensil strength than the 530. The only thing that concerns me is the brand, I dont want to get a crappy brand, but after reading the guys feedback on ebay, it seems that people like the kit and no one had a problem with it. Well thanks for the advice. Also, I did contact Motorcycles Unlimited, however I wanted to get a a 15 tooth sprocket up front and they did not have a kit for that, so I would have to but everything individually, which would have probaly been a little more expensive.
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Old 10-21-2007, 06:40 AM   #6
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Absolutely nothing wrong with RK. They make a good chain.
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Old 10-21-2007, 09:40 AM   #7
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RK makes good stuff. There is more to chain life than stretch. The sprocket is narrower and the roller on the chain is shorter (or narrower to match the thiner sprocket). Where the force is transfered from sprocket to chain and back again is on the face of the tooth. Now that it is thinner, it is going to wear down sooner. That will mean the chain will need to stretch to meet the new distance between teeth. At the same time, as the chain stretches it will wear the sprocket to match the space between the rollers. BOTH items, chain and sprocket, are part of the equation. That is why you don't put a new chain on a used sprocket, it'll stretch out much faster.

All that being said, RK makes good chains. I'm sure they make lower quality ones too but you prolly got a good one. If it is the RK kit I am thinking about then it is pre-packaged, all in one, chain and sprockets. That means that RK picked that chain for your bike. I'm sure they picked a decent chain for you. Sure, it may wear out a bit faster. Are also switching from a steel to an aluminum sprocket with this kit? The aluminum will be lighter but wear faster. On a 600, unless you are clutching wheelies all the time you won't have much to worry about.

Make sure it is installed properly. If you want it to last, keep it clean and properly adjusted.

In case you were wondering, yes, you WILL notice the improvement with your new purchase. Enjoy it and be safe.
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