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wats the difference between 520-525? in sprockets?? does it refer to the pitch of the teeth or something?? and if so wats the difference of having a 520 over a 525? or visversa?
sprocket pitch???
- Thread starter stuckon250
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spoonz
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520 is a lighter/narrower chain so has less power loss through the drivetrain.
Negatives are reduced life and can snap if abused
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ummmm so why the hell did they make 525 then?? any reason why you should have 525?
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ahh cheers mate 
just wondering how great is the life spand difference between the 2 sprocket pitches?
just wondering how great is the life spand difference between the 2 sprocket pitches?
S
spoonz
Guest
ahh cheers mate
525 will outlast a 520 by some distance so it's cost effective.
I wouldn't put a 520 on anything over a 750cc myself apart from on the track. The power gains are minimal anyway and a hole in your crankcase is expensive.
A big twin on a 520 over 10k miles + usage is just scary imo
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once again cheers mate just something i didnt know and wanted to know always good to learn something new
always good to learn something new 
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once again cheers mate just something i didnt know and wanted to know
matey i would reiterate what spoonz said. Just so you are aware of the difference in size my kmx125 came as standard with a 520 chain! You could go for a belt and braces approach with a 530 but its pointless unless you have a drag busa or similar!
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so the 525 size ends up being the best size (mid range) no too big not too small??.... wow if the 520 chain was used on a 125 id hate to see how long it would last on a 1000 :S???? cheers mate
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