Chain worn out – few question regarding upgrade to 520.
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Bike Model = : Hyosung GT125 Naked Comet
Hi everyone,
My chain is almost worn out…
I would like to replace it and buy new front and rear sprockets.Can you give me more detailed instructions on whether the 520 chain and all the components will fit my Hyo GT125 naked comet motorcycle on a plug-and-play basis?
My parts dealer in Poland is trying to sell me a 428 DID series vx3 and sprockets for almost £100…I’m a little worried that he’s trying to rip me off by selling me a weaker chain for a few pounds more than I can buy an RK chain and sprockets for.
Also, should I buy a chain with O-rings or X-rings?
Which is more durable and efficient?
What sprockets exactly should I look for for a 520 chain?Many thanks for all your advice.
I know that it is possible to buy a chain on this website and everything else, but I don’t have a multi-currency account to make the payment…
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If you have a 428 chain , you can just get 428 DID chain for a little while until you upgrade yourself to a 520 kit.
Ours is just a 520 sprocket from techcorps or JT (our local supplier sends it to us) to fit the 125cc , usually 1-day wait and we ship them sometimes extra time is needed if we get sprockets from EU (ie. Afam or Sunstar front sprockets). Payment is not a problem in any currency , there is different way to pay , even Amazon Pay , Revolut, Klarna/ClearPay etc is included. Send an email to discuss further.
If you source it locally, get a normal 428 sprocket kit for your bike and use DID as trusted brand, bike uses 136-140 links chain. You could probably be OK using the same sprocket all year from new. It is cheap rubbish chains like CHOHO (china) , MTX (china) that wear down badly. Stick with DID or JT
X Ring / O-Ring is up to you! Just lasts a little longer but good adjustments and good chain lube is more important for chain life.
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