Apologies for a mundane topic. I need to order a new chain and sprocket set so had a look on B&C website and wish i hadnt! First off they dont list NSR's but im sure they supply them but how many different chains do they stock!!

So i was wondering what folks on here recommend for road use? Tsubaki alpha/omega/sigma
Renthal R3/R4
DID
I was planning on getting O ring.

On the sprocket front i was going to get 15 front 42 rear hard anodised renthal, anyone see a problem with this ratio and anyone any idea how long a chain i will need to order.

Thanks in advance,
Andy.

Standard gearing works well on a pretty much standard (delimited) bike. It gives good acceleration and a reasonable enough top-end for sane road-riders. 15/40 is also good, the motor pulls it quite happily, and it will also increase your fuel mileage slightly, without too much compromise on performance. I am lead to believe that an X-ring chain is better than an O-ring, but keeping it clean and well-lubricated is the key.

For track and power potential, a cheap'n'cheerful non O-ring chain has seen a very slight power increase at the wheel on the dyno over a similar O-ring chain.

I personally use D.I.D. chains, but I think anything with a well-known brand name is much of a muchness... a bit like fully-synthetic 2T! They're all good, and down to personal preference.

Just buy any 520 chain with 110+ links, and shorten it to the required length. No problem using a split link on a 250. (15/40 and 15/42 both run with 108 links)
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Andy.
NSR-WORLD.COM

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My experience with chains (non-oring) on dirt bikes was good. I decided to stick with the non-o-ring types for my Ducati when I bought it. I kept the chain clean and well lubricated but both the DID and RK chains that I tried didn't last more than 5,000 km.

I then decided to switch to a Regina x-ring chain for the Ducati and I think that's got over 14,000 km on it now and I'm not having to adjust it all the time, either.

I recommend Lanotec for lubricating chains, though I think it's only available in Australia.

thanks for the info guys. B&C only stock standard teeth sprockets, they can get additional teeth ones made and for not too much more cash but its a 2-3 week lead time. i ordered renthal rs4 xring chain and renthal sprocket (the fronts are JT) today and will arrive tomorrow.

I always buy Regina gold chain. Ever since I first used it on a TZ350 years ago. Was really impressed at how it didn't stretch like buggery, like all the other chains before.
I've never bought any other make since.