The D.I.D. Chain is most often thought of as the best but they are $$. The OEM chain last for many over 20k. I am using the one from Blair at SV Racing and it's very good . I would suggest any of the 3 are sound choices
I used an EK chain with sun star sprockets and it works. got 31000 from the stock chain and 28000 miles from the second stock chain with sun star sprockets. Those are O-ring chains. The EK chain is an X ring but haven't run it long enough to know the longevity. i do know it's very noisey compared to the DID O-ring stock chain. Will not use another EK. All were and are 525 chains.
You need a chain tool for every chain, OEM or aftermarket, unless you plan on removing the rear swingarm.
The OEM chain is the DID 525V. DID has different quality chains for the 525 size, see their spec sheet. As far as I can tell, the DID 525VM2 is widely recommended as a replacement for the OEM chain.
When I was looking for it, the 525VM2 was only available in gold, which felt wrong for a dual sport bike... (not sure why people are crazy about gold chains).
So I went for the DID 525ZVMX which is overkill for the bike but I was very satisfied with it. Unfortunately, the lifetime of the bike was shorter than that of the chain, but for as long as I was using it, it was very quiet and I never had to adjust the chain (no stretching whatsoever).
With the wide variation of mileage that people report on their chains, I think that riding style and maintenance habits are much more significant than X vs. O etc. Wouldn't worry too much about it.
It is recommended to always use new sprockets with a new chain because their wear in together. Using the old sprockets might shorten the lifespan of your new chain. I always use OEM sprockets, particularly to have the rubber damping in the front sprocket.
A forum community dedicated to all Suzuki Strom owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, purchasing, reviews, accessories, maintenance, and more!