As some reader's may know I bought a 426 not too long ago so I am still learning the spec's of the ride. I have been away from home for over a month now ( poor me no bike too ride) and have no idea what type of chain, spec's, the yz426 has and with no bike too look at I do not know exactly what to order. I am getting the std. gears 49/14 ( renthal) but wanted to go ahead and order the DID xring chain but since I dont have the bike or manuel what the hell are the spec's ( links, 520 etc). See when I get home I got to get the bike ready; a gift too myself for working so hard.