Just looking for oppions on longest lasting chain/ sprockets. My 400 just eats them. If anything I run my chain on the loose side as my first set was gone in a month (adjusted to tight). I had (5) 300's and never had chain/sprocket wear like this. Do you think it has to due to more engine braking of the 4 strokes ?? I'd rather spend a little more for the SS sprockets and a better chain than to spend less and have to replace them alot.

Did X-ring and this: http://www.dirttrick...n-Sprockets.htm

Almost as light as aluminum but guaranteed not to wear out for a year or they'll replace it.

I'm not sure if I would recommend this design of sprocket. This company, and others, do not use a full ring on the section that bolts to the hub. Should a bolt become loose or an unusual stress be placed on one location, the stress cannot be distributed around the hub. At a D37 race a few weeks ago a top rider broke his hub using this sprocket and we feel that the above reasoning applies.

By the way, this is just an opinion. The manufacturer claimed that the bolt must not have been torqued properly.

What about Sidewinder sprockets? I've heard that they are very durable....

I don't hear a lot about Sidewinder except how terrible they are to deal with. If I've read 100 posts over the years about Sidewinder, easily 98 of them have said don't deal with them. Buyer beware. Some of thier products do get good reviews but they seem to be way overpriced, by and large.

I've found a good name brand (Sprocket Specialist, Sunstar, etc) steel rear sprocket along with a DID xring chain to last better than anything else. I've tried the Regina oring, DID oring and Renthal oring chains and none have come close to the durability of the xring for me.

My 400EXC eats up 13t CS sprockets pretty fast but the chain rarely needs adjustment and the rear sprocket easily goes a year.

Sprocket Specialist has some fantastic deals on sprockets and I hear they hold up better then Renthals at a cheaper price.

www.sprocketspecialists.com

Have you thought about going with a steel sprocket on the rear. Also they offer a special extra case hardening on the aluminum's ones.

[ June 05, 2002: Message edited by: KTM250rm ]

[ June 05, 2002: Message edited by: Travis D-37 ]

If you go aluminum defiantly get a hard anodized rear. They hold up much better. And remember if the chain looks too loose it's not.

Jeb, I'm not sure what your finial ratio is (13-??) but have you thought of running a 14 cs and going up 3 in the back to compensate for the larger front? That would take some of the stress of the cs sprocket and leave you with the same basic ratio, or do you have the room to go that big on the rear.

Rich I would have to agree with the manufacture and disagree with the cause of that rear wheel coming apart. I've run Afam's for years with no problems and they use a similar design. I've even taken 2 bolts off (opposite each other) and rode all weekend on it my old CR500 when a buddy realize he had lost all but 2 of his bolts off his 125. I would guess either, one of the bolts came loose and caught the swing arm or whoever installed the sprocket didn't torque all the bolts properly . Just my opinion either way.

Travis,
I'm running 13:52 so I don't have much option. I'd love to run a 14 but I think the biggest rear is a 54.

Ive got a sidewinder ti-moly sprocket on my Yamaha. Over 1200 miles of hardcore offroad an d still looks like it just came out of the box. 130 bucks though.

Try looking at www.supersprox.com. I have been riding them on a 100hp bike (only on street) but they seem to last quite long. They have an inner part made out of aluminium and the outer part out of steel riveted together with titanium rivets. An interesting sprocket, the only downside is that the rivets will eat through your rear chain guide a little bit. But who cares!

cucuma

I have a moose stainless sprocket on both my bikes. My dealer is good to me and I got them for $80 each which is far less than list. They are super heavyduty and dont show any wear. A real stainless sprocket is very heavy, not comparable with aluminum so dont let anyone bs you.Personally I cant feel any diference in weight or hp on my bikes as they got plenty power like yours.

I put on a Sidewinder chain and sprockets when new. It's now 3000 miles later and the rear sprocket still looks new, the front is showing some wear and the chain is still hanging in there. I got a 13 on the front and a 52 on rear. I run my chain on the loose side. Chain and sprockets are of the Titanium Series. The combo set with some master links and lube was $320.