I can't believe this rear sprocket!!!!!

[deathman53]

I have a 84r extended axle on my 86 200x, I ordered a 36t sprocket for it from sprocket specialists, there isn't even 10 hours on it, its half worn and it starting to hook. I used a new front sprocket and new chain, how is it that the rear sprocket is worn and the front and chain are like new. We aren't taling about a $30 sprocket here either, a $80 custom sprocket. I ordered a sidewinder sprocket today, most durable they have to offer. I'm gonna call sprocket specialist and tell them about this, maybe they will send me another sprocket??????

[Billy Golightly]

What kind of material was it made out of? If its an aluminum one its gonna wear no matter what...

[Dammit!]

How tight/loose is the chain? If there's more than an inch and a half slack with a rider sitting on the trike, that's why. When the chain is loose it has nothing to hold it down in the bottom of the sprocket groove so it ends up riding high on the teeth where they're the weakest. You can shark tooth them in a single ride on a powerful machine that way. Keep the chain tight and they last a long time.

[deathman53]

but not even 10 hours????? I had a aluminuim sprocket on my crf450r quad and it wasn't new and it lasted me about 5 months before it got as bad as ths sprocket did in under 10 hours of riding. By the way, the chain was adjusted right.

[deathman53]

I got a hold of sprocket specialists and they said to send the sprocket back to them and they wll send it to warranty dept. and look at the sprocket and possibly do something.

[Somekindofjerk]

Try denniskirk. Their sprockets are decent

[deathman53]

try to find a 36t sprocket for a 84r, standard sprocket was 41t. I looked long and hard. sprocket specialists and sidewinder are the only places I found. I have to use that sprocket as my 200x had a 84r extended axle, and the 38 is not high enough, (1st and 2nd gear are useless with the 18" tires and this is even with a 14t front, I was able to do 3rd gear holesots without hesitation). The 36t works well with my motor and this is before the cam and 12:1 piston I'm gonna get.

[xman23]

yea i have a 35 tooth on my 200x, i think its a sunstart if that sounds right, but its been holding up real well

[86waterpumper]

this is why I say to just buy cheapo sprockets, like titax from rocky mountain or something haha even sidewinder high dollar ones will wear out, ask billy :P

[TimSr]

If it wore that bad, that fast, there was something wrong with the metal temporing or alloy. There is no way to wear out the rear sprocket without wearing out the front sprocket a lot faster regardless of chain condition, adjustment or anything else. A steel rear will outlast 3 or 4 front sprockets. An aluminum rear will still last 2-3 times as long as a steel front. Do the math. How many times does your front sprocket turn for every turn of the rear? Thats how much faster it will wear out.

[Billy Golightly]

Yeah even the Sidewinder Titanium sets will wear out, although I got a good 3-4 years of abuse out of mine.

I agree with Tim though, something was wrong with the material it was made from which is why I questioned, what was it made from?

[deathman53]

sprocket specialists said to take it off and send it back to them. I will take it off and send it back to them as soon as I get and put my sidewinder sprocket on. I couldn't understand how it wore so fast, either. I know it will be some time before they get back to me on wheather they are gonna send me a new one or not. That is why I bought a sidewinder one, I only have 1 atv and one dirtbike operating now, so the $100 is worth it for a few weeks of riding. I really wish I could get a steel sprocket, but nobody makes a 36t for a 84 250r. I don't have a stock or aftermarket 200x axle in my 200x, its a 84 250r extended axle, that is why the specail order sprocket.

[hrc85250r]

umm, sidewinder will custom cut any sprocket you want, reasonably too and quick.... i know they have a template for a 84 R....sidewinder chains are junk though dont even bother with those....sprocket seem pimp though...all of our drag sprockets are custom aluminum, we run a 56 tooth on the drag machine.... dont even bother with aluminum rears, last one i had lost teeth in a few weeks from some logs or something in the trails....

[deathman53]

I remember on my warrior, I had a aluminuim rear and it wore great, but I dumbly didnt use a skid plate and it hit the rr tracks when crossing and it cracked, by the time i got home, i was on 1/4 of the sprocket. this bike is for track use, and xc will have a skid plate, so I'm not too worried.

[hrc85250r]

i dont understand...why would you buy an aluminum sprocket when you could buy cr-mo or some type of steel sprocket when you know that they last longer( not generic steel) for around the same price?