Chain and sprockets?

Treb37 · Feb 23, 2003

I don't wanna start another flaming contest here but I'm curious what kind of sprockets people are using on their enduros. Has anyone tried the stainless "Titax" sprockets from Rocky mountain mx or the "primary drive? I think I'm gonna go with the RK X-ring chian and some sort of steel rear. Thanks for your input

gooby · Feb 23, 2003

Hey Treb,fancy meeting you here.A good o or x ring chain and steel sprockets is the way to go.They will last much longer than aluminum or poor quality sets.Most will agree i think,remember replace all three pieces at the same time as a complete set.

Treb37 · Feb 23, 2003

Do I know you Gooby?

redeni · Feb 23, 2003

On the topic of chains and sprockets...
i'm looking to replace the set on my 90 kdx200. What is a good combo for number of teeth on each sprocket?
I do woods riding and some hills and try to keep as much low end torque as possible.
advice??

Thanks, Erin
___________________________________________
1990 KDX200
Pennsylvania
Tower City Trail Riders, Inc.

Jaybird · Feb 23, 2003

Erin,
your bike comes stock with a 13/47. I would think you would find a bit better ride with a 13/50-52.

derekk87 · Feb 23, 2003

I put a Titax Stainless Steel rear sprocket on my YZ125, It seemed to last much better in the mud and muck and i dont take the best of care of my chain and sprockets.

RJ-KDX · Feb 23, 2003

Just remember;

The chain will wear out an aluminum rear sproket.
A steel rear sprocket will wear out the chain.
A chain will eventually wear out.
Which one do you want to replace first?

It's not a riddle, just use common sense. :thumb:

Fred T · Feb 24, 2003

I recommend sunstar steel sprockets and RK X-Ring chain. Inexpensive and long lasting.

gooby · Feb 24, 2003

Rj,you may have a point.However,i think a cog that stays in shape is best for chain life.A beat sprocket will use up a chain worse than you might think?An x- ring chain/steel cog set properly adjusted and lubed is the longest lasting combo imo.I use sunstar steel as well.
Erin, i run a 13/50 on my kdx and like it better than the stock set.

Jaybird · Feb 24, 2003

Fact is, a chain is what ruins a sprocket. A good chain that is within specification will NOT tear up an aluminum sprocket. Only when a chain's pitch has exceeded spec. will it deform the teeth on a sprocket.
It only "seems" that a steel sprocket is better, but it actually accelerates the demise of a stretched chain.
Another fact is that if you never let your chain get past spec. length, then you can keep running the same sprockets over and over again.
Only forgiegn debris, bad adjustment, and chain growth will screw up ANY sprocket, steel or aluminum.

xr400forever · Feb 24, 2003

Rocky mountain sells steel (primary drive) rear sprockets for about $15. A new chain is $50 (for a decent o-ring). When my rear sprocket wore out (and I do mean WORN OUT)I just put on a new primary drive rear sprocket (no, I did not replace the whole set like everyone says to do!) and kept riding. So far things seem to wearing at a reasonable rate, and I saved a wad by not replacing "everything at once". A whole new set would have been $100+, so even if the rear sprocket (a cheap $15 steel one)wears out at twice the rate, which it is not, I will be saving money. At some point I suppose it will become unreliable, then I will replace it all.

Jaybird · Feb 25, 2003

If your chain's pitch has grown to a point that it deformed the teeth of either sprocket, it has become unreliable. Don't kid yourself, which is what you are doing, xr400forever.
The cost of a new case and the healing a few bones far outweighs the price of a chain and some good maintenance practice.

KDXKen · Feb 25, 2003

I run 13/52 all steel gears and an oring chain. It is a hill climbing monster.

Braahp · Feb 25, 2003

Renthal o-ring/Talon Groovelite sprocket 13/50

redeni · Feb 25, 2003

If I run 13/50 what size drive chain do I need (links?) ? will I need something longer than 110?

Treb37 · Feb 25, 2003

To those of you that actually responded to the original question.....Thanks for your input. I ordered a Titax stainless rear and countershaft sprockets and an RK X-ring chain from Rocky mountain MX yesterday total was $127.

RJ-KDX · Feb 25, 2003

Originally posted by Treb37
To those of you that actually responded to the original question.....Thanks for your input. I ordered a Titax stainless rear and countershaft sprockets and an RK X-ring chain from Rocky mountain MX yesterday total was $127.

Looks to me like you already had your mind made up, before you asked the question.

redeni · Feb 25, 2003

Originally posted by redeni
If I run 13/50 what size drive chain do I need (links?) ? will I need something longer than 110?

Nevermind that question. I ordered a 13/50 set from FRP and getting a chain with some extra length so I can adjust. Thanks for the help!

andrew · Feb 27, 2003

I find that a smaller sprocket on the rear = less wear on the chain guide. Therefore, I recommend a 12/46 combo (which is so close to being the same as 13/50 thats it's not worth arguing about).
When I used to run a large rear sprocket I found that the angle the chain came through the guide was chopping the rear of the guide so badly it wore through the rear bolt quite quickly. Now, the wear is a lot more even, and the guide lasts a lot longer.

CaptainObvious · Feb 27, 2003

Having too small of a c/s sprocket really puts a lot of wear on the chain because of the tight turn it needs to make. A 12 tooth sprocket is OK for a roller chain, but too small for an X- or O-ring chain.

GREENHORNET · Feb 27, 2003

hey- i'm not sure what to run i have a 13/51 set up right now there hardly is a first gear- u rev out real fast ,it is a reall hill climbing machine but i do a lot of riding in fields wide open and some in real tight timbers so i was woundering if i went to a 13/49-50 would i have it good in both worlds?

Jaybird · Feb 28, 2003

Originally posted by RV6junkie
Having too small of a c/s sprocket really puts a lot of wear on the chain because of the tight turn it needs to make. A 12 tooth sprocket is OK for a roller chain, but too small for an X- or O-ring chain.

I agree that the smaller the CS sprocket, the harder the chain has to work. It is always best to use the largest CS sprocket you can to obtain the gearing you want.

However, your statement about being OK for roller chains but too small for X-or O-ring chains is not correct.
All three chains, Standard, X-ring, and O-ring are essentially the same chains. They are all three roller chains made in almost identical fashion. The only difference in them is that X and O-ring chains have a ring that helps to keep pre-packed lubricant in the pin/bushing area.
It matter not what type of roller chain you use, if you go small on your CS sprocket, you risk loosing some life of your drive set-up.

soggysod · Feb 28, 2003

hey xr 400, i had that metality, til my chain stretch cought up with me, then totally out of the blue, chain jumped broke the shift rod and about 150 bucks in parts, and a new chain sproket set for the same, i am about to get to go rindin, cheap maintenance i say and alot easier than the work for replacing all the gaskets and the shift rod. soggysod

Chain and sprockets?

Treb37

gooby

Treb37

redeni

Jaybird

Apprentice Goon

derekk87

RJ-KDX

Fred T

gooby

Jaybird

Apprentice Goon

xr400forever

Jaybird

Apprentice Goon

KDXKen

Braahp

redeni

Treb37

RJ-KDX

redeni

andrew

CaptainObvious

Formally known as RV6Junkie

GREENHORNET

Jaybird

Apprentice Goon

soggysod

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Chain and sprockets?

Apprentice Goon

Apprentice Goon

Apprentice Goon

Formally known as RV6Junkie

Apprentice Goon

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