TW200 Forum banner

1 - 19 of 19 Posts

·
Registered
Joined
·
2,771 Posts
When you change out your sprockt, get yourself an O ring chain. You won't be adjusting your tension very often. As those stock chains stretch they start to wear on the teeth of the sprockets. I am running 60 teeth on my rear. Sure helps out on the trails where mostly you are just putting along under 15mph. I don't mind running the back roads at 50.
 

·
Registered
Joined
·
5,870 Posts
Hi dlddd34, and welcome to the forum!

How many miles do you have on your stock chain?

Good(?) news is it may have stretched enough that it will work with the larger sprocket, the bad news is that if it does work then it is time to get a new chain.

Brian
 

·
Registered
Joined
·
1,667 Posts
When you change out your sprockt, get yourself an O ring chain. You won't be adjusting your tension very often. As those stock chains stretch they start to wear on the teeth of the sprockets. I am running 60 teeth on my rear. Sure helps out on the trails where mostly you are just putting along under 15mph. I don't mind running the back roads at 50.
Or you could try to find one of those pre stretched chains that Greg found in Moab. :rolleyes:
 

·
Registered
Joined
·
19,597 Posts
These guys supply all sorts of sizes. A 60 tooth for the TW starts at around $81 plus shipping.
Home | Sprocket Specialists - World's Best Sprockets Since 1950


https://sprocketspecialists.com/


Another option is to drop a tooth count on the front sprocket. Going from 14 to 13 teeth in the front is about a 9% change while going from 50 to 60 teeth in the rear is about 12% change in overall drive ratios.
Just to muddy the waters and make you folks break out the calculators I run 13 x 55 sprockets turning a 26" nominal diameter ATV tire.
 

·
Registered
Joined
·
4 Posts
Any sprockets greater than 55T are aluminum. I've read in this forum, that aluminum = bad, steel = good.
Do I need to be concerned about the larger sprockets being aluminum?
I've used the calculator to see that I can get a similar torque improvement by going to a 13T front and 55T back. But, again, I've read on this forum, that 13T=bad.....

So, I'm torn between going 14T front and 60T aluminum rear
OR
13T front and 55T all steel.
 

·
Registered
Joined
·
5,870 Posts
Hi Rorr, and welcome to the forum!

There is nothing inherently "good" or "bad" about aluminum or steel sprockets. It all depends upon the characteristics that are important to you, such as:

-Weight - aluminum sprockets are typically lighter than steel
-Durability - steel sprockets are typically more durable than steel from a wear standpoint
-Appearance - steel sprockets can rust, while aluminum sprockets don't rust (although they will oxidize)
-Cost - not sure about this but my guess is that they are both comparable
-Availability - some sizes are only available in either steel or aluminum

Again, there is nothing inherently "good" or "bad" about 13 or 14 tooth front sprockets, but there a few things to consider:

-Rear sprockets are generally considered to be easier to change than the front sprocket. Also less chance to pinch wires if the front sprocket is not changed.
-With the 13 tooth front sprocket, the chain is required to travel in a slightly tighter radius as it goes around the front sprocket. Theoretically, this may result in greater/faster wear on both the chain and the sprocket. From a practical standpoint, this is most likely inconsequential on a TW with a whopping 12 hp (claimed).

Since you haven't told us where you live, what kind of riding that you do, and what if any mods your bike has, there may be other considerations that we are not aware of.

Hope this helps,

Brian
 

·
Registered
Joined
·
4 Posts
I just bought a 2008 with 6K miles on it. It has been driven exclusively on the road. Everything is stock.
It clearly needs a new chain - has original
I plan on replacing the chain and both sprockets
I intend to use it exclusively on trails/forest roads. Primarily as a hunting bike.
I’m a pretty big guy - 6’ 3” 275lbs
I want something that I won’t have to be slipping the clutch on steep terrain
Expense is always a factor. I can get a 60T sprocket for $65 at pbisprockets.com. 55Ts are $25-$30. Anything bigger than 60T runs $80+
 

·
Registered
Joined
·
562 Posts
Where did you hear aluminum sprockets are bad? That's ridiculous.
Steel last much longer but are stupid heavy. And the weigh is the worst place to have it, on the unsprung side of the suspension. It matters less on the TW because it's not a bike that people typically buy to ride fast on rough terrain.
 

·
Registered
Joined
·
2,771 Posts
I don't think you need anything larger than the original 50. It's geared too low stock. Try a 13t front first
I beg if differ about stock. For us bigger folks that do mostly offroad and rough terrain, that lower gearing is a plus. I seldom go over 45 with mine and when in the bush when I need slow and torque, that 60t gives me that extra on demand. As far as going smaller on the front, is harder on the chain as it has to bend that much more.
 

·
Registered
Joined
·
19,597 Posts
I also beg to differ about stock gearing as a general recommendation for everyone. For those who live and ride in mountainous terrain, that lower gearing is a plus. Optimal gearing is a relative thing. Stock first gear in Waretown NJ's fairly flat sea level terrain may very well seem to be too low. Maybe for the OP's east Texas too. It all depends on where one rides. For example I don't have to travel a hundred miles to the Appalachians before I see a 1000 foot elevation, I see several thousand feet of relief just looking right out my window towards my local riding area. Lower gearing for me turns a struggle into a pleasure.
So everyone should feel free to make their gearing selection based on personal preference & intended riding destinations.
 

·
Registered
Joined
·
62 Posts
I’m with Randell. Best thing I did prior to going to Moab was put on a 56 tooth rear sprocket. You want low speed and high torque when negotiating all those rock ledges, steep slick rock and inappropriately placed BLM fences. Thought I would put the stock 50 back on when I got back but really like the 56 for single track, tree roots and smallish logs found in my neck of the woods.
 

·
Registered
Joined
·
13,417 Posts
inappropriately placed BLM fences.
I'm glad you have good humor about it. Bonus is you didn't get hurt, which is why you probably have good humor about it.

"He's in the fence"! I'll never forget Larry's comment in his video. Too funny...now!
 
1 - 19 of 19 Posts
Top