200M sprocket Interchange with a 200s?

[Yamahauler]

I just got home from a fishing trip in northern MB and I took my 200s up there with a home made wood trailer to portage into the lake. The trike worked great for it but it would be a lot better if I was geared down because it worked pretty hard.

I want to go down from a 11T front sprocket to a 10T so I dont have to get a new chain, but I cant seem to find one, so the next option is go bigger on the rear sprocket.

Stock gear ratio is 11/43.
I did the math and a 10/43 gear ratio is equal to a 11/47 gear ratio.

I can get a 47T rear sprocket that fits a 200m, just wondering if it will fit a 200s.

Also anybody have an idea of how much bigger of a chain I should get? Stock is 84 links

Heres some pics from our trip! Have you ever seen a trike in a boat? A little nerve racking!

[Yamahauler]

anybody have an idea about this? thanks!

[muthey]

they should match right up if there is room in your chain guard for it, not much difference between a 200's and a 200'm. I would double check to see how much room you have before buying and attempting to install, so you don't have any issues

[atc500x]

will not fit,they are different,check microfiche.....

[Yamahauler]

Are you sure the part number isnt differant just because its a differant size? I want to go to the 47T sprocket instead of the 43, I dont have a chain case anymore..just wondering if it will bolt on.

[swampthang]

I looked all over for a 10t front sprocket for my old 200 and didnt fine one on my own so I went to my local shop and they was able to fine me one some how idk what it was originaly for but it looked just like a stock sprocket and worked great. You could actually tell a big difference in power. You could make yor own sprocket too. A guy on here not to long ago made himself a 8t front so he could turn some 27 inch tires!

[Yamahauler]

https://www.atvworks.com/products.asp?cat=46&pg=2

Just searched google and found this site.. ordered a 10T front sprocket

XSP103 ATC 185/200 10 Tooth Front Sprocket

10 Tooth Front Sprocket.
Fits:
ATC200M 84-85
ATC200 1983
ATC200S 84-86
ATC185 1980
ATC185S 81-83
Price: $9.95

[H2Sbass]

I'm not sure about which models have which. But I know some 200s have a five bolt, internal damper sprocket and some have the more modern 4 bolt with the bushings that surround the bolts and they are not interchangable. Unless you were to swap the axle as well.