New Zongshen RX3 (ZS250GY-3) Dual Sport

[Wolftrax]

Why can't you change the countershaft sprocket to compensate for the rim change?

[SpudRider]

Originally Posted by Wolftrax

Why can't you change the countershaft sprocket to compensate for the rim change?

That's a good question. I might be wrong, but I believe the RX3 is equipped from the factory with a 13T, counter shaft sprocket. If so, this is the smallest C/S sprocket available. If you wish to change the sprocket ratio for a larger rear wheel, you have two options. You can either install a smaller C/S sprocket, or a larger rear sprocket. If a smaller C/S sprocket isn't available, your only option is to install a larger rear sprocket.

[SpudRider]

Originally Posted by Weldangrind

I'm sure that we'll sort out the sprocket options, even if that means a custom sprocket.

That said, many riders would rather just buy a decent tire than modify the wheel.

I agree on both points.

[SpudRider]

Originally Posted by Wolftrax

Why can't you change the countershaft sprocket to compensate for the rim change?

The 17-inch rear wheel on the Minsk TRX 300i must have a suitable, larger rear sprocket. Therefore, the optional, 17-inch rear wheel offered by CSC will undoubtedly do likewise. The Russian rear wheel doesn't utilize the upgraded cush hub, but it probably isn't necessary.

If larger rear sprockets are not available for the cush hub, we will have two, acceptable choices. Stick with the cush hub, and a 15-inch rear wheel, or switch to a larger rear wheel sans cush hub.

[SpudRider]

Originally Posted by Weldangrind

If that's the case, then the 17" wheels are surely available directly from China, which certainly takes work out of the equation.

It appears you are correct once again, Mr. Weldangrind. Here's a link to the original wheel at Taobao.

http://item.taobao.com/item.htm?spm=...id=38663884322

I could be wrong, but that looks like a 17-inch rim to me.

[katoranger]

When is the boat suppose to arrive with these?

[SpudRider]

Here is a nice review of the Minsk TRX 300i.

http://www.abw.by/news/155795/

This photograph gives a closer view of the 17-inch rear wheel, and the nice aggressive tire.

[SpudRider]

Originally Posted by katoranger

When is the boat suppose to arrive with these?

Tentatively, the bikes are supposed to arrive early next year, perhaps in January. The arrival date is primarily dependent upon final EPA approval of the bikes.

[katoranger]

So we have lots of time to do virtual builds.

[SpudRider]

Originally Posted by katoranger

So we have lots of time to do virtual builds.

Yes, we do.

[katoranger]

Maybe CSC will remove a rear wheel and take some measurements.

[SpudRider]

Here are some nice photos from the Minsk TRX 300i review.





If you are going to ride in any mud, you definitely want a front tire with an aggressive tread.

[SpudRider]

Originally Posted by katoranger

Maybe CSC will remove a rear wheel and take some measurements.

I hope they do; that would be very nice.

[Weldangrind]

Originally Posted by katoranger

When is the boat suppose to arrive with these?

I was wondering the same thing. I wonder how much excitement will be generated by then.

I'm excited vicariously. I know that if this bike hits Canada, it'll be ridiculously priced.

[Weldangrind]

Originally Posted by SpudRider

That's a good question. I might be wrong, but I believe the RX3 is equipped from the factory with a 13T, counter shaft sprocket. If so, this is the smallest C/S sprocket available.

Once we get our hands on one of the CS sprockets, we'll likely be able to source a 12 tooth. It's not wise to go any less than 12, because the chain must follow a radius that's very small.