Jump to content

Motocrossing the Dual Sport

Recommended Posts

I just bought a complete second set of rims & rotors & sprocket for my 500 EXC-F so I can put full dirt tires on it when I want to go to the track. I got the Tusk rims from RMATV & went with a 50 tooth rear sprocket & Michelin Star Cross 5 Medium tires front & back. I took it to a track last week & the tires hooked up great! The 50 tooth made it way more responsive too to the point that it is scary fast since it comes on so quick! Here’s a few shots from the ride. The track didn’t have any cool jumps to air it out on but it had great berms to blast!

 

IMG_3910.JPG

IMG_3943.JPG

IMG_3948.JPG

IMG_3956.JPG

 

 

If the video is blurry go to settings at the bottom of the video & set it for the highest resolution. It defaults to auto with a low resolution.

  • Like 3

Share this post


Link to post
Share on other sites
36 minutes ago, cadman_ks said:

It is a blast to go to the track with a tag on your bike!!!

I agree! Look at my tag line at the bottom of my posts! It comes from a true story!

  • Like 1

Share this post


Link to post
Share on other sites
On ‎4‎/‎17‎/‎2019 at 10:19 AM, YZJeffro64 said:

How many teeth on your front sprocket? How many links in the chain?

My front sprocket is the stock 14 tooth. I had to buy a 140 link chain because it was the next size up from the stock 118, & I think I wound up with 120 links. I'm fixing to swap back to the dual sport rims & tires so I'll compare chains when I take it off.

  • Like 1

Share this post


Link to post
Share on other sites
My front sprocket is the stock 14 tooth. I had to buy a 140 link chain because it was the next size up from the stock 118, & I think I wound up with 120 links. I'm fixing to swap back to the dual sport rims & tires so I'll compare chains when I take it off.

So I guess the 120 link chain I have should work with the 48T rear and 14T front?IMG_9188.JPG

So I guess the 120 link chain I have should work with the 48T rear and 14T front?IMG_9188.thumb.JPG.1e611dd124c1a1e814d29e5522fa2618.JPG

I have a 45T on back now

Share this post


Link to post
Share on other sites
2 hours ago, YZJeffro64 said:


So I guess the 120 link chain I have should work with the 48T rear and 14T front?IMG_9188.JPG
I have a 45T on back now

I swapped back to my dual sport wheels today & compared chains, the 50 tooth sprocket requires 2 more links than stock. I cut 24 links out of the new 140 link chain, so with the larger sprocket I'm running 116 links. Apparently stock is 114, not 118 like RMATV claims. 

I like your graphics! Where did you get them?

Share this post


Link to post
Share on other sites
I swapped back to my dual sport wheels today & compared chains, the 50 tooth sprocket requires 2 more links than stock. I cut 24 links out of the new 140 link chain, so with the larger sprocket I'm running 116 links. Apparently stock is 114, not 118 like RMATV claims. 
I like your graphics! Where did you get them?
[/quote
Thanks for the info
I got the graphics from HG Graphics, I think they came from Sweden.... semi custom
  • Like 1

Share this post


Link to post
Share on other sites
15 hours ago, rustyg61 said:

I swapped back to my dual sport wheels today & compared chains, the 50 tooth sprocket requires 2 more links than stock. I cut 24 links out of the new 140 link chain, so with the larger sprocket I'm running 116 links. Apparently stock is 114, not 118 like RMATV claims. 

...

Hummm...

That's weird.  On my '16, I have a 13T up front, and a 50T in the rear, and my records indicate that I have a 118 link chain.  I'm surprised that you're actually SHORTER than I am.  

Did something change about the swingarm length of position of the counter shaft on the '17 and up bikes???

Interesting...

Share this post


Link to post
Share on other sites
44 minutes ago, cadman_ks said:

Hummm...

That's weird.  On my '16, I have a 13T up front, and a 50T in the rear, and my records indicate that I have a 118 link chain.  I'm surprised that you're actually SHORTER than I am.  

Did something change about the swingarm length of position of the counter shaft on the '17 and up bikes???

Interesting...

In 2017 KTM changed just about everything...... Including gearing

Share this post


Link to post
Share on other sites
1 hour ago, YZJeffro64 said:

In 2017 KTM changed just about everything...... Including gearing

Yes, I realize that.  However, if they swingarm length didn't change much, and the position of the countershaft didn't change much, then the overall length of chain on a 13/50 should be LESS than the overall length of chain on 14/50, and it's different by 2 links.  On a 520 chain, that's 1 1/4".  That's a lot for the swingarm/countershaft position to move, even if half that amount.

I suppose that it's possible that my 118 is wrong as well, but I'm almost sure the last time that I bought chain, I bought 120 links, and cut two off, to get to 118 links...

Share this post


Link to post
Share on other sites

I remember now that I DID have 116 link chain with the 13/50 setup, and it only took about 5 minutes of riding with a new tire on the rear, and I had worn completely thru the inner mud flap.  That's why I went to 118.

SO, 116 will work, but when you have a new tire, your mud flap may not last long...

Share this post


Link to post
Share on other sites
On ‎4‎/‎23‎/‎2019 at 1:45 PM, cadman_ks said:

Hummm...

That's weird.  On my '16, I have a 13T up front, and a 50T in the rear, and my records indicate that I have a 118 link chain.  I'm surprised that you're actually SHORTER than I am.  

Did something change about the swingarm length of position of the counter shaft on the '17 and up bikes???

Interesting...

I didn't count the actual links on both chains, I just counted the number of links I removed from the new 140 link chain & subtracted them from 140. I did lay both chains out side by side & verified that the new chain is 2 links longer than the old chain.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:


×
×
  • Create New...