Tri-Z Swingarm/chain question

[J.D.]

I see on my swingarm, right behind the front sprocket, there's a spot where to bolts go in....should a roller go there? The reason I'm asking is because when my chain has no pull on it, the chain just rests on the swingarm and if I go slow enough the chain actually just rolls right over the swingarm...and you can see where there's a slight spot the chain has rubbed an indent into the metal. Thanks

[TimSr]

Its not a roller, but a wrap around plastic chain slider, and you should not run it without one. As you mentioned, the chain will rub right on the swingarm, and Ive seen some where it was worn clear through. You can drag a meatl chain across a metal swngarm very long without problems. If you ran an 11T sprocket like I do, you would really experience a problem!

[J.D.]

You have me beat by one tooth, my gears are at 12/44....I think I'm gonna change to 13/42 though, because most of my riding is higher speed riding and I feel I max it out way too quickly.