chain keeps hitting tire

Get a pack of single sided razor blades and cut off the knobs on that side. It takes about 20 minutes.

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I wouldn't pull the wheel to one side in any amount with the spokes.

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If it ain't broke, and you mess with it long enough, it will be.

Me either Joe my experience with wheels pulled to the side is they wobble. Of course I never did it intentionally so I'm no expert. Mine just got they way by accident.

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I think I'm going to try and cut the knobs off, but I like the knobs. Is there another way? has anybody made some kind of a 'tire guard' thing, that blocks the chain from hitting the tire?
I have the kind of tire that is smooth in the middle for road efficiency, but it has knobs on the side for a bit better traction on the grass and stuff, so the knobs are useful- here is a pic:
Rear Tire

I got lucky - mine barely hit the knobs for a couple rotation and done.

Suggestion:

I would space the rear sprocket away using a set of matched washers. How much interference are you having?

Just go to the hardware store and get 9 washers....(take rear wheel off) loosen the sprocket bolts - and I'm thinking NO NEED to take the sprocket all the way off if it's loosened - then one at a time take a bolt out and put a washer between back of sprocket and outside donut.

I haven't done this - am I making sense?

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OK, maybe dishing the tire has some drawbacks but if your tire is not true I would make adjustments away from sprocket.As far as spacing the sprocket out some people use another nine hole rubber mount thingy . that is two of them between spokes and sprocket.Not sure if you can get them separately.Ron

Just make sure the chain run is true.

How about cutting just enough from each knob?

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If it ain't broke, and you mess with it long enough, it will be.

I found out that the knobby tires on pavement will make you dump your bike on hard cornering don't ask how I know. But you plan to ride off road so in your case they will help if they are not hitting too bad I'd keep on riding it and let them wear off or else cut them down a little if they are interfering a bunch.
Norman

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"Just make sure the chain run is true."

What does this mean?

You want to make sure that your engine sprocket is in line with your drive sprocket, keeping the chainline straight. I use a steel rod laid accross both sprockets after the rear wheel and motor are in place. If they aren't in line you will be more apt to throw your chain. On one of my bikes I have some wheel rub, now I'm sure this will raise some flags, but I let it rub and it cut its own uniform grooves into the tire and now it runs great...Kelly

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