Anybody had problems with a Rubber lined Front Sprocket before

[Sparky84]

I’ve got a rubber lined front sprocket but as I wrap chain around it, the rubber is stopping chain to get fully onto sprocket on bottom which then makes it very hard to get top on. Even to the point of making links not line up correctly on sprocket.

red arrows indicate where rubber is stopping links to fit all the way on, maybe 1.5mm which makes it 3mm overall.

I'm not sure whether the rubber will wear in, The chain will fit but it is forced.

it fits no problems on plain sprocket And both are the same size and pitch.
If it comes down to it, I’ll just fit the plain one, that’s what is on at present.

[fj1289]

I’m betting that’s exactly how the rubber one works to help quiet things down.   I’m pretty certain the rubber gives way WELL before the  steel chain and the FJ’s torque!!!

[Sparky84]

I’m betting that’s exactly how the rubber one works to help quiet things down.   I’m pretty certain the rubber gives way WELL before the  steel chain and the FJ’s torque!!!

That’s what I’m thinking but just unsure or I’ll just use the standard one to be sure.

[andyoutandabout]

Never seen one of those, but I can understand that might be a good idea. I'm sure that rubber gives just the right amount - its a known brand of chain and sprockets.

[gdfj12]

I believe the original OEM sprocket on my '89 had the rubber. I think the intention is to dampen noise and to cushion the chain links as they wrap around the sprocket. There is probably a detectable difference in noise, in a lab environment. In the real world it might be hard to tell the difference. It may also help the chain to last a smidgen longer. Either one will get the job done & the biggest factors in chain life, after choosing one up to the task, is going to be keeping it adjusted properly as well as cleaned and lubed adequately.

George D