1.75 Inch ID x 207

everything is working super thank you for the quick service and the product I was in need ofeverything is working as it should thank you for the quick service and the product that I needed LloydLloyd

No problems. Pulleys came very fast. Price seemed good, and so was the quality. Would definitely use this website in the future.

Great to do business with. Excellent communications. I was expecting a cheap China knock off. Got Genuine OEM part! Fairly good instructions. One step omitted in the written instructions and the videos (NOT YOURS). There is one hole that MUST line up or you will NOT be able to install the "Chain Spreader". At this point in time, if you have installed the part, you'll have to go almost back to square 1. Make sure the hole in the plate lines up with the hole for the screw to anchor the Chain Spreader. Watch for avoiding a flip or twist in the chain. All installed and working well.

As a first time re-assembler of a garage door opener, the replacing of the gear and sprocket mechanism ended up being straightforward enough for me to enjoy the satisfaction of having done a good job. Thanks to Preferred Doors Service for providing the goods I needed to look good

The image and product are exactly what I was looking for thank you.