Chain Alignment Tool for Motorcycle, 08-0048 Aluminum Sprocket Chain Adjustment Tool, Quick & Accurate Professional Chain Alignment Tool Suitable for ATV Scooter Dirt Bike (Orange Red)

Ok, so as an avid motorcyclist for almost 50 years, owning multiple bikes, and doing all of my own maintenance for many years, including tire changes, etc., I know how to do rear wheel alignment. Motion Pro makes a tool very similar to this, but for some reason I've never bought one and always just use the old fashioned method of measuring the distance of the rear axle centerline from the swingarm pivot, on each side. This insures that the rear wheel is aligned properly. On some bikes this is easy. On others it can be more difficult due to things sometimes being in the way of getting a measuring device where you need it on both sides of the bike. And that's where this tool can come in handy. Since the rear sprocket is mounted parallel to the rear wheel's centerline, if the rear sprocket is properly aligned with the output sprocket (chain in a perfectly straight line between them), then you know the rear wheel is straight and properly aligned. I may not use this every time, but for those bikes where the measuring method is difficult, this will be a good alternative. The only possible "negative" I can find so far is that I wish the alignment rod was a few inches longer as the longer the rod, the more accurately it will show if the angle isn't exactly spot on. It will still work sufficiently, but might be a bit more accurate if the rod were a bit longer. Of course, by getting down behind the tool and sighting along the rod's length, you can still visually eyeball the alignment, so not a huge deal. And overall, I'm pretty sure that this little device will come in handy in the future for tire changes, chain replacements, chain adjustments, etc.

The blue part of the tool is Aluminum, both screws are plastic, the rod is some type of stainless(slightly magnetic). The rod is a little over 7 inches and is about 4mm(3.98mm) in diameter. The mouth of the tool is 1-1/16 inches across. It easily fit over the 520 pitch chain I used it on and I expect it'll fit any common motorcycle chain and sprocket.I've read reviews where people have purchased these and complained about the rod being bent on arrival or easily bent. While I'm sure that has happened, you'd have to be pretty aggressive with it to bend it using it as designed. Mine arrived in good condition. At first I was a little disappointed with the plastic screws, but again if you use it with some care I don't see those being a concern. In fact it's probably designed like that so the screws are the weak link (pun intended) if the user forget to remove it.I have nothing negative to say about this product. It's a good addition to your tool box, it's cheap, quick and easy to use. Plus I'm not sitting there second guessing myself if everything is in perfect alignment. I might even take this and put it in my travel tool kit.