Profi Magnetic Line Laser Chain and Belt Alignment Tool

Probably one of the best gadgets I've ever baught for my bikes. It makes alignment os the rear wheel Childs play, and I feel confident about its accuracy and consistency. The one precaution you have to bear in mind, is the sprocket where attach the laser has to be spotlessly clean, as the the tiniest bit of dry grease or grit will completely throw the alignment out. I may not use it ofter, but when I do, it's quick and easy.

Good bit of kit. Could do with a stronger magnet but, ok!

Awful, followed instruction to the letter and wheel was totally out of alignment. Had to spend almost £300 to replace chain and sprockets. Mechanics recommendation was to avoid. Magnet also very weak, did not stay attached. Only 1 month refund window so cannot even get my money back. Avoid

It's a great little tool to have makes it a lot easier to align up the chain or belt on you motorcycle. I have used it on all 3 of our motorcycle chains much better than the clamp on rod type. Because it uses the bottom run of the chain (as in advert) you don't have to remove the chain gard.

Ideal for bang on chain alignment Especially if you have a few to fix

Cool little gadget, the magnet really needs to be stronger as it barely holds on to the sprocket. For the price it could definitely be improved, but it does the job.

A very good product. Gives a very visible line along the chain run. Downside The 1 I have has hardly any magnetism in it. It will not fix to ANY steel surface let alone the sprocket. Means I haver to manually hold the alignment tool agains the sprocket and then put it down make an adjustment to the tensioners and repeat the process. I will be keeping it but not sure the extra £10 for the magnetic version was a good buy

I’m a professional motorcycle mechanic and got this for clarification of alignment. The on/off is activated and deactivated by twisting the little chrome tube ( it looks like a button on the photo) which is where the battery is located. Turning it simply makes the live or the earth contact which turns the beam on. The magnet is sufficient to hold the unit to the rear sprocket but sometimes you’ll need to physically hold or move the unit to get a reading along the chain length to the front sprocket. I’ve another device again used for alignment but it is fitted to the top of the sprocket which requires chain guard removal whereas this little unit operates on the bottom run of the chain. Probably a tad dear for what it is but the same can be said for Snap-On tools but doesn’t stop me buying them. Worth the purchase if you’re going to use it regularly.