Acerbis Chain Guide Block 2.0

I bought this chain guide for my 2007 CRF450R and it came with all required nuts and bolts to mount directly onto the swing arm bracket. Fits perfectly and works like a charm!

Yes, it does come with the wear pad and block. I believe you can also purchase new wear pad once the original wears out. The wear pad fits in the bottom of the bock and there are set screws that you can access from the bottom of the block, to pull out the old one and put the new one in. You do not have to pull the entire block off to replace the wear pad, which is a nice feature.

Yes, I am. My bike (12 CRF450R) came with a 48T from the factory. I am currently running a 49T, but have run up to a 51T. This is the best chain guide I have ever used, and I've tried quite a few to include the T.M Designs.

i only use a o ring chain on my 2006 RM 250 since 2008 when the original one wore out. and and this replaced it just fine

Not 100% sure. I ran a 51 tooth on my previously owned kx450. Might have to try lower guide block a little but only guessing.

It will last a while if you start out with a fresh rear sprocket and chain. If your drive is already worn out, you will wear out this and all aftermarket chain blocks very fast.

Yes this will fit a 2022 KX450.

To see if this part will fit your machine please enter the make, model, and year into our "Choose a vehicle" drop down boxes found above the product image. If your machine is not listed, we may not carry the right item for your application.

Standard rear sprockets are always around 48-52T so around there. We do not do testing on bigger rear sprockets.

Unfortunately, this part does not fit on a 1997 Suzuki RM125. We apologize for the inconvenience.