As issued by Honda, the Rebel has a 108 link 520 chain with a 14 tooth front sprocket and 33 tooth rear. Some here have gone to 14/30 15/31, etc. It doesn't improve mileage or top speed, just changes the gear ratios.

 

well the manual I have for the 86 87 rebel 450 tells me to get a D.I.D. 525V chain but doesn't say the number of links it needs. whats the difference between 520 and 525?

 

Another reason to put your bike info in your signature. I see you had it in the title, but I missed it. I assumed you had a Rebel 250 and gave you the info for that bike. The 525 chain is heavier than a 520. A 520 chain won't fit a 525 sprocket and vice versa.

If no one here can provide the correct number of links, you can count the links on the old one.

 

The Rebel 450 does use a 525 chain. The Rebel (250 implied) has the 520.
The difference is the width of the rollers.

 

A typical generic chain will have to be shortened to fit anyway. You can just fit it up, mark the break point and break it with a chain breaker if you have access to one, or with a grinding wheel (much more tedious) if you don't.
I like to break the old chain and then pull the new one into place using the master link hooked to the new one.

 

Hey sorry I just changed my signature to have my bike in it. I did put cmx450 in the subject line but its pretty small.

OK great if nobody can tell me the number of links and the stock sprocket size I'll just count them on my bike.

Thanks to the both of you!

 

Stock for a 450 is front 17, rear 37 with a 525 chain, length 112

JT Sprockets: Catalogue

and heres a complete listing of gear ratios

http://www.jtsprockets.com/fileadmin/files/jtgearratio.pdf

 

The chain you get will come with more links than you need. You will need to remove a few to get it to the correct (112 or whatever it is) length.

I see you found the answer on your own pretty quickly.

I recommend that all 450 owners buy a service manual. It can answer all those technical questions quicker that a forum member.

As a result the rest of us forum members don't feel like we let you down b/c you didn't get your answer as quick as you expected. And you are guaranteed to get the correct answer too!