Topic: Converting a 1978 cb750f front sprocket to a 530 chain

[greenninja85]

I've been on the Internet all day and cannot find a clear answer for this.  If its already been discussed i'm sorry for starting it again but I need to know.  I have a stock front sprocket for a cb750 k, what does it take to put it on my f model?  Or do I need a special conversion sprocket?  If so who makes and sells them?

Thanks in advance!

[lone*X]

Just go up the the Google Custom Search and search for " 630 to 530 conversion" and you will get a bunch of hits.  Its a well covered subject.

[greenninja85]

Ya like I said I was on the Internet for awhile doing that and using google alot. I found alot of stuff on it but nothing cut and dry. I'm looking for a I did this or bought this sprocket.

[Geeto67]

What ratio do you want?

http://www.ebay.com/itm/530-Conversion-Chain-Sprocket-Honda-CB750K-77-78-18-46T-/320558784522?hash=item4aa2cae00a&item=320558784522&pt=Motorcycles_Parts_Accessories&vxp=mtr

http://www.ebay.com/itm/530-Conversion-Chain-Sprocket-Honda-CB750F-77-78-17-38T-/330449530048?hash=item4cf053acc0&item=330449530048&pt=Motorcycles_Parts_Accessories&vxp=mtr

http://www.ebay.com/itm/530-Conversion-Chain-Sprocket-Honda-CB750F-77-78-18-38T-/330449530101?hash=item4cf053acf5&item=330449530101&pt=Motorcycles_Parts_Accessories&vxp=mtr


I suspect the sprocket for a 750K you have is not for a 77-78 engine, otherwise it is a 630 as well. The problem is that I don't think an earlier sprocket will fit and if it does it won't line up with the rear sprocket.

[Geeto67]

scroll down and read:
http://cyclexchange.net/Chain%20Sprocket%20Page.htm

[greenninja85]

That's what I needed Geeto thank you. I'm gana go with a 18/38