Chain/sprockets

Sorry!! Partzilla says 84 links!! Google give me wrong answer!!

84 links x 6/8" between links = 63"

Stock gear ratio = 33/13 = 2.54

13T (630) + 3T (for 530) = 16T front sprocket

2.54 x 16 = 40.6 (use a 40T rear sprocket)

63" chain / 5/8" distance between links = 100.8 links (use 102, since it's necessary to round up to an even number)

One possible change, use a rear sprocket with less teeth.  Maybe go to 38T, if you want a lower cruising rpm on the freeway.

www.z1enterprises.com/530-jtf513-series-16t-fr-sprocket.html
www.z1enterprises.com/530-jtr488-series-38t-rr-sprocket.html

Thank you very much, if I go to a 530 upgrade, do I will need to shim the front sprocket ? Or it fit like the bike was born with the 530 kit ?!

Both 530 and 630 sprockets are the same width.  The 3 in these sizes equals 3/8" wide rollers

Ok!! Will I gain some Fuel mileage or performance with 530 kit ?! Because my chain is like brand new!! I don’t know how much a new kit will cost me for the benefits.. 

www.gearingcommander.com/ offers you a lot of option to calulate your final drive ratio.

 

Thank you!! So you think the clearance for a 530 16T in front will fit,instead of 630 13T ?! I will not need to cut the engine case ?! I already published a picture of what clearance  I have before..

Maxbou92 wrote:

Thank you!! So you think the clearance for a 530 16T in front will fit,instead of 630 13T ?! I will not need to cut the engine case ?! I already published a picture of what clearance  I have before..

A 16T 530 sprocket is the same diameter as a 13T 630 sprocket.  

If you have the room, you can move to 17T front.  That will reduce your road rpm a good bit.  

You know a lot of things man!! So, add 1T takes how much clearance?! 1/8”- 1/4 “  ?!  I cannot find on ebay or Z1entreprise a set of 16-38-36 530chain!! I see 40-42-44 T, I will call my  shop to see if he can have these sprockets for these old bikes!!!! 

By Maxbou92:  ... Will I gain some Fuel mileage or performance with 530 kit ?! Because my chain is like brand new!! I don’t know how much a new kit will cost me for the benefits..

What do you mean the chain is like brand new? It looks new or it was recently purchased or what? 
Changing the 630 sprockets to a different ratio can improve the mpgs, so you don't have to go w a 530 for that benefit.
In general it's best to replace the chain & sprockets together which is a good time to switch to a 530.
Whatever you go with, install the largest Fr sprocket that will fit >> this helps extends the life of the chain. 

ps:  If the chain is new & new condition, I would just get the 630 sprockets. unless you're accustomed to selling stuff on EB or elsewhere, then you could sell it.
 

I have a question, I bought the 630 conversion kit from Z1 Enterprise and it came with a 110 link chain 18t front sprocket and a 42t rear sprocket this is going on a 1976 KZ900. Will that combination work? One more question does any one know what the spline is on the sprocket shaft? The front sprocket is a Z-13 spline from Z1 Enterprise. Thanks for the help.
 

Rick72 wrote:

I have a question, I bought the 630 conversion kit from Z1 Enterprise and it came with a 110 link chain 18t front sprocket and a 42t rear sprocket this is going on a 1976 KZ900. Will that combination work? One more question does any one know what the spline is on the sprocket shaft? The front sprocket is a Z-13 spline from Z1 Enterprise. Thanks for the help.

 

The sprocket teeth count and chain length sounds perfect.  I don't know about the spline pattern.