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Author Topic: Chains? sprockets??  (Read 945 times)

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Offline dgilling

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Chains? sprockets??
« on: April 16, 2014, 03:45:07 PM »
I can't believe how many different opinions there are online about different chain/sprocket setups.  I'm super confused by this point and basically want someone to pick my parts for me.  I have a 77 CB750k.  My stuff is wore out.  I believe I found that the stock setup was a 630 chain with 15/41 sprockets.  Is that true?  My bike does run a little high in the RPMs at 65mph and I would like to improve that.  I'm not a cafe racer and I don't ride the bike a ton.  I just like a good ol sunday cruise.  I see a lot of guys go to 530 chains but some say to stick with 630, what's the real answer here?  is there anything special I'd need to do other than buy 530 chain with 530 sprockets to convert?  Where are you guys buying your chains and sprockets as well?

This is what I'm thinking, a regular 530 chain (no o-rings or special tools needed) with steel front sprocket/aluminum rear and a ratio that cruises good at 65mph.  Thoughts? Blessings?
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Offline flybox1

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Re: Chains? sprockets??
« Reply #1 on: April 16, 2014, 03:53:32 PM »
a 530 chain is plenty, 110 link,  (not x/o-ring)
DID is a good brand ~$40 for a standard chain
RK is another good brand.
I went with a 17/48 set of JT sprockets and an RK 530 Heavy Duty chain.
« Last Edit: April 16, 2014, 03:57:21 PM by flybox1 »
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

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Offline Don R

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Re: Chains? sprockets??
« Reply #2 on: April 16, 2014, 04:15:29 PM »
I like the 18/48 for easy cruising, it takes the edge off the rpm's.
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Offline 70CB750

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Re: Chains? sprockets??
« Reply #3 on: April 16, 2014, 05:41:43 PM »
I like 17//48 because it moves when I want it to - and I am 250+ pounds.

530 chain is plenty for the bike.
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Offline Duanob

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Re: Chains? sprockets??
« Reply #4 on: April 16, 2014, 08:15:18 PM »
I got a package deal from these guys:
http://www.powersportparts.net/SearchResults.asp?Search=jt

JT sprockets and a japanese 530 chain ( dont remember the brand but its 2 years old and still in good shape)  for a good price delivered.
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"Just because you flush a boatload of money down the toilet, doesn't make the toilet worth more",  My Stepfather the Unknown Poet

1974 CB360T
1976 CB550K2 Resurrected
1976 CB550F2 Barn Find
1979 CX500 VG "HONDA-GUZZI"
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Offline dgilling

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Re: Chains? sprockets??
« Reply #5 on: April 16, 2014, 09:29:12 PM »
This is exactly what I needed. I'm going 530 chain with the ratios mentioned above. Will I need special tools for a non-oring chain?
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Offline PeWe

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Re: Chains? sprockets??
« Reply #6 on: April 17, 2014, 02:09:01 AM »
You need a riveting tool if the chain has a rivet link as most of the o-ring/ x-ring chains have
Solid rivet link need very powerful tool like on branded Whale. Hollow rívet link is easier whith plenty of cheaper tools.
Clip link no specific tools except what you probably have, screwdriver + plier
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Offline flybox1

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Re: Chains? sprockets??
« Reply #7 on: April 17, 2014, 11:53:18 AM »
Quote from: dgilling on April 16, 2014, 09:29:12 PM
This is exactly what I needed. I'm going 530 chain with the ratios mentioned above. Will I need special tools for a non-oring chain?
nope.  standard chains typically come with clip-type master links.
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline dgilling

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Re: Chains? sprockets??
« Reply #8 on: April 17, 2014, 12:56:12 PM »
how about the rear sprocket material? Alloy or steel? Does alloy wear faster than steel?
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Offline Duanob

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Re: Chains? sprockets??
« Reply #9 on: April 17, 2014, 12:59:03 PM »
Original was steel, why not go steel unless you're making a race bike and every lb counts.
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"Just because you flush a boatload of money down the toilet, doesn't make the toilet worth more",  My Stepfather the Unknown Poet

1974 CB360T
1976 CB550K2 Resurrected
1976 CB550F2 Barn Find
1979 CX500 VG "HONDA-GUZZI"
2007 Moto Guzzi Breva 750ie
2015 BMW F700GS
Another 1976 CB550K Cafe?

  __o
_- \_<,
(*) /' (*)

Offline dgilling

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Re: Chains? sprockets??
« Reply #10 on: April 17, 2014, 01:10:03 PM »
also, is this the type of standard chain we're talking about?  it says 400cc max.

http://www.bikebandit.com/rk-530-rk-m-standard-chain

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Offline dgilling

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Re: Chains? sprockets??
« Reply #11 on: April 17, 2014, 01:19:22 PM »
I guess a better question is what tensil strength do I need?
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Offline Pat_at_APE

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Re: Chains? sprockets??
« Reply #12 on: April 17, 2014, 04:32:33 PM »
Considering modern materials and that 1000cc+ bikes now use 530 chain I wouldn't worry about tensile strength with our hp output. 

I'm using 530 chain and the next time I get sprockets I'll get 17 and 47t.  It's lasting great so far.

Regards,
Pat at APE
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