OEM sprockets?

Post Reply
CBX1000FAN
Forum Regular
Forum Regular
Posts: 25
Joined: Thu Sep 10, 2020 2:39 am
Location: South Atrica
Location: South Africa

OEM sprockets?

Post by CBX1000FAN »

I searched the forum but I see different responses to the question regarding the OEM sprockets (front & back) for the 1978 CBX 1000... Am I correct that it is 18 teeth front and 42 rear? Does this change with a 530 chain conversion? Regards!

steve murdoch icoa #5322
ICOA Member
ICOA Member
Posts: 3762
Joined: Tue Mar 04, 2003 10:12 am
Location: St. Catharines, On. Canada
Location: St. Catharines, On. Canada

Re: OEM sprockets?

Post by steve murdoch icoa #5322 »

You can probably find it closer to home but Bob At CBXPerformance sells a 530 conversion package.
Some info in this thread.
viewtopic.php?f=24&t=11445

https://www.cbxperformance.com/oscommerce/

daves79x
ICOA Technical Director
ICOA Technical Director
Posts: 4203
Joined: Sun Oct 01, 2006 8:05 am
Location: Knox, PA
Location: Knox, PA

Re: OEM sprockets?

Post by daves79x »

Stock '79 sprockets were 15/35 with a 630 chain. '80-'82 were 18/42 with a 530 chain.

Dave

CBX1000FAN
Forum Regular
Forum Regular
Posts: 25
Joined: Thu Sep 10, 2020 2:39 am
Location: South Atrica
Location: South Africa

Re: OEM sprockets?

Post by CBX1000FAN »

Thanks Dave. It seems to be the same ratio of 2.33 then... If I upgrade to a 530 chain the two sprockets will be 18/42 and the actual gearing will not change. Regards!

daves79x
ICOA Technical Director
ICOA Technical Director
Posts: 4203
Joined: Sun Oct 01, 2006 8:05 am
Location: Knox, PA
Location: Knox, PA

Re: OEM sprockets?

Post by daves79x »

Yes, that was Honda's intention - to keep the same ratio. They got it about perfect and wanted to keep it there. Just know that the chain tensioners for the 530 chain (stock on the '80) are a bit longer. If you use the original '79 ones for the 630 chain, adjustment will be more limited, but certainly OK if you can't find a set of '80 adjusters.

Dave

CBX1000FAN
Forum Regular
Forum Regular
Posts: 25
Joined: Thu Sep 10, 2020 2:39 am
Location: South Atrica
Location: South Africa

Re: OEM sprockets?

Post by CBX1000FAN »

daves79x wrote:
Mon Jun 28, 2021 7:51 am
Yes, that was Honda's intention - to keep the same ratio. They got it about perfect and wanted to keep it there. Just know that the chain tensioners for the 530 chain (stock on the '80) are a bit longer. If you use the original '79 ones for the 630 chain, adjustment will be more limited, but certainly OK if you can't find a set of '80 adjusters.

Dave
Thanks Dave!!

Post Reply

Return to “X ...OTHER TECHNICAL: Won't Run, Centerstands, Chains, Fairings, Tanks, Gauges, Petcocks, Seats, Turn Signals, etc.”