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Author Topic: 1979 DOHC CB750F 630-530 sprocket - chain conversion  (Read 176 times)

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Offline mrmach5

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  • 75 Honda 550k, 78 750K, 80 750F, 83 1100F
1979 DOHC CB750F 630-530 sprocket - chain conversion
« on: October 31, 2025, 06:41:38 AM »
Sorry I know this is the SOHC forum but thought I would post this here as well as the DOHC forum.
This is a 79 CB750F
Looking to change out sprockets and chain and would like to convert from the heavy 630 stuff down to a 530 chain . At the same time I would like to change up the gear ratio as this bike feels like it could have used a 6th gear. Currently over 4K at 50Mph.
Anyone made this change, and ratio's your happy with?
Thanks
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Online pickleknuckles

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Re: 1979 DOHC CB750F 630-530 sprocket - chain conversion
« Reply #1 on: October 31, 2025, 10:24:34 AM »
I have zero input but I've been thinking about doing the same gear change on my '74. Feels like it's screamin doing anything over 50mph.

I actually sub'ed to your post over on cb750 dot com earlier.
« Last Edit: October 31, 2025, 10:26:40 AM by pickleknuckles »
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