Honda-SOHC

SOHC.co.uk Forums => CB500/550 => Topic started by: Scotty67 on July 22, 2021, 08:55:27 PM

Title: CB500 Frame differences U.S. vs UK
Post by: Scotty67 on July 22, 2021, 08:55:27 PM

Hi there. Apologies in advance if this question has been asked already, I did a search on 'frames' and a lot came back :D.

Anyone  know of any frame differences between a UK bike registered 01 Jun 1972 and U.S. frames 1971-176?
Thanks,
Scott

Title: Re: CB500 Frame differences U.S. vs UK
Post by: Trigger on July 22, 2021, 09:23:34 PM

The UK and USA  500 frames are the same and the 500 frame was also used on the USA 550K0, K1 and K2 as far as i am aware  ;)

Title: Re: CB500 Frame differences U.S. vs UK
Post by: Scotty67 on July 22, 2021, 10:56:41 PM

Fantastic, thank you!

Title: Re: CB500 Frame differences U.S. vs UK
Post by: Scotty67 on July 22, 2021, 10:58:22 PM

PS. The 500 I bought came with a spare 550 engine. I assume that will bolt in OK? Cheers Scott

Title: Re: CB500 Frame differences U.S. vs UK
Post by: Trigger on July 22, 2021, 11:14:28 PM

It will fit but, the rear engine bracket is different on the 550 and don't expect anymore power as both engines are rated at 50 BHP  :o

Title: Re: CB500 Frame differences U.S. vs UK
Post by: Sesman on July 23, 2021, 06:40:23 AM

Does a 550 motor produce more torque? I seem to recall all the mags at the time lauding the 550 as a significant riding improvement over the 500 motor? Maybe just the usual journal hype. I’ve never ridden either, though hope to have mine on the road this year.

Title: Re: CB500 Frame differences U.S. vs UK
Post by: Scotty67 on July 23, 2021, 07:08:28 AM

Thanks Trigger!

Title: Re: CB500 Frame differences U.S. vs UK
Post by: Bryanj on July 23, 2021, 08:08:53 AM

Gearbox, gearchange and clutch operation were biggest changesplus crabkcases casting had slight difference so primary chain does not hit oil gallery quite as much