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Offline wolverex

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CB400X to CB500X
« on: March 12, 2020, 03:41:54 PM »
For purely discussion's sake, do you think it's possible to convert the Japanese CB400X to a 500X?
Seems like pistons, connecting rod, crankshaft, balancer are different. electronics: ECU and meter appear to be different.

Offline JMo

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Re: CB400X to CB500X
« Reply #1 on: March 12, 2020, 09:17:55 PM »
I think you've answered your own question: possible - yes; financially realistic and worth the hassle? - almost certainly no.

You'd be better off selling the 400 and buying a 500, not that it's going to be appreciably different other than a little more mid-range [torque] perhaps...

Another option would be to source a secondhand 471cc engine & loom/ignition module from any of the other CB models and swap it over - but again, what would be the point unless your 399cc version needs replacing?

And fundamentally perhaps, would you be able to register the 500 engine'd version in a country where the 400 is the domestic market model?

Jx



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Offline motorboy

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Re: CB400X to CB500X
« Reply #2 on: March 13, 2020, 03:14:00 AM »
From what I have read there is only a one HP different between the two bikes-sure the 500 has more torque but the 400 revs higher
It's not a big motorcycle just a groovy little motorbike

Offline wolverex

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Re: CB400X to CB500X
« Reply #3 on: March 13, 2020, 05:54:39 AM »
I've ridden both, not sure about the higher rev but the 500X has more usable power in the higher revs

 


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