Topic: Will K7/8 750 flanges will fit on cb650 headers ?

[Can550]

Helping a friend to complete his Cb650 which is in need of 4 header flanges, cb550 are small. Will cb750k7/8 flanges fit?
Thanks


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[Nicklopic]

I have a set. The flanges (and the collars probably) from my 650 if your buddy is interested

[Can550]

Thanks I’ll pass him info
It is just so that we can get k7/8 flanges for free, would like to know if that will work.
Appreciated your reply and will contact you if he wants. How much would you want though ? Location ?
Thanks


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[onepieceatatime]

I have a K7 and a cb650. I think I have some flanges for each that are not on a bike at the moment. I'll try to remember to compare them when I get home from work tonight.

[Can550]

I have a K7 and a cb650. I think I have some flanges for each that are not on a bike at the moment. I'll try to remember to compare them when I get home from work tonight.

Much appreciated


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[Nicklopic]

CB650 exhaust flange dimensions:
Bolt spread: ~58mm center to center
Flange thickness at mounting holes: 25mm
Inside diameter: 43mm
Inside diameter of the step for the collars: 49mm
Stem depth from inside flange surface: ~2.5mm
Overall height from inside base to tips of fins: 31mm

[Nicklopic]

If 750s don't work and you'd like mine, I'm located on Long island/New York. I have no idea the going rate would be so just shoot me some offer. If you're in the states I can probably fit them in a flat rate box without issue

[Can550]

Much appreciated Nick
I’ll pass the information to him

Once again many thanks for taking time to measure.




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[onepieceatatime]

The K7 ones will not fit the 650. The flange holes are to far apart to fit the studs on the 650 head. They are also heavier, being steel instead of aluminum.

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[Can550]

Many thanks


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