Topic: 650 swing arm on a 550

[Scott S]

 I read a little about this a while back but can't seem to find the threads using search today.

 I know you have to drill out the 550 frame for the larger 650 swing arm bolt.

 I have some 550 axles, so I can check this myself later, but does anyone know if the 550 axle fits the 650 swing arm?

 What about the brake rod stay? I have a couple of 550 stays....were the 650 stays longer?

 Lastly, I assume you use the 550 brake pivot and rod? Will it be long enough?

[Scott S]

 Found out that the brake stay is the same (Thanks, Tom!). Now...to go dig out the pivot and axles I have and take some measurements.

 I'm pretty sure I have to use the 500/550 brake pivot and rod to match the 550 frame. I think the 650 mounted differently.

[Scott S]

 The hole in the 550 frame is 14.5mm. The 650 swing arm bolt is 15.8mm.

 How much clearance around the bolt should there be? Does anyone have a 550 swing arm bolt they can measure so I can see how much clearance Honda left in the frame for the bolt to pass through?

[Retro Rocket]

Why do you want to use the 650 arm Scott...just curious...

[Scott S]

 Because I have one.

 No, seriously..... I find myself with enough parts to build another "Sweep The Floor" bike from spare parts and I have a bare CB550 frame and a complete CB650 swing arm, so I figured "Why not?".

 I know it's longer, but this will be another Frankenbike and I don't really care. Sort of a BratStyle or Wrench Monkeys type theme.

[Retro Rocket]

Cool...