Topic: SOHC front suspension Geometry CB550

[andrsn]

I'm trying to track down all of the front suspension numbers for a 77' cb550. Anyone have them? Maybe we could start making an index for all the SOHC bikes out there. It would make doing fork swap calculations a lot easier. What I need for my cb550 are fork length, trail, triple tree rake, overall rake, triple tree clamp offset, also tire diameters are nice but too specific to the bike/tire.

Thanks all

[Retro Rocket]

Maybe we could start making an index for all the SOHC bikes out there. It would make doing fork swap calculations a lot easier.

Great idea....

[Brady]

Some of this info is actually in the service manual... this is what i've found recently as i am doing a swap w/ cb1100f fork.

77 CB550f

Caster Angle:
26º

Trail:
105mm

Wheelbase:
1405mm

Fork Length:
??

Fork Tube OD:
35mm

Stem Length:
??   

Front Axle OD:
15mm   

Rear Axle OD:
20mm(right) 25mm(left)

Triple Tree Offset:
48mm (rough measurement- give or take 3 or 4 mm)

[Speedy]

Maybe we could start making an index for all the SOHC bikes out there. It would make doing fork swap calculations a lot easier.

Great idea....

YES! Put this in the FAQ and you can get rid of a bunch of posts (mine included) about front end and fork swaps.  I'll measure all the stuff on my 400F when I figure out what front end to put on!

[JimJamerino]

I could add a little CB650 info to a front end spreadsheet.  I have my standard CB650 fairly apart at the moment and could take measurements.

[CafeDawg]

I know FunJimmy did a swap and has links to front end geometry tutorials.  DOn't know if the specifics will help but this certainly belongs in any front end swap FAQ thread.

Respect
CD

Would help to include link Duh!
http://forums.sohc4.net/index.php?topic=27159.0

[Brady]

just added triple tree offset for the 550 in post above.

[bwaller]

You're very close Brady, that 550 offset is actually 45mm.

[Brady]

You're very close Brady, that 550 offset is actually 45mm.

ah thanks a ton