Topic: Sissy bar installation help requested

[DaveInTexas]

Thanks to an sohc forum member I now have a sissy bar to install for my wife!
Looking for suggestions on installation now.
See pic.

a) does it attach to the top shock bolt??
surely not the seat, as seen how I hold it near that attach screw?

b)  What about the rear attach bolt and fitting?? Drill a hole in my fender??!

[mkramer1121]

My easilly detachable sissy bar for the 550 mounts to the top shock mount and the grab bar mounting bolt.  I don't have a pic, but you loosen the top shock nut and the grab bar moutning bolt, clamp it over it (mine's notched) and tighten it down.  Maybe I can get a pic up this weekedn if you need one.

[DaveInTexas]

My easilly detachable sissy bar for the 550 mounts to the top shock mount and the grab bar mounting bolt.  I don't have a pic, but you loosen the top shock nut and the grab bar moutning bolt, clamp it over it (mine's notched) and tighten it down.  Maybe I can get a pic up this weekedn if you need one.

thats only two bolts?? Why does it not rotate around them?
Mine has that third bolt at the rear, center...what to do with it?

[Rsnip988]

MOst of them are attached by the top shock bolts where grab bars go...

I dont suppose you can put the sissy bar and grab bar at the same time then....if you could it could explain the center bolt at the back.


if you hooked it to the fender 'd be worried about bending the fender if you actually "needed" the sissy bar


RKS

[Jay B]

thats only two bolts?? Why does it not rotate around them?
Mine has that third bolt at the rear, center...what to do with it?
[/quote

Didn't see a pic come through. I don't recall seeing one that bolts through the fender. Maybe it's a bracket for a luggage rack, like in a sissy bar/luggage rack combo.

[DaveInTexas]

promised pic, what do you think?
Modifications needed?

[mkramer1121]

From your pic, mine uses the top shock bolt, and the one that holds the fender on/grab rail on/etc (one above the turn signal).  It doesn't move when bolted down. 

[BobbyR]

Mine goes through the shock mount and uses a long bolt which goes through the grab rail and the turn signals.

[mwvachon]

Dave,

It appears you have either a K0 or K1 model there [correct?] Unfortunately, the grab rail that others are referring to did not exist on these two models - only on K2 or newer models. I would definitely NOT try to attach the brackets marked as #1 to the fender itself - it is not load bearing! The forward 'legs' of the sissybar definitely go just under the top shock acorn nuts. Be sure to use a proper washer between the bar and the acorn nut so they stay firmly in place. As for the #1 brackets, I think you have a couple options here. You could scout out a used K2 (or newer) grab bar (will bolt right on, you will just have to swap out your OEM turn signal mounts with a pair of K2 mounts - if the grab rail doesn't come with them) If you're uncertain on how the grab bar goes on follow this link http://www.rochestermotorsports.com/ and look at the on-line microfiche for both the K1 and K2 CB750 models. The #1 brackets will obviously have to be twisted to line up with the mount points provided on the grab rail. The only other option is to either modify or fabricate a bracket that connects to your existing rear turn signal mounts. It's the only solid/stable place to get that sissybar mounted with any kind of support.

[DaveInTexas]

sounds like a reasonable approach, MW - thanks!

[ben1979cb650]

I'm glad I found this discussion thread. I'm in a real bind - about to leave on a road trip and unable to successfully mount my sissy bar.

Bike: 1979 Honda CB650

Sissy Bar: Purchased along with the bike, not mounted, told it was "original".

I iniitally attempted to mount the sissy bar to the bike and it looked like it would work. It seemed that the rear mounting hole on each side should go onto the bolt where the rear attach-point for the grab bar is. It also seemed to me that the front mounting hole on the each side should go onto the bolt where the rear suspension pivots are. This almost works, but the fit is just not right. Specifically, the front mounting extension is too wide, and the rear mounting point seems a bit too narrow.

Q1: Should I first remove the grab bar and mount the sissy bar only, without the grab bar? Or does the grab bar go back on over the sissy bar?

Q2: Do I need extra mounting hardware, some sort of spacer-nut maybe for the front pivot points?

I'll try to take some pics and upload those, but that'll take a while and I'd appreciate any suggestions in the meantime.

Thanks!

[mkramer1121]

My bar for my 550 mounts the same way, and seems too tight one way and too wide the other, however, if you bend it in up front and bend it out out back, it fits perfectly.  Its pretty flexible considering its just 2 pieces of tube that mount to the cushion separately.

[Faol]

I was glad to see this thread too. I have an embarrassing collection of sissy bars from a couple of years of EBay, none of which easily fit my 1979 650.  I mean, sure they make lovely garage decorations, but there is a limit . . .

The couple that seem like they could fit would require removal of the grab bar, which would be cool except that it's what secures my turn signals. I think 79 was the only year with this particular "feature" - I picked up the signals for a later year because they came on the taillight/plate holder piece. It's still on the shelf though - I've been preoccupied with things like "Start, damn you!"

Lee

[Kevin D]

Dave, this sissy bar will fit a K0 or K1, or later models I think if you take off their grab bar. This fits to the shock mount and the turn sig mount, nice and strong. It was made by Triple A accessories who I think are long out of business. If you shop around you may find one with the scroll decorative detail which are more common and were made by the same folks.  I have seen some other models (350/450?) that used the tail light bracket for the rear mount.

[Dougy Dougy Dune Buggy]

Don't do it, have her wrap her legs around you!