006 Sissy bars...

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Prof
Founder, Choppers Australia
Posts: 5884
Joined: Sat Oct 22, 2005 3:54 pm
Location: Willunga, South Australia
Contact:

006 Sissy bars...

Post by Prof » Sun Aug 30, 2009 7:52 pm

CB 750/4...
Steve asked for a classic three pronged sissy bar 16" higher than top of his passenger seat. His chopper is a Honda CB 750/4. Instructions were given over the phone and the sissy bar was made on a CB frame kept here for this kind of job.

I suggested I make one that could be removed/added very quickly and to do it in stainless to save chroming. Both suggestions accepted by Steve and he is very happy with the result...

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If you look closely you can see that the front mounting is slotted horizontally and the rear is slotted vertically. To attach, four nuts simply need to be loosened and bar slipped forwards and down, nuts then tightened. Takes less than 2 minutes to attach or remove. Stainless was polished in house.
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'95 virago...

This is part of a rear end rebuild that includes rear guard and taillight. Henry wanted to retain his existing sissy bar and needed to be able to quicklly remove it with the possibility also of having a couple of interchangeable sissy bars...

A piece of solid round bar was machined for one end to fit into frame tube and the other to fit into Henry's sissy bar. Round bar was then bent to correct angle. Sissy bar will be held in place on each side with a small screw, that threads into the round bar...
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Detail of parts shows slash cut in frame tube so if no sissy bars to be used a matching plug can be put in in their place. You can just see the hole where one of two socket head bolts holds curved sissy bar mount and mudguard.
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A very short sissy bar is likely to be used to mount a diamond taillight and number plate. Assembly will be easily transferable to taller bar when needed.

81XV750...
Part of a complete chop job. Rear frame has been chopped off and a new one made with a cut down 80's HD rear guard. bottom cross bar on sissy bar doubles as a mudguard mount and rear seat mount. Sissy bar is made from 5/8" stainless round bar... will be polished to a high shine. All bends in stainless were done cold around a jig. Holes in rear of frome tubes will be closed with push in steel balls, which also adorn forward controls and a couple of other parts.

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Guard mounted sissybar...
Owner wanted to use a ducktail guard with steeply leaning brackets, but with a guard mounted pillion pad and sissy bar.

Guard was reinforced with 75mm x 5mm flat bar underneath. Sissy bar bolts go through the guard and screw into the reinforcing bar. Pillion pad mounts on sissy bar and is itself quickly removable using a unique spring mounted catch we fabricated.

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Unfortunately this is the only pic we have from the front. a piece of 3mm plate was welded in with a downward facing 'leaf' curving to the rear that matches similar designs on the rest of the chopper such as under the springer front legs, engine mounts etc
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Chopit'nrideit... Prof

Prof
Founder, Choppers Australia
Posts: 5884
Joined: Sat Oct 22, 2005 3:54 pm
Location: Willunga, South Australia
Contact:

Post by Prof » Mon Aug 31, 2009 8:02 pm

Sportster sissy bar...
This sissy bar supports a high back seat which is held at the top of the sissy bar with an internal lock.

Sissy bar is made from cold bent 5/8 stainless round bar.
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Sissy bar slides into ends of subframe and is retained by a stainless 1/4"UNF button head on each side.
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Pannier bracket is also made of stainless and detaches by loosening the shocker bolts and removing a bolt form the topof the rear guard.

XS 650 seat stay/sissy bar...
This was an impromptu, budget job. The guard started falling off on a run, so the owner came back to the Chopper Shed and we looked around to see what we could find and started fabricating!

The chopper before...

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The offending guard and pieces...

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What we came up with. We cut up a stainless 4WD spare wheel cover. the trick was to triangulate the bracketry to it wouldn't sag under the waieght of a passenger... so we bent up a piece of 100 x 3mm mild steel to fit under the guard.

A bracket across the top of the shockers provided one mounting point and then by running a sissy bar guard bracket in behind the shockers to a lower point on the rear sub frame (see next pic) we were able to get our triangulation. We had some fun getting it all straight as the shocker mounts were at differnt heights and distances back on the frame!!

The hole in the centre of the rear sissy bar bracket is for a pin and clip that retains the seat.

All was made from stainless (30mm flat bar and 1/2" round bar) and given a basic polish.

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We finished VERY late that night, but after a couple of years of riding mostly with a passenger, our quickie budget job is still perfect!

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Chopit'nrideit... Prof

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