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Author Topic: My CB450 Cafe racer seat build - **No Welding**  (Read 127960 times)

Offline locO leoN

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My CB450 Cafe racer seat build - **No Welding**
« on: Jan 08, 2008, 17:41:14 »
So as I lay sick in bed with the flu TWICE this Christmas/NewYears holiday I realized that I havent contributed anything REALLY useful to our forum lately other than a bunch of smart alexy one-liners, etc..etc.. So I decided that I should do my part and do another seat build..

As you all know I got a cb450 in December, ( http://dotheton.com/index.php?topic=2478.0 ), so today I decided, lets start there and build the "signature" cafe racer seat ;D...its something I can do indoors...

Of course Im gonna use the old mething of  chopped back end of a tank, ( http://dotheton.com/index.php?topic=736.0 ), however, Im gonna do it the rphilli550 way and do it without  any welding what-so-ever.

In other words, Im gonna do it super cheap, and super quick and show that it can be done by anyone with a drill and a bunch of nuts and bolts...

In my other cafe racer seat builds I outsourced some of the work. I had the leather done by a taylor and the welding done by a welder.

This time, Im gonna do it all myself proving it can be done without any specialised expertise ;D

So, here's what I started with.  A perfectly flawless brand-new cb450 seat... Hell, if I want to make a perfect Cafe Racer seat, I may as well start with a perfect OEM one... Cost me $0, (came as part of the bike)





So after I took off the outside chrome trim and pulled the leather off, I wasn't surprised to find a perfect rust free pan and foam.
Earlier, in the summer I chopped, primed & painted a cb360 tank for the cowl. So here is what Im starting with:
Cost of the tank $5 at a swapmeet



Next step is to cut and trim down the foam...

« Last Edit: Jan 08, 2008, 17:55:53 by locO leoN »

Offline Tim

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Re: My CB450 Cafe racer seat build - **No Welding**
« Reply #1 on: Jan 08, 2008, 18:23:50 »
Sigh.  No matter how hard I try to teach you basic economics.  You could have sold that seat for more than enough to buy a proper seat pan, or a dozen crappy 450 seats to hack up.
"Quality . . . you know what it is, yet you don't know what it is. But that's self-contradictory. But some things are better than others, that is, they have more quality. But when you try to say what the quality is, apart from the things that have it, it all goes poof! There's nothing to talk about. But if you can't say what Quality is, how do you know what it is, or how do you know that it even exists? If no one knows what it is, then for all practical purposes it doesn't exist at all. But for all practical purposes it really does exist."

Offline Druro

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  • Noel... stay outta my profile... wanker.
Re: My CB450 Cafe racer seat build - **No Welding**
« Reply #2 on: Jan 08, 2008, 18:42:28 »
He never said he was smart.

and come to think of it...  neither did we...  and we won't! 

HEY...  stop mucking up nice parts.. that i could buy for cheap money off ya.

Offline HerrDeacon

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Re: My CB450 Cafe racer seat build - **No Welding**
« Reply #3 on: Jan 08, 2008, 18:44:05 »
I can't believe how good a condition the seat and pan are in, they look brand new. Can't wait to see how this progresses, good stuff. I'm going to be starting mine later this month so I'll be looking for ideas.  ;)
Perry

1972 Honda CB350 K4 / 1978 Honda XL250S /1982 Honda MB5 / 2014 Honda CB500X

Offline locO leoN

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Re: My CB450 Cafe racer seat build - **No Welding**
« Reply #4 on: Jan 08, 2008, 19:44:37 »
LOL... HARDY HAR HAR!!.. ;D

Ok.. So Im now ready to shave the foam.
I just ouline where Im first gonna cut, and its gonna be the edges to go over the side of the seat pan.
I just use a black marker:



Then I mark the foam where the cowl is gonna be and just lop off the back foam with a large bread knife..
Its surprising how Foam and stale italian Bread have the same texture:



Now I just mark where Im gonna trim for the seat height then cut


Heres the seat foam now nicely trimmed:


Then I just cut the thin top floam and put it on top of the bottom foam...
I'll glue them together later before I leather..

Heres a pic of the cb450 seat next to the other cafe seat Im building for my cb550f:


Next stop is mounting the metal cowl... ;D.. After dinner that is...Im a HUNGRY MAN!!
« Last Edit: Jan 08, 2008, 19:46:24 by locO leoN »

Offline locO leoN

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Re: My CB450 Cafe racer seat build - **No Welding**
« Reply #5 on: Jan 08, 2008, 22:51:13 »
OK so using the drill & work bench, I drill 2 holes on either side of the cowl, 1.5 inches apart:



With the holes in the cowl, I mock up where I want the  cowl to go, mark where I need to drill the holes on the seat pan then using the workbench to hold the seat pan in place, I drill.

I mount the cowl with some temporary screws that have laying around, ( untill I get some nice ones at Crappy Tire) and voila!!

Here is the seat with the cowl mounted for now:





Now I"ll just prepare to make the bump stop on the front using high density floor foam... ;D

« Last Edit: Jan 08, 2008, 23:50:00 by locO leoN »

Offline Gordon

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    • Cafe Racer Projects
Re: My CB450 Cafe racer seat build - **No Welding**
« Reply #6 on: Jan 09, 2008, 05:34:01 »
Noel?! Why is the cowl wayy behind?! Are you making it two-seater?!

I guess not welding the cowl onto the seat pan is a better option. Since you can actually:
  • make it removable,
  • OR change the cowl later,
  • OR remove it completely if you're bored of it.

Also, how high do you reckon the cowl should be?! I feel it shouldn't be higher than the height of the tank, because it'd look ugly overall.

And damnnnn, that was SUCH a good seat you messed up. "HEY...  stop mucking up nice parts.."
Gordon

Offline locO leoN

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Re: My CB450 Cafe racer seat build - **No Welding**
« Reply #7 on: Jan 09, 2008, 14:56:07 »
Noel?! Why is the cowl wayy behind?! Are you making it two-seater?!

Also, how high do you reckon the cowl should be?! I feel it shouldn't be higher than the height of the tank, because it'd look ugly overall.

Actually Gordon, it is 16 inches of seating space. The standard Carpy cafe seat and a Giuliari seat has about 17 inches of seating area.
I guess is looks longer in the pics.

In terms of how hight the cowl should be, it depends on the style you want and what you want to put inside it, (tool kit vs. battery & Electricals). The British Manx seat cowl is very low vs. the Dunstall or Richmann seat cowl which seems to be taller than the tanks from the same kit.

I dont think there is any black and white rule...personal preferrence I guess.. For example, have you seen TinTin's custom seat for his xs650?.. It has a build in sissy bar ;D

Offline DME

  • Posts: 19
Re: My CB450 Cafe racer seat build - **No Welding**
« Reply #8 on: Jan 09, 2008, 16:28:08 »
Personally I find it hard to watch a new part get hacked up and customized.
Im all for modifying stuff but there are som many damaged parts out the to use instead of new stuff  :'(
Well, we can all do what we want with our own stuff but I just felt I had to speak my mind.

Cheers
Dan
Pics of my CB 750 Caf and FZR 1000 Fighter:

http://gallery.sohc4.net/main.php?g2_itemId=5120

Offline DrJ

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Re: My CB450 Cafe racer seat build - **No Welding**
« Reply #9 on: Jan 09, 2008, 16:39:11 »
Personally I find it hard to watch a new part get hacked up and customized.
Im all for modifying stuff but there are som many damaged parts out the to use instead of new stuff  :'(
Well, we can all do what we want with our own stuff but I just felt I had to speak my mind.

Cheers
Dan

Rattlecan Noel strikes again  :(