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View Full Version : cb750 70's chopper!



Trapper
02-11-2010, 11:11 AM
I got this cb from a buddy of mine, it needs some love and care but I'm totally stoked on what the final product will look like. Almost built my xs650 into a long bike, glad I didn't. Harman front end, 21" with a minidrum, drag specialties king n' queen, octogon oil bag, came with a low tunnel sporty tank but will have a prism tank when all is said and done... Now if I can just keep focused on the xs I'm in the middle of.

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oldmansporty63
02-11-2010, 11:29 AM
looks great. good luck with it.

HWC
02-11-2010, 1:05 PM
hell yeah!!!
bad ass man
if u cant find a tank to suit,,i can build u one to fit

wllgmr
02-11-2010, 2:05 PM
nice project you got there.

Brandon
02-11-2010, 7:48 PM
most excelent score there friend. Is that a mini drum up front?

Punkskalar
02-11-2010, 10:20 PM
That thing will require two hits of acid before painting it! Cool

Trapper
02-12-2010, 10:29 PM
thanks for all the good feedback, this thing has overtaken my brain. The paint will definitely be out there, i'll have to be in that right mind if ya follow. It is a minidrum up front that is needing a few things to be tip top. Good news is that the rockers are movin on the front end and i've got marvel oil soaking on top of the pistons.

JPWilliams
02-13-2010, 3:38 PM
Nice I what to build something like that next.

turtle
02-13-2010, 8:53 PM
Buddy ,you should adopt him! CB 750's did more for choppin than any other bike in history! the girder is so fine! Enjoy brother

DaveyRiot
02-14-2010, 2:19 AM
love that front end

ChristianD
02-14-2010, 9:57 PM
Cool bike! Looks like the one Im working on.

Trapper
03-19-2010, 8:19 PM
Been a while so here's an update. The engine is officially un-seized, and has been soda blasted to get the crusty crinkle paint gone. Bill over at Executive Choppers was kind enough to not only help me out with getting the proper lower tree/stem, but also emailed me some pics of a cb they have in their shop that confirmed the frame was built by Harman as well. So here I am fuckin stoked to be building my own Harman chopper. Also I had the frame blasted and the cracks were welded up by my pal Kelly @ http://haifleybros.blogspot.com , I found a cute little 17" front with a minidrum at Goodguys last week, and my buddy Brains sold me a prism tank he picked up off of craigslist this morning. And last but not least, it looks like I am selling a pile of hot rod parts this week that will provide the dough for my carb kits, electronic ignition, rear tire etc...




And now my computer is being a shit, so I 'll have to post this, restart, and post some pics.

revmike
03-19-2010, 8:28 PM
Trapper, hopefully you can post up some pix of the stripped down frame if you have some. Interested to see that.

Gonna be a great bike.

~Rev Mike

Trapper
03-19-2010, 9:05 PM
It's funny you should ask, I took a few while trying to figure out the builder.
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I realized I hadn't posted any of these.

Honda chopper and other stuff here... sometimes
http://coalitionimagery.blogspot.com

jpswino
03-19-2010, 11:42 PM
Very cool. I'm digging it.

revmike
03-20-2010, 11:25 AM
Interesting single post frame. That has just a fantastic and classic stance. You could put damn near any tank and seat on it and it would stand out, just from the design standpoint....

~Rev Mike

ironlance
03-20-2010, 3:11 PM
cant go wrong with a Harman front end!!

PickupMan92
03-23-2010, 3:08 PM
*subscribed* I can't wait to see this thing finished.

Trapper
03-30-2010, 8:22 PM
Update time!
It's been an eventful couple of weeks. As of right now the dyna electronic ignition is installed, I picked up an Avon 16-5.00 rear tire, a 17" front runner with a mini drum and rideable rubber (now I can swap back and forth with the 21"), the carbs are disassembled and being rebuilt, dyna coils and wires are headed my way from lowriders by summers, stainless spoke and nipple set for the rear (the rear hub is coming back from the polisher this week too), and finned clutch cover are coming from ebay auctions. I picked up this killer fiberglass rear fender that my friend Chris is going to mimick and build out of steel for the rigid frame, some spoon passenger pegs and shorter prism tank from the Shrine swap on sunday. Also, I picked up a ridiculously badass king/queen from a buddy that sends this thing over the top (pictures to come). I have been swapping the tanks back and forth for the last couple days and can't get my brain around which is "right" on this bike. The day I got the short tank I was ready to turn around and ebay the thing, then yesterday it looked a little better, and today better still, but I'm still diggin the shit outta the long tank....

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RIPshitRIOT
03-30-2010, 9:06 PM
I'd say the longer tank all day (if you give a shit).

Trapper
03-30-2010, 9:17 PM
Thanks for the input, when ya stare at something long enough it is nice to hear what other people see.

Trapper
04-01-2010, 2:26 PM
This will probably be the seat, dig it.

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Psychophilly666
04-01-2010, 4:34 PM
Lookin good! Seat angle follows the angle of the front forks pretty good!

rustrocket84
04-01-2010, 6:05 PM
That bike looks bad ass. I really dig the style of it. Seat is sweet too.

AnthemMetal
04-02-2010, 11:00 AM
I got to say I like the long tank myself. And that seat rules that bike so hard!

With a seat like that you need the longer tank to store more fuel because it looks comfy as hell!

I'm also liking the single seat post too. It makes the frame look right.

Does the motor mount up using the three bottom mounts? With the back top motor mount unused?

Trapper
04-02-2010, 3:43 PM
The long tank is almost the hands down winner, but that little guy has that slightly earlier, peanut style look to it. It looks like Nick doesn't want to let go of the seat, but Kelly @ http://haifleybros.blogspot.com is going to build me one almost just like it, just refined to the honda's specs and style. The steel rear fender is coming along nicely and I will post a couple pictures of it's progress real soon. Oh, and to answer your question Anthem, the top rear motor mount is missing off of the frame and will be replaced before all is said and done, but it does look like someone was running it with just hooked into the front and lower mounts.

Trapper
04-14-2010, 10:12 AM
Update time- I got the rear hub back from the polisher and got a stainless spoke set from buchanan's, all laced up and I'm trueing it today. Also, the molded rear fender should be done this week and it is looking killer. My buddy Chris used the original fiberglass fender to make a mold and then cast it out of aluminum, he then shaped some 16ga steel over it and grafted that piece on to a new 6" flat fender and added the skirting at the tail end. Been trying to locate the dyna coils I bought, but they are fuckin huge so hiding them under the tank might be a little tricky. I am thinking of going to a regulator/rectifier unit to make more room in my electrical box for the coils.

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wildcard
04-20-2010, 10:20 PM
its got me humping air!