View Full Version : The CBX Chop

03-15-2010, 11:26 PM
So some of yall know I have a CBX Chop in the works. Well I have decided this is gonna be my rider this year so I better get it in shape. I started this build last May and was really cranking on getting it done but ran into a ride height problem and stuck the sumbitch in a corner, half pissed and disgruntled and half tired of not getting it done / slash out of money to stick into it.

I started with a huge digger frame I picked up locally for $300. I purchased an Ironhorse front end for it that looked perfect with that wide-ass motor. Had a Honda drum hub laced to an Excel 6 inch rim wrapped in Metzeler 200 rubber. I was well on my way. I made some custom drag pipes that are not finished, part of the forwards and other miscellaneous stuff.

The frame was a real backyard hack job that was set up for an HD motor. I cut, grinded, welded and cleaned up that frame to make it as cool as possible. Once I had the lower motor mounts done and the pipes mocked up I discovered there was no way in hell the ride height was gonna work.

Here are a few pics to go with the story so far.
Bought the bike as a basket case....really. Came in two plastic laundry baskets, several card board boxes and a barely rolling frame with wheels. I cobbled the pieces together with other stuff from the shop just to see if I could make it run and ride. The bike hadn't been run in 7-8 years and was sitting outside part of that time. I ripped the entire harness out and put a simple "chopper wiring" on it and rode it one day just like this.

Here is the 2001 Ironhorse Tejas front end I scored and the 21X3.5 front wheel

And then I found this digger frame I was telling you about. I picked it up to put a cb750 in but when I got it back to the shop the wheels started turning in the ole melon.
And so just for fun lets see what it would look like. Shot a pic with my blackberry that night.

03-15-2010, 11:36 PM
That pic has the motor just sitting in there on the HD mounts. I thought hey, maybe I should run this frame with the CBX........for real!!!

So I started cleaning up the frame and making the proper mounts.

Started to make some pipes from the stockers to fit the motor in the frame. Not finished but this should give you an idea of where I am going with it.

I re-worked the radius of this scrap fender I had laying around. I had to trim the inside curve on each side after shortening the sides and then make cuts every two inches or so on both sides so I could make the fender match the Metzeler radius. The weld it back, grind and smooth.

03-15-2010, 11:44 PM
I've got these built into the frame forward pegs but the super width of the inline six means I needed extensions. So I took an old set of Billy Lane grips and converted them to foot pegs. I hand turned a portion of the frame peg for the grip to slide onto with an internal bolt to support it throughout. Worked great!

Then I began to twist up a custom shifter and brake pedals.

And then when all seemed to be going so well.
Its sitting way too fricken low and I cannot leave it that way. Off to the corner it can sit until I decide what I want to do. (Insert winter 2009 here)

03-16-2010, 12:00 AM
So I am on HC.com where I am quite often and a buddy of mine in WI puts up a brand new killer inverted 61mm chrome front end up for sale for $350. The light bulb goes off immediately! I gotta have than for the CBX. I would be able to raise the front of the bike and probably even rake it some. The length of the bike is jsut calling for more rake and its been bothering me that it didn't look balanced. Whomever built the frame did not think it through properly for sure. I get the idea I could re-work the tail section to raise the rear ride height and maybe extend that stubby thing a tad.

Now themotorcycleguy (Dave) and his buddy Schoolteacherjim (Jim) both have made some awesome frames so I figure I'd drive over with my frame (440 miles one way through the upper penninsula) to pick up the front end and while I'm there get these two nice guys to help me with their machines and jigs re-work the digger frame for the new longer front end while changing ride height and putting a few inches in the rear (no, I'm straight ahahahahaha).

So this past weekend Daddyschatz and myself drive over. We leave 6 a.m. Friday and get there by 2 p.m. just before Dave and Jim get off work. We start in on the frame by 5 p.m. But as soon as we get the frame up on the jig it becomes obvious they don't like it much. So Dave and Jim both agree.......let's just build another frame while he's here!!!

All we are gonna use is the bottom of the cradle. Oh bother...have we made too big a project for a shot visit?

Here is Daddyschatz with the double barrell shotgun...err I mean down tubes

And me with the killer new 12" over massive front end

03-16-2010, 12:07 AM
Let's start building. Eventually we find we'll lower the neck 2 inches, rake it out to 53 degrees including the 5 in the trees, run 4 inches of trail, shorten the backbone 2 inches and extend the rear 4 inches. The big guy is Jim and the smaller guy is Dave.


03-16-2010, 12:14 AM
Saturday morning and almost done!!!!

Lets push it outside for some pics real quick. Its after lunch now and I need to get on the road soon and go home. We worked till 11 p.m. or so Friday night and then started again at 8:30 a.m. Finished around 2 p.m. We would have got done sooner except we had the rake wrong the first go around and re-made that on Saturday morning. Probably around 11 foot tip to tip.
The rear wheel is just a mock up wheel. Thats me on the roller with Jim and Dave in the last pic. The bike doesn't look so big when you get my big ass on there!
Over compensating comes to mind though! ahahahahahahaahaha hhhhmmm?


03-16-2010, 12:15 AM
I've got welding and gussets to do still, but you guys get the picture. I'll keep you up to date on this one. I'll make it a mock up rider in the next few weeks. Stay tuned!

03-16-2010, 12:33 AM
Fucking running with it!

03-16-2010, 1:17 AM
Why did you cut the frame up? should of just started from scratch. I liked the first version, the arts and craft stuff isn't my cup of tea. Still like the badass CBX motor

03-16-2010, 6:08 AM

I liked the lines of the original, but I also think the CBX needs something big and bold, so the new frame works too, in a different way. That front end is BIG... Get that sucker nailed together and let's see it on the road.


03-16-2010, 7:17 AM
The bike is only about 6 inches longer than before and the frame length is about the same. Its just more balanced now. Before it looked real front heavy and the bars would have had to been some sort of tiller bars. The rider now sits more centered in the proper place and the trail is set as well. Should make the bike ride real nice now.

Yeah I like making the parts rather than buying them if thats what you mean by "arts".
I don't have all the fancy equipment and tools to make the "industrial" looking parts that have the waterjet or milled billet look. And my budget won't cover someone else making it for me so I am stuck with what "I" can make or I'd have to just "buy" parts.

This project has changed so many times that I never really intended to post much about it here. Just a few guys had been asking in other threads when it was mentioned.

03-16-2010, 10:35 AM
I wasn't trying to be a jerk. The cross and the pegs was something i wouldn't go with. But belive me i have a ton of respect for a CBX chopper. I wish i could hear it run in real life

03-16-2010, 8:48 PM
Yeah the beefier tubes make it look more substantial even if the size is still close. Should be good. Keep it going and keep us 'posted'


03-16-2010, 11:19 PM
much respect for a CBX chop. One of the most underated motors in motorcycling

11-14-2010, 9:44 AM
Bored and looking back, whatever happened to this sweet chop?