The Chopper Compendium

Try to post some pictures. There are a couple of ways to work around this if I understand your current positioning but I need to see you setup. Finding a long belt shouldn't be a problem however since we've been doing frames with 4-inches of rear stretch for a long time.

This is kind of a specialized site so activity is sporadic depending upon what folks are working on. It's isn't a social media type of forum.
By the way some of the links on your site are infected with a virus so if you post anything else make sure you remove the links.

Great work. Looking forward to seeing this one come back to life.

Most shops will their own proprietary software for the machine controller, whether it's a plasma, mill, lath, waterjet etc. and these packages will typically read a dxf file and the be run thru a postprocessor to make the G-code. for a part to be milled the dxf file is typically a 3-D mesh of the pa...

I've seen people making them from both 316 and 304 and even a few outfits using cold rolled steel and then plating it so I'm not to sure if the material is all that important except in perhaps some kind of high performance application. If I was going to make some rotors I'd use 316 since it's relati...

Same here. I print out the trees, perch, bridge and rockers on 60 pound bond on my regular home printer for templates. No need to have the legs and stuff printed full size since you'll be changing the lengths. On the really wide parts you may have to 'tile' the print and then tape it together but th...

I don't know how this rumor got started but I know all kinds of builders here in Texas that are having no problems getting their home-built bikes registered when they've built their own frames. Titling a frame is something completely different and only really applies to Harley frames made after arou...

This turned out really nice, and I think, pretty darn original as well.

That sounds about right for a bare-bones bike. My philosophy is that if you go over 450 pounds you're just carrying around dead weight somewhere in the design. I've been working on a friends chopped Knuck and having to manhandle it around the shop and doubt that it weights 370 and it's even using a ...

Springer leg material has always been a shot in the dark as the 'normal' engineering calculations just don't seem to apply. Remember that both Freddie and Mondo and Jeri still use 1.25 o.d. by .125 wall 4130 for forks up to 30-over. A lot of small shop builders use 1026 with .125 wall as well. If yo...

If you're going to build a new set of forks why change anything on the frame to begin with?? The bike would look kind of lame with a tiny little 35-degree rake. I'd run it as-is, just with a different set of forks.

Better to just modify the frame you already have as it saves time and money even thought it may seem like a lot of work at first glance. Basically just redo from about the motor centerline and forward. I can come up with some dimensions if you haven't already figured them out.

Now that's what I call Cool!

By the way here's a link to a pretty good video that shows how much legs can flex. It's a long vid and it takes a while to get to the 'riding' part. The other interesting thing is that even though both of these Sugar Bear front ends look different and have different rocker designs both bikes are set...

You can use one of the online deflection calculation programs to compare different combinations of tubing for various lengths compared to a 'known' set of forks. I used to build to specific length using different walls (some very thin) but it became such a pain in the ass to make a bunch of differen...