(MBBO #4 Class 2) Mustang Phatty -(FINAL MOCK UP PHOTOS)-



Jan 6, 2013
95
38
Spokane
Filling the tubing with something like sand and taping the ends off, will help keep it from kinking or getting out of round. I did one arched bend in 3/4" copper and filled my tube with ordinary table salt. (was cheaper than sand too)

Carl.
I saw someone online bend chain stays by filling it with water and putting in the freezer. I might try that next time
 
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Sep 14, 2013
6,554
14,044
60
Bradley Illinoiz
www.instagram.com
I googled cone calculator. When I clicked on some of the web sites, my head exploded!! :comando: I've always hated math and when I saw a bunch of letters in the place of numbers, I knew this was not for me. When I went to college for automotive design we were told there would be NO math classes!! We are to design it, it's up to the engineers to make it work. :banana:
And that's why I hate algebra... Who decided captions and the alphabet belong in math?
I'm an engineering student and I still don't get it.
It's not like you have to use a slide rule...
Pick up a scientific calculator, got me thru electronics in college.

Carl.
 
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And that's why I hate algebra... Who decided captions and the alphabet belong in math?
I'm an engineering student and I still don't get it.
That's what I've always said. Math is about numbers, so why in the heck did some idiot mix letters in with it?!!!! :mad:
 
Sep 28, 2014
186
433
Colorado
I now have a solid brake handle and mechanism for the suicide brake. This took a lot of time and "skillbilly" engineering, at least 10 hours.






The suspension spring perch sure made this easier. It provided the right width, strength, and cool hardware to start with. That's 20$ in hardware... I only used maybe 5$.


I tried to just enlarge the hole in the fork end and slide over the aluminum bushing but it was way too sloppy and the handle had a lot of side play. I wound up welding and filling and drilling to size to fit the metal sleeve.


The fender/rack mount hole was perfect for the upper spring perch. I ground a couple of stainless washers flat and they catch the spring great.


I cut the aluminum bushing in half and sized them fit, then used stainless washers against the fork. This is solid and I can compress just enough so the side to side play is less than 3/4" at the tip of the handle.





The bumper holds the springs slightly compressed.


This is different.... but I think it will work. My goal is to be able to "spin some broadies" on this bike.
 
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Mar 26, 2012
8,051
15,889
Maplewood, MN
Yeah, thanks for the step-by-step pics. Well thought out and resourceful! Your use of the brake caliper springs and the nylon bushings is pure genius. And that term....Skillbilly...love it! :thumbsup:
To that I give a hearty Yabba Dabba Doooo!
 
Sep 28, 2014
186
433
Colorado
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Jul 15, 2015
75
130
What a great way to waste an afternoon at work when I should have been, well, working!! Really enjoyed reading about the build from the beginning-you are an artist and a craftsman, my friend!!
 
Sep 28, 2014
186
433
Colorado
Great work on this one. Suicide brake is radical but I'm not seeing how it works? Is there going to be a brake it attaches to?
Yes, Chad. Down low, maybe in line with the top tubes, I'm going to either drill the tube and run the cable through it or weld a tab on the side to accept the brake cable. It will be attached to the rear rim, I'm planning on a disc brake. The handle and mechanism is designed to be a push brake.
 
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Sep 28, 2014
186
433
Colorado
I started on the pattern for the mags. At the shop I traced the original mag onto a piece of cardboard. The layout and dimensions are simple. If you want to copy the mag like I did, I'm sharing them with you guys in millimeters, it's just easier that way. My OD is smaller than the original. My center D is smaller also. Because I don't need to mount to a hub, mine will be welded to the axle, I'm just adding a couple of mms to the actual ID of the rim to get my steel to taper. If you have any questions on the pattern don't hesitate to ask. This is a pretty cool lil mag!

The original mag is 16 gauge.


I had to adjust this pattern. I had the opening at 100mm, not the spoke width.


 
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LukeTheJoker

Moderator
Nov 17, 2012
21,371
18,189
Broken Hill, Australia
www.ratrodbikes.com
I started on the pattern for the mags. At the shop I traced the original mag onto a piece of cardboard. The layout and dimensions are simple. If you want to copy the mag like I did, I'm sharing them with you guys in millimeters, it's just easier that way. My OD is smaller than the original. My center D is smaller also. Because I don't need to mount to a hub, mine will be welded to the axle, I'm just adding a couple of mms to the actual ID of the rim to get my steel to taper. If you have any questions on the pattern don't hesitate to ask. This is a pretty cool lil mag!


I had to adjust this pattern. I had the opening at 100mm, not the spoke width.


Awesome! Saving those pics to my file... :forum:
Looking forward to seeing it happen!

Luke.
 
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kingfish254

CHECK OUT MY SALE THREAD FOR COOL STUFF!
Aug 31, 2009
27,847
25,698
Historic Savannah
www.ratrodbikes.com
So many cool builds, but I think this one is my favorite.
 
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