bicycle parts

[churchjw]

A friend of mine has gotten into redoing vintage bikes (70's and 80's) So I have been making parts for him mostly things he can't find or that could be done better. I just finished a bracket to hold his back rack on a very nice Trek. Was a quick evening project.



These are pictures of the bracket before it was polished. Made him do the polishing so I didn't get pictures of it after. The holes are just for looks (I think). Its called drillium ( I am not making this up :nuts and a lot of the road bike people really get into it. Its is for "weight savings". If you look close 4 of the holes are out of place. I was to lazy to change to a center drill. :banghead: Oh well. There is probably a market for hobby machinist to drill out parts for bike riders like this. If you look at examples online that people have done these people have apparently never seen a DRO or a mill.



It was interesting figuring out how to clamp the piece in for some of the cuts. Don't laugh it worked. Oh well just a quick post about a quick project.

Jeff

 

[GoMopar440]

Nice work!

Sorta related (bike stuff): I want to pick up one of those 80cc 2-stroke engine kits (from ebay) for my bike. That is if I ever get the bike up here from MS (I'm in MT now). I was thinking about making some brackets similar to yours for the frame mounts. The mounts that come with the engine kits are just stamped and bent steel straps. There's lots of room for improvement with those engine mounting pieces.

 

[Mid Day Machining]

FWIW, if you use stub drills, you can usually get away without a center drill.