1950’s A/Schwinn Straightbar Klunker

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Uncle Ookie

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Sometimes the "Phillips slip" is exacerbated by either the driver or the screw actually being JIS (Japanese Industrial Standard).

Yeah i remember something about that… lost and back again
 

Uncle Ookie

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Uncle Ookie

RRB Supporter
Joined
Nov 15, 2021
Messages
134
Reaction score
241
Location
Chicago, IL
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Would love to have a rear brake… for skids and such…. But in 1958 that was not as much a priority for this bike… as was a fender….

View attachment 181599

… Any ideas on making this hole be for a R brake?….

y’all been so nice and helpful

If you decide to drill it and need help keeping it centered here is a cheap way to center a drilled hole on round tubing using an electrical ground clamp for pipe. Just remove the screw and size the bit to match the hole in the ground clamp, you can always enlarge later if needed. The hole in the ground clamp is barely 1/4". By matching the size of the hole the bit will stay centered and the tall shoulder on the clamp will keep it straight. In the photo I am drilling 3/4" tubing on a drill press but if you buy a 1/2" ground clamp it should tighten down enough and a hand drill will work fine. Not knowing the thickness of the metal you are working with there may be a chance that drilling the additional holes will weaken it.
 

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Uncle Ookie

RRB Supporter
Joined
Nov 15, 2021
Messages
134
Reaction score
241
Location
Chicago, IL
If you decide to drill it and need help keeping it centered here is a cheap way to center a drilled hole on round tubing using an electrical ground clamp for pipe. Just remove the screw and size the bit to match the hole in the ground clamp, you can always enlarge later if needed. The hole in the ground clamp is barely 1/4". By matching the size of the hole the bit will stay centered and the tall shoulder on the clamp will keep it straight. In the photo I am drilling 3/4" tubing on a drill press but if you buy a 1/2" ground clamp it should tighten down enough and a hand drill will work fine. Not knowing the thickness of the metal you are working with there may be a chance that drilling the additional holes will weaken it.
Thanks neighbor!!!
 

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