Keep mounting bracket from rotating?
#1
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Commuting Fool

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Keep mounting bracket from rotating?
I’m trying to figure out a way to keep this single bolt from rotating. I purchased this accessory mounting bracket that seems like a perfect fit to mount my headlight. It would work out great if I could figure out a way to keep it from swinging side to side. A unique problem that I can’t figure out. Any help would be appreciated, thank you.






Last edited by boneshaker78; 08-23-23 at 04:52 PM.
#4
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angle bracket narrow enough to fit in the bracket you bought, and then bend it over the rack tube.
how wide is the channel in the bought bracket? Plumber's strap might work... loop it over the rack and then attach it again on the backside...
A Star Washer between the bracket and rack might work, but won't be a great solution...
zip ties in the right places might work...
and some handwork with a Rat tail file might make the bracket conform to the Rack's top tube, as "a pair of tabs"
i'd try the strap over the tube first... any hardware store will have plumbers strap material... it might need trimmed to width, or might have too large of holes in it... use the channel on the backside of the light mount to trap the strap... double up the strap to add strength...
That same hardware store will have Brass, Steel, and aluminum sheets that could be used to make an L-bracket to hook over the top rail and set in the channel on the back of your new mount bar... you'll need some tin snips and a drill/motor. A 2x4 will work as a form to bend the L-bracket...
how wide is the channel in the bought bracket? Plumber's strap might work... loop it over the rack and then attach it again on the backside...
A Star Washer between the bracket and rack might work, but won't be a great solution...
zip ties in the right places might work...
and some handwork with a Rat tail file might make the bracket conform to the Rack's top tube, as "a pair of tabs"
i'd try the strap over the tube first... any hardware store will have plumbers strap material... it might need trimmed to width, or might have too large of holes in it... use the channel on the backside of the light mount to trap the strap... double up the strap to add strength...
That same hardware store will have Brass, Steel, and aluminum sheets that could be used to make an L-bracket to hook over the top rail and set in the channel on the back of your new mount bar... you'll need some tin snips and a drill/motor. A 2x4 will work as a form to bend the L-bracket...
Last edited by maddog34; 08-23-23 at 06:10 PM.
#5
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Commuting Fool

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Bikes: 1994 Norco Monterey
All good suggestions. Just trying to keep it looking as clean as possible and would rather keep straps off the top of the rack. You might be right about a plumbers strap. The groove in the bracket is 10mm. Here’s a picture of what was intended to be used.
#6
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Bikes: 1982 Trek 930R Custom, '91 Diamondback Ascent w/ XT, XTR updates, Fuji Team Pro CF road flyer, Specialized Sirrus Gravel Convert, '09 Comencal Meta 5.5 XC, '02 Marin MBX500, '84 Gitane Criterium bike
try a single INTERNAL TOOTHED Star washer first then... 6mm bolt, right? tighten it as tight as you feel is safe,and use a locking nut on the bolt.
Two lights would balance things, reducing vibrational/bounce torque.
personally, i'd use the strap Minoura provided... it can be done, and that is maleable stainless steel, i bet... besides, it's quite thin and will not intrude on your milk crate basket...
Two lights would balance things, reducing vibrational/bounce torque.
personally, i'd use the strap Minoura provided... it can be done, and that is maleable stainless steel, i bet... besides, it's quite thin and will not intrude on your milk crate basket...
Last edited by maddog34; 08-23-23 at 06:20 PM.
#7
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Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Make or buy a donut or short tube that can orient to the face of the rack's "braze- on" and provide a hard face for your adapter.
OR
Use a file to remove the two side rails from the adapter, then file from the top until it squares up between the rack's mount and back rail.
If it were mine, I'd do the second because it'd be more rigid, but I'm good with a file. Otherwise the first is probably fine.
OR
Use a file to remove the two side rails from the adapter, then file from the top until it squares up between the rack's mount and back rail.
If it were mine, I'd do the second because it'd be more rigid, but I'm good with a file. Otherwise the first is probably fine.
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FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
#8
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#9
SE Wis

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#10
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Commuting Fool

Joined: Sep 2012
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From: USA
Bikes: 1994 Norco Monterey
Make or buy a donut or short tube that can orient to the face of the rack's "braze- on" and provide a hard face for your adapter.
OR
Use a file to remove the two side rails from the adapter, then file from the top until it squares up between the rack's mount and back rail.
If it were mine, I'd do the second because it'd be more rigid, but I'm good with a file. Otherwise the first is probably fine.
OR
Use a file to remove the two side rails from the adapter, then file from the top until it squares up between the rack's mount and back rail.
If it were mine, I'd do the second because it'd be more rigid, but I'm good with a file. Otherwise the first is probably fine.
Thanks for the suggestions and replies everyone.


#11
I’m trying to figure out a way to keep this single bolt from rotating. I purchased this accessory mounting bracket that seems like a perfect fit to mount my headlight. It would work out great if I could figure out a way to keep it from swinging side to side. A unique problem that I can’t figure out. Any help would be appreciated, thank you.
#13
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From: Maryland
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Wrap the bar with a single wrap of silicon self fusing tape before installing the bracket.
That or spray it with a bit of rino liner, the stuff used in pickup truck beds, and let that set before installing the bracket.
something to add a little friction.
That or spray it with a bit of rino liner, the stuff used in pickup truck beds, and let that set before installing the bracket.
something to add a little friction.




