Threaded Bosses for Frame Lock
#1
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Threaded Bosses for Frame Lock
I recently picked up a 1990 Gazelle Primeur which I am restoring, and one item is replacing the frame lock. Whoever owned this bike removed the frame lock by snapping it off of the frame, leaving two jagged/sharp holes in the seatstay. I'm planning on welding some threaded bosses to these.
Does anyone know what size metric bolt thread frame locks use? Is there a standard size?
I'm going to be using the AXA Victory. I checked their website for specs, but the only info they give is "Mounting Material Not Included." I've searched around and can find no information on bolt sizes commonly used for these.
Seatstay hole
Does anyone know what size metric bolt thread frame locks use? Is there a standard size?
I'm going to be using the AXA Victory. I checked their website for specs, but the only info they give is "Mounting Material Not Included." I've searched around and can find no information on bolt sizes commonly used for these.
Seatstay hole
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#6
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Whoever ... removed the frame lock by snapping it off of the frame, leaving two jagged/sharp holes in the seatstay. I'm planning on welding some threaded bosses to these... I'm going to be using the AXA Victory.
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#7
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I HAVE BEEN QUOTED! (I always love how official those emails make it sound. )
I will be absolutely sure to post updates. The bosses, I think I might be able to use some stainless steel rivnuts (rivet nuts). I just need to make sure they'll expand enough so someone just can't rip the lock out. Might not need to weld at all!
I will be absolutely sure to post updates. The bosses, I think I might be able to use some stainless steel rivnuts (rivet nuts). I just need to make sure they'll expand enough so someone just can't rip the lock out. Might not need to weld at all!
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#8
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Just had the new bosses brazed on! Took them to a local frame-builder and he had them done in about 20 minutes.
Here's the whole brazing video:
Some still-pics of the process.
Sanding the area all around the tubes
Sanding off the bosses
Adding the bosses onto the tubes, along with plenty of silver flux
The finished brazing job
M5 bosses attached, ready for frame lock!
Here's the whole brazing video:
Some still-pics of the process.
Sanding the area all around the tubes
Sanding off the bosses
Adding the bosses onto the tubes, along with plenty of silver flux
The finished brazing job
M5 bosses attached, ready for frame lock!
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#9
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Thread Starter
Just one last quick update on this! This was after the paint job I did. It was a few weeks ago. The entire bike is finished now!! The touch-up paint is a little darker than I would've liked but man was that tough to match! It's more noticeable in pictures than in person. The Velcro holding the brake lines are temporary until I find plastic push-rivets that are small enough to fit into the tube and the clamps.
And talk about irony. The moment I attempted to put my saddle on I realized the tension screw is stripped, so I need to replace that tomorrow. Blegh.
But yes! I feel accomplished. New brake lines, levers, lights, dynamo wiring, rebuilt Sturmey-Archer hub, resurfaced drum brakes, clamps, coat guards, frame lock, frame pump! My first time doing all this!
And talk about irony. The moment I attempted to put my saddle on I realized the tension screw is stripped, so I need to replace that tomorrow. Blegh.
But yes! I feel accomplished. New brake lines, levers, lights, dynamo wiring, rebuilt Sturmey-Archer hub, resurfaced drum brakes, clamps, coat guards, frame lock, frame pump! My first time doing all this!
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#10
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Just had the new bosses brazed on! Took them to a local frame-builder and he had them done in about 20 minutes.
Here's the whole brazing video: https://www.youtube.com/watch?v=zknR18Ib_Ec
Some still-pics of the process.
Sanding the area all around the tubes
Sanding off the bosses
Adding the bosses onto the tubes, along with plenty of silver flux
The finished brazing job
M5 bosses attached, ready for frame lock!
Here's the whole brazing video: https://www.youtube.com/watch?v=zknR18Ib_Ec
Some still-pics of the process.
Sanding the area all around the tubes
Sanding off the bosses
Adding the bosses onto the tubes, along with plenty of silver flux
The finished brazing job
M5 bosses attached, ready for frame lock!
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Life is too short not to ride the best bike you have, as much as you can
(looking for Torpado Super light frame/fork or for Raleigh International frame fork 58cm)
Life is too short not to ride the best bike you have, as much as you can
(looking for Torpado Super light frame/fork or for Raleigh International frame fork 58cm)