- Local time
- Yesterday, 21:39
- Joined
- Sep 1, 2023
- Messages
- 538
- Points
- 127
- Age
- 64
- Location
- Albuquerque, NM
- First Name
- Joel
- My Ride
- 1971 Triumph Bonneville T120R
- Riding Since
- 1974
So, I got most of the OEM butting removed, together with the unbelievably cruddy 'repair' that the broker did. On that front, if ever someone is poised to buy a bike from a private broker who works out of his garage in Santa Fe and whose name is Mark (or Marc?), beware... he actually slathered silicon over his ridiculous excuse for a weld before painting!
But I digress...
First image shows angle of the OEM lug, here just shoved back into its nest of welding wire and silicon. The bike was propped up at a reasonably vertical angle before his 'repair' failed--though I do not know if it was correct (see below request).
Second image shows how, as you grind (and then sand as you get closer to the frame's O.D.) the lug--after knocking back its torn edge a bit with a cold chisel--a margin appears, indicated by the arrow. The lug turns blue along this margin as it gets paper thin and heats up, before basically disintegrating as you continue around the circumference, as it's welded on at the fore and aft ends and there are no through-holes or pins welded to connect the butt to the frame tube. A pleasant surprise, as I've never done this sort of repair before.
Third image demonstrates that I'm getting closer to being able to adjust the coping of the new combo butt/lug and weld it on--after practicing on the DOM tubing that should arrive soon.
However, I think the angle needs to be a bit more obtuse to get closer to correct, so I'm shifting over to a flapper sanding wheel in the angle grinder--and then perhaps even to a Dremel sanding drum--to continue removing the butt a few more degrees around while staying away from the engine case.
What I think I'll do is remove the tank and use my engine hoist to tilt the bike at what seems like a good angle, then finalize the angle of the butt/lug and mark it and the frame for welding.
Oh - and looking at the extended angle of this kickstand in a fore-aft plane (if I don't try to adapt the OEM lever), it looks like I can definitely add a reinforcing gusset to the forward edge without interfering with deployment. I can't think of a reason not to do that, in order to essentially eliminate the butt-to-lug area as the weak link in this style of kickstand attachment. Can anyone else...?
REQUEST FOR HELP: Could someone please put their late '60s or '70s Triumph on the side stand, and help me confirm what the appropriate angle of lean is?
OR just lay a straight edge across the bottom cradle tubes and take an angle from the lug extending down and out from that plane...?
I can guesstimate but would appreciate some data if possible.
But I digress...
First image shows angle of the OEM lug, here just shoved back into its nest of welding wire and silicon. The bike was propped up at a reasonably vertical angle before his 'repair' failed--though I do not know if it was correct (see below request).
Second image shows how, as you grind (and then sand as you get closer to the frame's O.D.) the lug--after knocking back its torn edge a bit with a cold chisel--a margin appears, indicated by the arrow. The lug turns blue along this margin as it gets paper thin and heats up, before basically disintegrating as you continue around the circumference, as it's welded on at the fore and aft ends and there are no through-holes or pins welded to connect the butt to the frame tube. A pleasant surprise, as I've never done this sort of repair before.
Third image demonstrates that I'm getting closer to being able to adjust the coping of the new combo butt/lug and weld it on--after practicing on the DOM tubing that should arrive soon.
However, I think the angle needs to be a bit more obtuse to get closer to correct, so I'm shifting over to a flapper sanding wheel in the angle grinder--and then perhaps even to a Dremel sanding drum--to continue removing the butt a few more degrees around while staying away from the engine case.
What I think I'll do is remove the tank and use my engine hoist to tilt the bike at what seems like a good angle, then finalize the angle of the butt/lug and mark it and the frame for welding.
Oh - and looking at the extended angle of this kickstand in a fore-aft plane (if I don't try to adapt the OEM lever), it looks like I can definitely add a reinforcing gusset to the forward edge without interfering with deployment. I can't think of a reason not to do that, in order to essentially eliminate the butt-to-lug area as the weak link in this style of kickstand attachment. Can anyone else...?
REQUEST FOR HELP: Could someone please put their late '60s or '70s Triumph on the side stand, and help me confirm what the appropriate angle of lean is?
OR just lay a straight edge across the bottom cradle tubes and take an angle from the lug extending down and out from that plane...?
I can guesstimate but would appreciate some data if possible.
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