Homemade rim dent puller help

[jacob9795]

Hi folks,
I’m trying to build a bicycle rim dent puller and need to know if the tool works best if the pressure points go inside the rim or on top of the rim as I have shown. It works as it sits now, but I need to hear some criticism to improve it. Thanks

 

[SKPC]

Nice! With that wood jig you are showing, you could use a large C-clamp too. Pushing from the top of the rim may not fix all dents, but looks good!
Best way to fix dents is to some how reverse the original impact, which takes some guesswork.

 

[jacob9795]

Great idea, thanks for the input. A C-clamp would work great with this thing

 

[fattyre]

Seems like your on the right track.

Maybe more of a curvature on the wood so it cradles the rim more for reduced pressure points?

Un tensioning spokes will probably yield better results too.

 

[Phattiremike]

Good idea, post a before and after picture after you tweak a rim.

Mike

 

[bikemonkey]

I like your style!

 

[jacob9795]

Seems like your on the right track.

Maybe more of a curvature on the wood so it cradles the rim more for reduced pressure points?

Un tensioning spokes will probably yield better results too.

View attachment 876465

Does that thing sit inside of the rim or on top of it? I’ve never owned or used a real one. I measured the inside horizontal of a dropcenter and it’s about 1.30cm, much more narrow than an S-2. Creating a narrow wood/steel insert for the valley of a dropcenter may compromise the contraption’s integrity. I’m thinking of making the blocks that make contact with the rim on what I have a bit wider with notching to keep the edge of the rim in place. I’ll work on it some more over the weekend, my wife told me to paint the living room

 

[locomotion]

Seems like your on the right track.

Maybe more of a curvature on the wood so it cradles the rim more for reduced pressure points?

Un tensioning spokes will probably yield better results too.

View attachment 876465

I have that tool as well, simple and works well

 

[fattyre]

Does that thing sit inside of the rim or on top of it? I’ve never owned or used a real one. /QUOTE

When I worked in a bike shop they had one. Mixed results at best. I remember it working best on steel 27 inch rims that were thinner. Also remember it wanting to wind up due to friction when tightening. It needed a roller bearing or at least some type of bushing.

But lets face it, once a rim is whacked bad enough that this tool is an option, your chances of success are pretty low. But it is better than nothing.

Your homemade option is probally better due to its versatility.