Just been looking at the Pinkbike tech tuesday guide to straightening rims:

http://www.pinkbike.com/news/Tech-Tuesday-Fixing-Rim-Dents-2012.html

Really like the look of the Morningstar Rim ‘Rench, but it seems they’re not made anymore since Paul Morningstar died.

http://www.bikeradar.com/gear/category/tools/cycling-tools/product/review-morningstar-tools-rim-rench-11-45426/

http://morningstartools.com/

So, has anyone copied the Rim ‘Rench?

If you can get some accurate dimensions of a Rim Rench,I could make one for you. 😉

It was a long time ago…

…but last time I needed to do this I just stuck two foam sticky pads to an adjustable spanner, tightened it up and levered the rim back to where it should be.

It was a brand new Mavic F519 which I dented on its first ride. I came up short on a huck to downslope over a footpath. The footpath had a raised edging which I caught. Was not happy!

*edit* just clicked the link and saw they too used an adjustable spanner. I still recommend the foam sticky bits though.

I’ve always managed with a big adjustable spanner.

Blimey, found how Paul Morningstar died:

Toolmaker Paul Morningstar Found Dead in Booby-Trapped California Home

And a DIY copy:

http://forums.mtbr.com/tooltime/inward-rim-dent-puller-diy-949450.html

Be good to find the original though to get the dims from it. fasthaggis, fancy making up a few versions to develop it?

Humungous aj and a vice are the ideal tools surely?

PS, relieved to discover you can search google images for rim rench and not get sacked.

relieved to discover you can search google images for rim rench and not get sacked.

Whereas “rim wench” might have different consequences, but I’m not going to test that one.

Never heard on them before but now I want a Rim Rench more than any tool ever in the whole history of the world 🙁

…might try and make one

Fasthaggis, I may be able to help.

Is your e-mail still the one in your profile?

a wide-jawed adjustable spanner is better than any “specific” tool, as its wide enough to spread the pressure and not crease the rim wall.

Been using a modified adjustable for years, ground back the tip that fits inside the rim as it needs to be a shallower depth, and rounded the edge that sits on the outside of the rim so it doesn’t dig in.

Adjusti spanner and a flat bit of metal held against the outside works perfectly

As above ^

Video showing what a piece of piss it is.

[video]http://youtu.be/Zg4ZFruCfSg[/video]

fasthaggis, fancy making up a few versions to develop it one for me?

FTFY ,I don’t do mass production,the workshop minions* would get annoyed.

* they are too valuable to annoy 😉

@Velo
If you have dimensions or a DXF/CAD file that would be useful.

I followed the Pinkbike guide in the past with the standard wrench and a flat bit of metal, and worked perfectly. I wouldn’t bother with a dedicated tool myself.

I was going to suggest a hammer and a bit of wood, but the adjustable spanner method seems a little more refined. 😉

Yep always use an adjustable spanner.

Fasthaggis, can’t do a DXF/CAD and dimensions are a bit tricky because of the shape, but would a pdf containing a to scale scanned “copy”, with a couple of rulers beside it to confirm the scale, be of any use?

Been using a modified adjustable for years, ground back the tip that fits inside the rim as it needs to be a shallower depth, and rounded the edge that sits on the outside of the rim so it doesn’t dig in.

That’s a good idea.

Using an adjustable is sort of OK, but it does create a sharp dent or ‘fold’ in the rim wall in the middle (on the outside). There is definitely an (admittedly niche!) market for these tools.

If you hit it in just the right place it should pop right out.

Use one of Sheldon Browns dent removers, see:

http://sheldonbrown.com/dent-removal.html

I use a mole grip that has a hook/lip on the grip in just the right place to lever out the bead against the right area of the outside of the rim- set the width, protect the rim and go easy. With old-generation P35s and 18psi tyres you learn to pull out dings effectively .. but a proper tool would be a good call, I’d be buying.