Coming soon to bikes near you- double hooked rims!

[mstateglfr]

https://bikerumor.com/dandy-horse-double-hook-rim/

Marketing speak misnomer, at least from what I can tell. It's really just a rim that is fluted out a bit for more material to reduce pinch flatting...on tubeless.

Revolutionary?
Gimmick?

[dgauthier]

Another solution in search of a problem?

[Louis]

Too bad they don't show any data indicating that the "double hooked" is any better than the alternatives when it comes to preventing pinch flats, something that would be relatively simple to show in a lab test.

[oldpotatoe]

Originally Posted by dgauthier

Another solution in search of a problem?

No kidding..Hooked, then hookless, now 'double hook'...what's next? 'Hookah'?

Gotta be to come up with some of this stuff..

[NHAero]

Originally Posted by oldpotatoe

No kidding..Hooked, then hookless, now 'double hook'...what's next? 'Hookah'?

Gotta be to come up with some of this stuff..

Hooklineandsinka

[biker72]

Just another way to sell more wheels.

[Likes2ridefar]

zipp mtb wheels look similar in design though hookless. I really like mine. 30mm internal and weigh less than my 25mm fulcrum carbon gravel wheels.

[Mark McM]

Enve MTB rims also feature a "mushroomed" bead edge for pinch flat resistance:




The "double hooked" rims feature an internal "hook" as well.

[saab2000]

The labeling is odd, but whatevs.

As to wider rims, they’re coming and they’re gonna get crazy wide I think. Zipp’s new XPLR line is, what, 32mm internal? Or was it 35? I think 30+ will become standard in a couple years, at least for gravel wheels.

[MikeD]

Originally Posted by Likes2ridefar

zipp mtb wheels look similar in design though hookless. I really like mine. 30mm internal and weigh less than my 25mm fulcrum carbon gravel wheels.

So they can't form the hook on the inside but can on the outside?

[Blown Reek]

I welcome anything that makes installation more difficult.

[username]

F@#k Everything, We're Doing Five Hooks

[Mark McM]

Originally Posted by MikeD

So they can't form the hook on the inside but can on the outside?

Basically, yes. Carbon rims are formed in molds, and it is difficult to form undercut internal shapes with a rigid mold. After the rim has been baked and set, how do you pull the mold out from the inside the rim sidewalls with the internal hooks in the way?

[MikeD]

Originally Posted by Mark McM

Basically, yes. Carbon rims are formed in molds, and it is difficult to form undercut internal shapes with a rigid mold. After the rim has been baked and set, how do you pull the mold out from the inside the rim sidewalls with the internal hooks in the way?

I have no idea since I've not seen the molds/fabrication process.

I would think this would be useless on a road bike. I can remember only one pinch flat in 40 years of riding and it looks like only marginal improvement in pinch flat resistance anyway as compared to foam inserts.

[johnniecakes]

How to prevent a pinch flat is simple. Inflate with enough air pressure. When the side wall completely collapses you get a pinch flat. Solution is to use enough air to support this collapse. Hooked or hookless is irrelevant.