The ongoing hookless rims saga

[EB]

Some Internet forums I frequent have a culture of keeping threads on recurring topics alive - so instead of creating a new thread on the hookless topic (of which there are…. a lot… all of which have the same argument in them) you just bump the old one to the topic.

Makes the forum more manageable. Oddly this does happen here, but only for the Campagnolo Ekar thread, for some reason.

Just a thought.

Hookless mountain bike rims are completely fine. Can’t say I’ve used them at high pressures but my desire to ride tires less than 40mm wide is nil at this point.

[BobbyJones]

tubulars - the original hookless rim!

[RoosterCogset]

Originally Posted by Mark McM

Well, Cadex has two hookless rim brake wheel sets:

Cadex 42 Tubeless wheels
Cadex 65 tubeless wheels

You can get hookless rims from Lightbicycle as well
https://www.lightbicycle.com/700C-ro...available.html

[zzy]

Hookless rims are cheaper to manufacture so you can expect the industry to start pushing them more. I can't even begin to understand hookless tubeless rims.

[nmrt]

Perhaps the lone voice here. Have been using hookless tubeless rims for my road bike (28 mm) since late 2019. Just like my hooked tubeless rims of yore, never had any issues whatsoever.

[Dave]

Originally Posted by nmrt

Perhaps the lone voice here. Have been using hookless tubeless rims for my road bike (28 mm) since late 2019. Just like my hooked tubeless rims of yore, never had any issues whatsoever.

You're not alone. Zipp 303s for two years. Now on 3 sets of BTLOS hookless. With Pirelli P-Zero TLR tubeless, I'm not worried.

[fa63]

Risk is defined by many as the probably of a failure occurring times the consequences of that failure. In this case, the former is quite low but the latter very high.

Obviously many people are riding hookless with no issues. It is just that hookless rims have a decreased safety margin compared to hooked rims (on a very safety critical component), and that can be catastrophic for a few unfortunate. And all for what appears to be so that rim manufacturers can save a few grams and a few bucks.

[bicycletricycle]

Correct

Originally Posted by fa63

Risk is defined by many as the probably of a failure occurring times the consequences of that failure. In this case, the former is quite low but the latter very high.

Obviously many people are riding hookless with no issues. It is just that hookless rims have a decreased safety margin compared to hooked rims (on a very safety critical component), and that can be catastrophic for a few unfortunate. And all for what appears to be so that rim manufacturers can save a few grams and a few bucks.

[Spdntrxi]

Originally Posted by lunardds

Not a great endorsement for those foam liners either. My understanding is the hookless is basically held on by the air pressure so when the pressure drops.......bye bye tire?

I've ridden on those exact liners for 15miles+ at speeds ~30mph after a flat on hookless.

you understanding is not totally correct.

[oldpotatoe]

Originally Posted by GregL

Every time I read one of these threads (hookless rims/tubeless tires for paved road riding), I smile and think how glad I am to be riding conventional clinchers on hooked rims. No fuss, no drama, and very few flats. Am I giving away a few watts to more “modern” tubeless setups? Sure. But apparently not enough watts to keep me off masters podiums. My mantra: to finish first, you first must finish.

Greg

Yup, more races have been lost due to equipment, than won.

[glepore]

Originally Posted by zzy

Hookless rims are cheaper to manufacture so you can expect the industry to start pushing them more. I can't even begin to understand hookless tubeless rims.

And of no benefit to the end user.

[Spdntrxi]

Originally Posted by glepore

And of no benefit to the end user.

not entirely true..but 80% benefit probably to mfg

[weisan]

[saab2000]

My DT-Swiss rims on my gravel wheels are hookless. So far no issues in a few years. But I run them at like 35-38 PSI. Not in love with the concept though given the number of reported incidents and accidents.

[.RJ]

Originally Posted by Spdntrxi

not entirely true..but 80% benefit probably to mfg

what is the benefit to the rider/consumer, then?