I am adjusting my tire pressure and only recently moved to Tubeless. I ride Pirelli P Zero Race on Syncros Capital 1.0 50 (on Scott Foil 2020, if that matters) and trying to figure out if (1) my wheels are hookless or not to figure out (2) max pressure. (Silca’s calculator puts me over the 75 PSI m…

My understanding is that hookless is really best for wider tyres. At least 28mm. That video features an Extralite rim with 25mm Conti GP5k S TR. That seems pretty narrow to me - Zipp don’t recommend that tyre in that size for any of their wheels, though are fine with the 28mm and larger versions.…

I know N=1 isn’t science, but I’m probably one of the heavier guys on there at 210# and I’ve had no issues with hookless zipps on gp5k str at 73psi. That said, it was always kinda on my mind, which I didn’t like. Those wheels have been converted to cx duty at about 26psi on challenge tires, so I’d …

[image] mikehhhhhhh: No one ever had a blowout before hookless? :eyes: Usually not at that tire pressure…

I’ve talked unofficially with industry peeps and they all said that hookless rims are easier and less expensive (has something to do with QC tolerances and the way they come out of the mold…not sure) to manufacture and one of the reasons you saw the earlier makers of these were the cheaper Chinese…

[image] mackdhagen: I’ve talked unofficially with industry peeps and they all said that hookless rims are easier and less expensive Yup, way easier. The same hook that keeps your tires on also prevents easy mold release in the factory.

I will link the thread I started, but I blew my tire straight off my rim in June and we discussed it. [image] Blew My Tire Right Off My rim! Equipment I like to think I am pretty mechanical and technically savvy… That doesn’t mean I cant or wont royally screw things up f…

OK…LOL at running this “experiment” inside your house . [image] cartsman: My understanding is that hookless is really best for wider tyres. At least 28mm. That video features an Extralite rim with 25mm Conti GP5k S TR. The recommendation for at least 28mm tires is based on the ETRTO specs fo…

[image] Un-QuittingBikes: Yup, way easier. The same hook that keeps your tires on also prevents easy mold release in the factory. But if you already have the tech to produce hooked rims, why advocate hookless because surely a lot of competitors will jump in producing cheap hookless rims

Not much tech, just more of a pain in the ass for the worker because more components need to be bolted and unbolted for each and every part. The savings is primarily in the labor. Moldmaking for carbon fiber is the easiest type of moldmaking in the entire manufacturing industry because everything’s…

Yup, OK according to ETRTO current standard. Just 25mm seems a borderline case to me and personally wouldn’t buy a hookless rim if I wanted to run that width. I’ve heard smarter and more informed people than me like Dan Empfield and Josh Poertner talk about having at least a 5mm difference between…

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Hookless or not?

Equipment

teddygram August 1, 2023, 4:25pm 13

I will link the thread I started, but I blew my tire straight off my rim in June and we discussed it.

Topic		Replies	Views
Rumor: Upcoming ETRTO Spec to Limit Inner Rim Width to 23mm for 28mm Tires Equipment	65	4932	May 12, 2023
Blew My Tire Right Off My rim! Equipment wheels , tires	64	4150	August 1, 2023
Best tubeless hookless tyres / tires Equipment wheels , tires	57	31818	March 21, 2023
Long Term Zipp 303s User Question (Zipp 303fc, Roval 38c) Equipment wheels	60	10583	July 26, 2023
Very confused pressure of 25mm tyres on hookless wheels Equipment	37	3570	September 22, 2024

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