Just put on a set of Terreno Drys on a set of hookless rims... of course only after I got them on and filled with sealant did I notice the 'hooked rims only' marking on the sidewall. Doh. I've run a pretty wide gamut of tires on these rims with no problems but these 35mm Terreno's are certainly the narrowest tire I've tried. Is it too risky? I'm hoping to run them between 45 and 50psi (no more) and thinking that *might* be OK. Any one else had experience with these on hookless rims? Thank you.
Since you have them mounted, one way to tell if they're going to work is to ride them, but you do so at your own risk. It would also be helpful to know what rims you're using.
Why are you running such high pressure? How much do you weigh?
Thanks for the reply. I rode them today at about 48psi and they seemed fine. The reason for the higher pressure is this is essentially my 'road' wheelset. On my other wheelset I run 45-47mm tires at around 28-32 psi for gravel and off-road.
I wanted a set of wheels that I could use to do a bit of road riding with the group, but can still ride on gravel if I need to. On gravel I'd lower the pressure a bit. I'm in Australia, and it was actually hard to find tires in the 35mm range that are tubeless-compatible that fitted my needs (durable, reasonably fast on road, still OK on good gravel etc.)
I'm using Wheelsfar carbon rims that are 23mm internal. They've been great for everything so far... I weigh 70kg.
Thanks. Any other thoughts appreciated.
bnystrom wrote:
Since you have them mounted, one way to tell if they're going to work is to ride them, but you do so at your own risk. It would also be helpful to know what rims you're using.
Why are you running such high pressure? How much do you weigh?
I had the same problem with the Terreno Zeros. Even though I wouldn't run them more than 40psi, I sold them and only lost a few dollars. Wasn't worth the risk for me. Not sure why their tires can't be run hookless.
smoothmoose wrote:I had the same problem with the Terreno Zeros. Even though I wouldn't run them more than 40psi, I sold them and only lost a few dollars. Wasn't worth the risk for me. Not sure why their tires can't be run hookless.
I ran the Terreno Dry tires on Enve 3.4 AR hookless wheels and had the same concern. I ran them around 45 psi for about 500 miles and didn't have any problems. I switched to 34mm Byway tires after that just to gain a bit on pavement.
bender16v wrote:I ran the Terreno Dry tires on Enve 3.4 AR hookless wheels and had the same concern. I ran them around 45 psi for about 500 miles and didn't have any problems. I switched to 34mm Byway tires after that just to gain a bit on pavement.
That's good to know - thank you. The LBS today said they'd contact the supplier and get them to confirm. I've put some WTB Resolutes back on in the meantime.
Anecdotal and not same tires at all, but I ran Compass 38mm tires on some Yoleo hookless rims and they worked great for 1500 miles and then the front just blew off the rim at 45psi (those tires are soft, so higher psi) while riding along at a casual ~15mph. Terrifying how that would have ended on a downhill.
So, I wouldn't risk it if the tire says hooked-bead only. And would not assume that if it is fine for 1000 miles that it will be fine forever. (Compass/Rene Herse tires are approved by Enve for their hookless rims.)
YMMV but I've been running Dry & Zero's for 3 years on hookless rims (Industry Nine Pillar carbon trail). No problems at all. Only weird behavior I've noticed is they tend to trap a little sealant & air between the bead & rim that will seep out if I push on the sidewall at lower pressures, but it doesn't impact tire retention.
I would contact the wheel mfg if you can, but of course the easy answer is don't do it.
But, realistically, keep within the pressure range for your wheel (which may vary a bit by the tire size). The other thing is - does it fit tight? If it fits loose, it can be a bit dangerous (especially on the front). I do use skinny strippers to ensure my tire doesn't burp if I have any doubt. If it is a tight bead on the tire, and if it pops solidly on the bead lock channel, you should be good to go.
I've used non tubeless tires on my hookless rims with no problem (using a skinny stripper for safety).
The hooks are on rims to ensure that the tire does not blow off at high pressure. You'll typically see tire manufacturers doing this if the max tire rating is over 60psi, because you can't go over 60psi when the max PSI is printed at 90+
I also use conti GP5000 hookless. There is no way that tire is going to blow off the rim - I'm doubting I can even get it off the rim when it wears out. It is labeled "for hooked rims only," but when a conti engineer was asked he said - oh you are fine if you stay under 5 bar - you just cant put 100+ psi in that tire without a hook.
Thanks Chas. Great info. I have contacted the distributor and Vittoria. Not heard back yet but as soon as I do, I'll post an update.
chas wrote:IMHO, Its not a problem, but YMMV.
I would contact the wheel mfg if you can, but of course the easy answer is don't do it.
But, realistically, keep within the pressure range for your wheel (which may vary a bit by the tire size). The other thing is - does it fit tight? If it fits loose, it can be a bit dangerous (especially on the front). I do use skinny strippers to ensure my tire doesn't burp if I have any doubt. If it is a tight bead on the tire, and if it pops solidly on the bead lock channel, you should be good to go.
I've used non tubeless tires on my hookless rims with no problem (using a skinny stripper for safety).
The hooks are on rims to ensure that the tire does not blow off at high pressure. You'll typically see tire manufacturers doing this if the max tire rating is over 60psi, because you can't go over 60psi when the max PSI is printed at 90+
I also use conti GP5000 hookless. There is no way that tire is going to blow off the rim - I'm doubting I can even get it off the rim when it wears out. It is labeled "for hooked rims only," but when a conti engineer was asked he said - oh you are fine if you stay under 5 bar - you just cant put 100+ psi in that tire without a hook.
I contacted Vittoria. Their official position is that only their MTB tires can be mounted on hookless rims. Not their road or gravel tires. I mounted the 38mm Terreno Dry G2.0 tires anyway. I needed tire levers, but I always do. Ran them yesterday at 35/30 no problems. However, I hate these tires. So slow on the pavement, and the slick center keeps them from hooking up under acceleration. I will be removing them.
I've worn out two sets of Terreno Drys. FWIW, I never ran more than 40psi with a 200lbs total weight (me, bike, stuff). I found that riding the tire with more pressure made them more uncomfortable, but no faster. You might try running something less than 50psi. May help mitigate some of your concerns with your hookless rims.
