seb1041

I just purchased Hunt 50mm aero carbon wheels and it it says in bold to only fit with new tires as used ones that were on a different set of wheels could sit weirdly on those and maybe demount.

I have a set of pirellis that are almost new that I would like to put on. Is it really that dangerous?

chaadster

Whoa. I’ve never heard of that kind of concern either. Are the Hunt hookless?Either way, while there may be a risk, and particularly for hookless, I’d think it’s very low, especially with relatively new tires.

I’d mount the Pirelli were they mine.

masi61

Perhaps they are referring to already used tubeless tires? Might be that any dried sealant around the bead will give hit or miss air holding so Hunt wants its customers to not run into those types of snags?

seb1041

They are not hookless no. I'm at the same place. Still weird that they take the time to write this in bold letters.

easyupbug 

If I was mounting for my brother-in-law who putts around the neighborhood I would mount, for a son-in-law who bombs down a serious decline with a sharp 90º at the bottom probably not.

chaadster

Probably some nob who mounts tires with a butter knife put damaged tires on their wheels and tried to sue them.

shelbyfv

What they say

KerryIrons

Pretty thin ice if their mounting is shavings things that close. Yes, tires that have been mounted are easier to mount the next time, but the differences in wheels are not that great. It sounds like the legal department talking. Either that or these wheels are prone to tire blow-off. If that is the case, I would chose another brand of wheel.

70sSanO

Don’t get a flat.

John

Troul 

if you ever had to dismount the new tires or they roll off the bead for any reason, that seems like it would become a rather expensive experience pretty quickly. Also, where would the rider stow the additional tires for each flat?

Geesh!


Aside from all that, unless I am hard up for cash or the tires I want are not readily available, I would always run new rubber. If I had the parts & didnt use them, that'd almost be like taking a shower & putting on yesterday's undies...

Iride01 

If they are a new wheel set, why would you want to put used tires on them. Even if my tires were obscenely priced I would not take them off one wheelset to put on another. I'd buy new obscenely priced tires for my new obscenely priced wheels.

Quit being a skinflint! <grin>

seb1041

Yeah the thing is my wheels became unusable just a couple of weeks after I put on those tires so they are practically new.

PeteHski

It was use on a DIFFERENT wheel set that was the potential issue. So dismounting and re-mounting should not be a problem

Troul 

that tells me the OEM's wheel tolerance may be subject to a QA concern & if it is, they might want to designate which tire types, brands, & models the customer would need to run so the consumer doesn't misuse tires onto the wheelset.

70sSanO

When I posted not to get a flat, I realized Hunt made a distinction between removing and mounting an old crappy set of tires on their same Hunt rim vs nearly new high quality tires mounted on a different rim.

In essence I could mount and re-mount Walmart tires on the same Hunt rim.

John

79pmooney

Just for a little perspective - I put a used but plenty of tread Forte tire on a Velocity Aero rim for a quick ride; 10 miles each way int town on roads I know like the back of my hand. Rear tire. Easy mount but that was to be expected. Uneventful ride other than encountering another cyclist and each of us upping our speeds on the gentle couple of miles of Portland's wonderful parkway. Then past the park at the bottom, a very gentle downhill. I was well in front of him when "POW" that rear tire blew off the rim. I immediately found myself riding on the aluminum rim; just like riding on ice. Nearly as quickly, I was in ice mode with a gentle grip in the bars trying to negotiate the gentle left bend in the road and stay off the adjacent curb, bleeding my speed down just as gently. (I had many winters of practice in my no-car days in Boston anen Ann Arbor.) This was working until the tire came off entirely and jammed in the seatstay.

I was immediately tossed over the bars (that gentle ice grip) still doing 20+ mph. Broken collarbone, hard helmet hit, cracked ribs (or broken; I kept my mouth shut to save money and at least 4 chest X-rays - knowing full well the treatment would be "there's little we can do. They will heal on their own and be painful for a while". Plenty of road rash. I flipped over after hitting and had additional road rash on the other side.

Lesson? The consequences of a clincher tire coming off are (for me) completely unacceptable.

(And funny - as I left the sports med ortho's office after my follow-up visit, he mentioned my broken ribs. "How did you know? I didn't say a word about them." "You said it hurt to breath" when I was admitted to the clinic. I said I didn't mention it because of what I said above. He laughed and said "yup!".)

Barry2 

Dental Co-pay $50
New Tire $65ea

You can buy a lot of piece of mind for $15
or even
$80 if you need a new pair.

Barry

Wildwood 

I ride quality tires for good peace of mind and my piece of butt's good. Follow the advice of the manufacturer is my recco.

but I have to agree with 79pmooney about the tubulars. Safer at speed when properly glued, especially if descending on gravel.

70sSanO

I found the Hunt warning.

It indicates not to use tyres fitted to a different “wheelset” because they may have stretched in use causing an insecure fit on your Hunt wheels.

I guess the “your” wheelset means the specific wheelset in hand, not any other, even identical Hunt wheelset.

It does make one wonder if the tire stretches more on a single mount/removal on a different wheel vs. multiple mounts/removals/re-mounts on the same wheel.

And would there be an issue moving a front tire to the rear wheel on the same wheelset?

I’ve never encountered insecurity issues with my tires. I always thought if you keep a pair of tires on the same bike they would have each other, but I guess it goes deeper than that.

John

PeteHski

I'm not sure how you came to that conclusion? I would just take it as general advice not to swap tyres from one model of rim to another because the first rim could have been a larger diameter and stretched the tyre more. Some rims are definitely tighter than others by design.

PeteHski

The point is that the different wheel is a totally unknown quantity as far as Hunt are concerned. You know how some tyre/rim combos are ridiculously tight, while sone others pop on with hardly any effort at all.

To me it seems like a sensible piece of advice not to swap tyres between different rims for this reason. Re-mounting a tyre back on the same rim is a lot less risk because at least you are stretching it over the same diameter and not potentially a smaller one.

If the OP was feeling lucky, then a clue might be how easily those used Pirellis fit on the Hunt rims. If they are a really tight fit then that would be a positive sign. But if they slip on with little effort, maybe not so good. But personally I wouldn't risk it based on the bold warning. It's obviously bitten them before.

Kedosto

If they made the effort to spell it out in bold lettering, I’d probably pay particular attention. Take those “almost new” tires and sell them to help offset the cost for a new set.
Or, take the money you would have spent on the new set of tires and set it aside to help offset your deductible for any potential maxillofacial surgery, or what you might need for a wheelchair.

70sSanO

Everyone knows there are good and bad combinations.

So why isn’t this standard language for every rim manufacturer?

That is the real point.

What makes this an issue for Hunt?

If I were the OP, there is not a chance I would use a used tire with Hunt rims. They obviously know something about their product we don’t know.

John

jaxgtr

I transferred my Pirelli P Zero Race TLR to my new wheels and they had about 1500 on them when I moved them and had zero issues.

Sy Reene

Smarter lawyers?