Just finished cleaning the glue off 2 Zipp wheels with just Goof Off Pro and a shop rag. The old glue was still pretty tacky so not old chalky dried up glue. I finished both wheels with no residue at all on my lunch break, about 30 minutes. Much easier than what I thought it would be. Surface is really nice and clean like new. Now just waiting for my glue and tires to come in. These are my first tubs so I was intimidated at first by what other people were saying. Taking off the tires was super easy too. But I am an auto mechanic by trade so very mechanically inclined which might have helped.
I got my 303 rim clean enough (it still has residue and it did take a good 4-5 hours of concentrated work) - I had to use goof-off to soften the glue and then had to scrape the glue into little piles with a razor blade that I could then start to lift/remove. I then used the scotch-brite pad which worked a little better than cloth. Tthe pad left a bunch of blue strands on the residue area and holes of the rim. Maybe the person prior to me used too much glue - but its Tufo Tape for me!
The link you provided proved what you said to be wrong, as the dimple effect decreases the amount of wake caused by the air upon its exit from the foreign object in the wind's path. Therefore the dimple effect used with Zipp's wheels have a smaller wake than if they did not use the dimple effect. The wake will also be more stable when a dimple effect is incorporated into an object that has been designed to be aerodynamic. So why should they be tired of their design?
Yes, as long as the tire, tread and base tape are still in good shape (no tears or pealing). Check the side walls and valve stem too before going through the effort of re-gluing them.
I guess you missed this sentence: "The reason we do not see dimples on other shapes, like wings, is that these particular forms of boundary layer trips only work well on a blunt body like a sphere or a cylinder." So the dimples work well on edges of things and profiles that are round. The dimples on a disc wheel are on the sides of a flat disc. A disc wheel is neither a sphere nor a cylinder. If you don't get it, ask someone who understands a little about physics. Or shapes.
The time required may to clean the rim may be a function of how long the glue has been present on the rim, i.e. older tires/glue require more time than newer.
Unless, I'm doing something drastically different than what's described in this video. This is NOT a 30-45 minute task. This is more like 4-8 hours of heavy, heavy elbow grease with Acetone or Goof-off to get any semblence of a clean surface. Goof-off seems to be better than acetone. I'm going to try a rougher pad than a cloth. I get the impression - that Zipp quoted less time to not negatively impact tubular rim sales! I spent an hour with little success.
I’m with you on that. Acetone is shite, flashes off too quickly. Goof-off isn’t available widely here in Scotland. Last time i did this I used petrol and a handful of grey scotchbrite pads. I don’t use zipps, I’m on Enves but the principle is the same.
I actually bought a pair of tubular rims and apparently people confuse them with tubeless tires, they had tubeless liquid inside as I was taking them off for replacement. “Tubular “ not Tubeless
No, they are not a purpose built company who do not sell on looks. Quite the opposite. I work at a place where we have 3 disc wheels from different brands cut open that we refer to often. Trust me, there's nothing special about Zipp wheels, they just have a good marketing engine and lots of dollars to spend on advertising. It sets their wheels apart from others. Nobody imitates it because A: it costs more to make it B: gives no real benefit and C: it increases the relative weight for strength.
This method is crazy. There is a simple mechanical method to remove the old glue in few minutes without stinking chemicals. Use a drill with felt polishing disk.
That sucks so much, I am doing that to a rim, so after this never again Ill use tubular tires. Ill probably get rid of my carbon tubular rims. This sucks so much.
or you can race a fast crit in the rain and in the resulting crashes, from locking up your brakes a few times, your tire will peel right off (speaking from personal experience, of course) LoL
Hmm, yeah I understand it perfectly well as I am a science student at school, not basic stuff. Well then why do they make use of this 'dimple-effect' claim in their marketing ads to increase sales if it doesn't do anything, they are a purpose built company who do not sell on looks etc. I am sure the effect makes a minuscule difference otherwise i would be a waste of time.
Just finished cleaning the glue off 2 Zipp wheels with just Goof Off Pro and a shop rag. The old glue was still pretty tacky so not old chalky dried up glue. I finished both wheels with no residue at all on my lunch break, about 30 minutes. Much easier than what I thought it would be. Surface is really nice and clean like new. Now just waiting for my glue and tires to come in. These are my first tubs so I was intimidated at first by what other people were saying. Taking off the tires was super easy too. But I am an auto mechanic by trade so very mechanically inclined which might have helped.
I tried acetone and took forever. Then I used vapor/steam from a ironing machine and really gave me good results
eduardo sanchez maymi No shit! Really? That’s cool. I’ll try that.
I got my 303 rim clean enough (it still has residue and it did take a good 4-5 hours of concentrated work) - I had to use goof-off to soften the glue and then had to scrape the glue into little piles with a razor blade that I could then start to lift/remove. I then used the scotch-brite pad which worked a little better than cloth. Tthe pad left a bunch of blue strands on the residue area and holes of the rim. Maybe the person prior to me used too much glue - but its Tufo Tape for me!
The link you provided proved what you said to be wrong, as the dimple effect decreases the amount of wake caused by the air upon its exit from the foreign object in the wind's path. Therefore the dimple effect used with Zipp's wheels have a smaller wake than if they did not use the dimple effect. The wake will also be more stable when a dimple effect is incorporated into an object that has been designed to be aerodynamic. So why should they be tired of their design?
Yes, as long as the tire, tread and base tape are still in good shape (no tears or pealing). Check the side walls and valve stem too before going through the effort of re-gluing them.
I guess you missed this sentence: "The reason we do not see dimples on other shapes, like wings, is that these particular forms of boundary layer trips only work well on a blunt body like a sphere or a cylinder."
So the dimples work well on edges of things and profiles that are round. The dimples on a disc wheel are on the sides of a flat disc. A disc wheel is neither a sphere nor a cylinder.
If you don't get it, ask someone who understands a little about physics. Or shapes.
The time required may to clean the rim may be a function of how long the glue has been present on the rim, i.e. older tires/glue require more time than newer.
I enjoy this video even though I already know how to do this. What a great host!
Unless, I'm doing something drastically different than what's described in this video. This is NOT a 30-45 minute task. This is more like 4-8 hours of heavy, heavy elbow grease with Acetone or Goof-off to get any semblence of a clean surface. Goof-off seems to be better than acetone. I'm going to try a rougher pad than a cloth. I get the impression - that Zipp quoted less time to not negatively impact tubular rim sales! I spent an hour with little success.
I’m with you on that. Acetone is shite, flashes off too quickly. Goof-off isn’t available widely here in Scotland. Last time i did this I used petrol and a handful of grey scotchbrite pads. I don’t use zipps, I’m on Enves but the principle is the same.
I actually bought a pair of tubular rims and apparently people confuse them with tubeless tires, they had tubeless liquid inside as I was taking them off for replacement. “Tubular “ not Tubeless
I'm sure you cracked the seal before you started!!
What!! For me am working on a swchalbe tire that i wrecked on the side wall and it won't come out. It came out so easy for you
Just tried Goof Off. Takes way too long. Maybe I need a good brush or something. I'm going to try the acetone next.
I use goo-gone and it takes me 45 mins to get it spotless, takes maybe 2-3 applications
Can you reuse the tubular tire still after you removed it
Yes
No, they are not a purpose built company who do not sell on looks. Quite the opposite.
I work at a place where we have 3 disc wheels from different brands cut open that we refer to often. Trust me, there's nothing special about Zipp wheels, they just have a good marketing engine and lots of dollars to spend on advertising.
It sets their wheels apart from others. Nobody imitates it because A: it costs more to make it B: gives no real benefit and C: it increases the relative weight for strength.
whats the name of that chemical again?
Acetone
This method is crazy. There is a simple mechanical method to remove the old glue in few minutes without stinking chemicals. Use a drill with felt polishing disk.
got some 404 as my first zipps... guys i went from 1.6kg (alu) to 0.6kg on rear wheel... lol :´D what a wild ride now
What about isopropyl alcohol? All my mechanics say acetone is EXTREMELY bad for carbon.
Chris James Well if anything else voids the warranty...
Uh it doesn't go anywhere near this easy
What does he recommend for solvent at 1:43? Aceton or ???
That sucks so much, I am doing that to a rim, so after this never again Ill use tubular tires. Ill probably get rid of my carbon tubular rims. This sucks so much.
Same for me right now, removing my front tubular and swapping out w clincher and after my back tubular pops I’m getting a new rim set
😂 😂 😂 🤡
or you can race a fast crit in the rain and in the resulting crashes, from locking up your brakes a few times, your tire will peel right off (speaking from personal experience, of course) LoL
Hmm, yeah I understand it perfectly well as I am a science student at school, not basic stuff. Well then why do they make use of this 'dimple-effect' claim in their marketing ads to increase sales if it doesn't do anything, they are a purpose built company who do not sell on looks etc. I am sure the effect makes a minuscule difference otherwise i would be a waste of time.
Lesson learned, don't use tubulars
That's not a tire I'd like to be riding
Of course he didnt use a road bike wheel.
2:54
nice guy.... :D
Goof off !