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Is there a rough known flow rate required to seat tubeless tires?

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Is there a rough known flow rate required to seat tubeless tires?

Old 09-08-17, 03:33 PM
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redfooj
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Is there a rough known flow rate required to seat tubeless tires?

so far ive been seating my road tubeless tires with co2 cartridges.

thinking about buying a portable air compressor - the ones meant for cars.

theyre rated from 15L/min to 35L/min. i have no idea how to relate those rates. the bike-specific charge canisters such as lezyne overdrive...dont list their rates so i dont know if the portable compressors will be sufficient
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Old 09-08-17, 03:55 PM
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If the CO2 works, what's wrong with it? Unthreaded 12g carts can be had for $0.50 each if you look hard enough. $0.67 is easy to find.
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Old 09-08-17, 04:01 PM
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Originally Posted by rpenmanparker View Post
If the CO2 works, what's wrong with it? Unthreaded 12g carts can be had for $0.50 each if you look hard enough. $0.67 is easy to find.
our amazon is not as good as your amazon.com
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Old 09-08-17, 04:03 PM
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Originally Posted by redfooj View Post
our amazon is not as good as your amazon.com
Aha! Didn't notice Yourope.
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Old 09-08-17, 07:22 PM
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https://www.airshotbike.com/products...eless-inflator


They say that holds 1.15 L of air and from the video it looks like it takes less than 5 seconds to let all the air out. You can timestamp the video and do the math if you want.
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Old 09-08-17, 07:54 PM
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Depending on your tire and rim...tubeless tires might snap in place with a floor pump.

But it really varies with how big a tire you're dealing with. I have a nice Hitachi compressor...but to get enough flow for seating 40mm tubeless tires requires removal of the valve core, the Presta core just bottlenecks the flow too much. Whereas 28mm roadies need the compressor, but 23s or 25s on narrower rims can snap in place with a pump.
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Old 09-09-17, 12:30 AM
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My 25c Schwalbe wont Seat with a Silca track pump with either valve head. Standard stroke pump and I can push it decently.
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Old 09-09-17, 12:34 AM
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Originally Posted by DXchulo View Post
https://www.airshotbike.com/products...eless-inflator


They say that holds 1.15 L of air and from the video it looks like it takes less than 5 seconds to let all the air out. You can timestamp the video and do the math if you want.
It's 1.15L in capacity at standard temp-pressure but there are more moles of O2 inside to pressurize the canister no?
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Old 09-09-17, 03:03 AM
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If it is only a small compressor you need it to have an air resevoir/accumulator. Then you can get a good volume of air quickly from that rather than relying on the meager capacity of the compressor.
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Old 09-09-17, 10:10 AM
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This site tested out a number of flash chargers and measured the flow. Unfortunately, the seem to have only tested with the canisters at 60psi - I would have liked to have seen them tested at higher pressures (I have the Specialized one and usually pump to 120-140psi when setting tires).
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Old 09-09-17, 10:34 AM
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Great link above. Thanks. Seems like the 6L/s was hit or miss but others were fine so prob 10L/s is threshold
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Old 09-09-17, 11:29 AM
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Make sure your compressor has a storage tank and isnt intended to compress directly into the tire.

Almost anything with a storage tank, even 2 liter, will work. People make storage tanks out of all kind of rube goldberg setups... but honestly, just get a small trim compressor and be done with it.

$59 (us) for a 3gal campbell housefield bullet: https://amzn.to/2xlPFaT

$67 (us) for a 3gal noname pancake: https://amzn.to/2xWy7PB

$48 for a 3gal noname pancake: https://amzn.to/2xmyyWw

Last edited by nycphotography; 09-09-17 at 11:38 AM.
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Old 09-11-17, 08:56 PM
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Originally Posted by nycphotography View Post
Make sure your compressor has a storage tank and isnt intended to compress directly into the tire.

Almost anything with a storage tank, even 2 liter, will work. People make storage tanks out of all kind of rube goldberg setups... but honestly, just get a small trim compressor and be done with it.

$59 (us) for a 3gal campbell housefield bullet: https://amzn.to/2xlPFaT

$67 (us) for a 3gal noname pancake: https://amzn.to/2xWy7PB

$48 for a 3gal noname pancake: https://amzn.to/2xmyyWw

+1 Just don't leave it out in the rain.

For lifetime & low noise:
https://www.amazon.com/Makita-MAC700...air+compressor
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Old 09-11-17, 10:38 PM
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Originally Posted by woodcraft View Post
THIS!^^^^^^

This is leaps and bounds better than any oil-less compressor in its size or price range.

That said, I've had good luck seating tubeless with a floor pump.

It is impressively quite.

Last edited by Kapusta; 09-12-17 at 01:47 PM.
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Old 09-12-17, 06:04 AM
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I LOVE the Makita compressors. If I'm buying one that will be used a lot, I'm probably spending the extra to get the Makita. If you can afford it, get the MAC700 for sure

When I'm renovating I drag a DeWalt D55146 to the property w 300' of hoses.

But if all I'm going to do is inflate some tires now and then, the el-cheapo should be fine.
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Old 09-12-17, 07:56 AM
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Originally Posted by Kapusta View Post
That said, I've had good luck seating tubeless with a floor pump.
same, but only for cyclocross so that usually means enough tape to make the tire nearly impossible to mount to minimize burping. With a tight interface and removable valve cores a floor pump works well
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Old 09-12-17, 12:07 PM
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Originally Posted by woodcraft View Post
+1 Just don't leave it out in the rain.

For lifetime & low noise:
https://www.amazon.com/Makita-MAC700...air+compressor
Dang...50lbs for a 2 gallon compressor?

My Hitachi double-stack (older version, but same basic thing) is 4gal and weighs just as much. Granted, it is not quiet.
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Old 09-12-17, 12:50 PM
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It's 50lbs... but it's a compact easy to carry 50 lbs.

Where my pancake is lighter, but it's wide and ungainly to carry, making it's effective weight higher than its actual weight.

And the DeWalt is a very awkward 80 lbs that I cuss at every time I have to load and unload it.
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Old 09-13-17, 01:02 AM
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Originally Posted by Marcus_Ti View Post
Dang...50lbs for a 2 gallon compressor?

My Hitachi double-stack (older version, but same basic thing) is 4gal and weighs just as much. Granted, it is not quiet.


I get fooled regularly- because it's small, I think it will be light, & it's just not.

At one time I had a similar hot dog oil-less compressor that I could pick up w/ a pinkie finger, but guess what happened to it?
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Old 09-28-17, 02:21 PM
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https://www.walmart.com/ip/Hyper-Tou...ssor/188025595

I had around 1000 sqft of flooring to trim out (base shoe), so I picked up one of these for $44 at Walmart expecting it to be miserable. The plan was to suffer through and then swap it with the larger Bostich 6 gal pancake for construction and keep this tiny thing for bikes and very small jobs.

But it did a respectable job for $44. Yeah, it cycled a lot, but it never ran low enough that I had to stop and wait for it. And I could just carry it from room to room easier than I could drag 300' of hoses around from the big pig DeWalt.

It will be perfect for tubeless bike tires and blowing out computer keyboards, etc. Not sure how it will do on a car tire tho lol
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Old 09-28-17, 02:25 PM
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I've been using this <$10 sprayer conversion to seat my tubeless cyclocross tires. Works great
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Old 09-28-17, 03:54 PM
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Now that's a cool outside the box approach.

Plus, when you get done seating your tires, you can wage war on the cockroaches.
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