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These tubes have presta valves!

Michelin
A2 Airstop Tube

  (33 customer reviews)
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An economical, high-quality tube with a proven track record for outstanding durability.

Michelin's A2 Airstop Tube delivers great value, backed up by Michelin's impeccable reputation. Fits 700c x 25/32mm (25/32-622 ISO) tires, with a 40mm smooth Presta valve. This tube will also work well with 27" x 1 1/4" tires.

 

Weight: 120 grams

 

Tube Type: Butyl 

 

ISO (ETRTO) Size: 25/32-622 

 

Made in: France 

700x25/32 40mm Smooth Presta

Valve Stem: 40 mm Presta 

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No problems.
rating
by Anonymous
0 of 1 customers found this review helpful.

No problems. Check your valve stem length.

Reviewed 4/20/2015
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Valve stem should have a threaded lock washer. They cut this feature out. Now the stem can wander.
rating
by studiocaputo
Cycling Enthusiast
frisco
2 of 6 customers found this review helpful.

Otherwise, a serviceable strip of rubber.

Reviewed 10/14/2013
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so far so good.
rating
by Anonymous
0 of 3 customers found this review helpful.

No flats so far.

Reviewed 9/20/2012
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Hard to find smooth stem
rating
by DonWA
Cycling Enthusiast
Palatine, IL
3 of 3 customers found this review helpful.

I only use smooth stem tubes on my bikes as they do not tear up the o-ring seal on my pump. I still have not figured out why the unneeded threads were ever put on stems in the first place. Smooth stem tubes in this size are almost impossible to find. However they are available here at a decent price. As long as they continue to be available here I'll keep coming back. These are good quality tubes too. I have been using them for many years and have never had a flat due to a fault of the tube.

Reviewed 3/20/2017
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Tube
rating
by Phatfish7
Pompano Beach

Not a bad tube for the price. I have ridden Ive 1000 miles and no problems. It holds air!

Reviewed 7/27/2018
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Reliable tubes
rating
by Travelguy
Cycling Enthusiast
Texas

Install new tubes and forget about them.

Reviewed 7/17/2018
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A Perfectly Fine Tube
rating
by ericf
Cycling Enthusiast
Upstate NY

I run tires between 25 and 32mm, and these tubes are my go-to for all of them. My rims go up to 30mm depth, and I think that up to 4-5 more mm would still work fine. Not much to report, as I've had zero problems with these tubes and haven't gotten any flats lately.

Reviewed 5/21/2018
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Very reliable for everyday use .
rating
by Larry
Simsbury , CT
1 of 1 customers found this review helpful.

We use these tubes in a bike share fleet .

They hold air well and do not flat as often as other brands that we have tried . I can never remember ever having a split at the seam which is note worthy .

Reviewed 6/5/2017
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Tubes !
rating
by Kerry
Michigan
1 of 1 customers found this review helpful.

Great for people like myself that hang on to older bikes. Sooner to later you need new tubes. These cover the issue.......

Reviewed 4/12/2017
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Amazingly reliable tubes
rating
by Wayne Clark
Cycling Enthusiast
Washington, DC
1 of 1 customers found this review helpful.

I have been using Michelin A2 AirStop tubes on my Schwalbe Marathon Supreme and Marathon Plus on my touring city bike for the past 8 years. I have had only 2 punctures in that time.

The first puncture was on my first ride with this tube tire combination because the shop mechanic who installed them had left a piece of wire inside the tire. My first ride was a 200k randonneuring ride and the wire inside the tire wore a hole in the tube after about 75 miles of riding. I replaced that tube with another AirStop and ended up getting 8,000 on that set of tires and tubes without any more flats.

The second puncture was on my second set of tires and happened because I ran over a horseshoe cleat and 2 nails punctured my front tire. Even though the nails went all the way through the Schwalbe tire into the tube, I was still able to ride my bike 2 miles home and never even had to add air to the tube on the way.

I originally discovered these tubes not because of their resilience, but because of their smooth valve stem. I have been riding tubes with Presta stems since the early 1970s and worn out several pump head gaskets on threaded stems. I switched to Michelin AirComp (700x23c) on all of my road bikes and Michelin AirStop (700x32c) on all of my city and touring bikes. Those are the only tubes I will buy.

Reviewed 2/13/2017
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Best tubes you can buy
rating
by OaktownCyclist
Cycling Enthusiast
Oakland, CA

Holds air better than the competition. Reasonably puncture resistant. Only knock is the cost compared to others (Kenda, et. al).

Reviewed 1/2/2017
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A good tube but . . .
rating
by Anonymous

Bought 4, 3 have worked well with no problems. One of them ripped a hole too big to patch when it was unfolded.

Reviewed 12/12/2016
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QC lacking
rating
by onymus
Cycling Enthusiast
NoCa&40not coastal central&41
1 of 1 customers found this review helpful.

Disappointed in rubber quality and spot thinness that resulted in little tube aneurisms, one of which ruptured, flatting me on dirtgravel.

Reviewed 4/7/2016
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I like the threadless stem
rating
by mdonald9
Cycling Enthusiast
Edmonds WA
1 of 1 customers found this review helpful.

I've used Airstop 700x18/23 tubes for years. They seem to have a good balance between weight and durability and I like the threadless stem since it doesn't tear up the pump fitting. I recently switched to 700x25 tires and moved up to the 700x25/32 Airstop tubes. They seem bulky relative to the tire size and tube changes don't go as smoothly. I think the weight to durability ratio is probably not as favorable, but I can't say that's translated to any noticeable difference riding. I do find the 700x25 tires incredibly comfortable so will not be going back, but might try other tubes if something catches my eye.

Reviewed 4/6/2015
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Great Tubes for Cross Tires
rating
by MG_Chicago
Cycling Enthusiast
Chicago, Illinois
4 of 5 customers found this review helpful.

Great tubes for the bike. They aren't too heavy but provide a good overall feel in the tires. I buy these mostly because I like that Michelin A2 Airstop Tubes have the smooth valve option instead of the threaded valve. These tubes generally resist punctures well but no tube is puncture proof or snake bite proof.

Reviewed 12/8/2014
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Cheap but unreliable
rating
by Steveo
New Haven, CT
3 of 7 customers found this review helpful.

About 1/4 of the ones I've bought are defective - weaknesses in the wall cause some areas to balloon out. The others work just fine.

Reviewed 10/21/2013
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Reliable tubes!
rating
by EverydayJoe
Casual Cyclist
Sacramento, Ca.
1 of 2 customers found this review helpful.

I used these tubes for years, then I quit biking for awhile. When I came back to it I tried some cheaper tubes to save a little money...big mistake. Of the 20 I bought, 5 had valve issues imediately and the rest made it one or two rides at best. My ride takes me through an industrial area (most of the way), but still. I went back to the A2s and I'm very happy with the quality and durability.

Reviewed 10/7/2013
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Great tubes.
rating
by tracya
Cycling Enthusiast
Seattle, WA

Great tubes. I especially like the fact they aren't threaded.

Reviewed 11/5/2014
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A good, decent product used for its intended purpose.
rating
by TokyoJoe
Cycling Enthusiast
Chi-town
3 of 4 customers found this review helpful.

I bought it for its smooth presta valve and works just fine for an easier on/off during inflation.

Reviewed 9/5/2014
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Great tubes, probably the best bet for the price
rating
by OaktownCyclist
Cycling Enthusiast
Oakland, CA
1 of 2 customers found this review helpful.

Great tubes. You really do end up filling up less.

Reviewed 6/19/2014
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