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What size of tires for A719's?

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What size of tires for A719's?

Old 12-22-06, 05:12 AM
  #1  
bobbotron
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What size of tires for A719's?

Hey all!

I've just started to wear out a trusty set of 700x35c Nokia semi slick tires I've been touring on for a good while. I'm looking to replace them with something a little smaller and smoother. They were really handy on dirt roads and off road, but a little slow on the pavement, where I've been doing most of my touring. I'm thinking of replacing them with 700x32c tyres, but am also tempted by the specialized armadillo 700x28c's that are available in a local shop (there isn't much available around here (Whangarei, NZ)) which got me wondering if 700x28c's would be to small of a tire for the A719's.. Peter White's webpage says it would be alright, but I like double checking these things.

Thanks!
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Old 12-22-06, 08:18 AM
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Find out the interior width of the rim and check Sheldon Brown's website.

http://www.sheldonbrown.com/tire_sizing.html#width
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Old 12-22-06, 09:47 AM
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I don't know those specific tires, but it might work. Depends on the real width of the tires once you mount them. For your information, I have three of these rims:
- two have Continental Top Touring 2000 700x32 tires, which have a real width of 29,5 mm
- one has a Nokian 700x28 slick (model escapes me at the present), which has a real width of 28,5 mm.

I think I could go slightly smaller, but I would not go with a tire that has a real width of 27 or 27,5 mm because the tire would then be narrower than the rim and I would eat the rim on potholes. So the real question is "How wide would be the Specialized Armadillo?
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Old 12-22-06, 09:57 AM
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If all A719's are the same width I would say yes to the 28's. That's the combo on my 2006 Cannondale tandem.
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Old 12-22-06, 10:24 AM
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If you look at Sheldon's site it seems pretty marginal. It would need to have an internal width of 19 or less while the rim itself is 24.6 mm wide. So if you cut that back by around 5.5 for wall thickness and roll, you have 19MM, you have them so can measure them yourself. On that basis they just sneak by.

The Mavic site does list 28s as the lowest end choice, however I got the impresion that you would need to run them pretty hard.

The thing is that the 719 is a very heavy rim. It's about 4 ounces heavier than the Open Pro that would be a natural fit with 28-32mm tires at an external width of 20.2. Seems as though you would be better off with something smaller rim wise, or accepting you have and expedition rim and running something approaproirate like a 32 or higher. You could choose a low reistance tire like a Schwalbe marathon slick.
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Old 12-22-06, 03:05 PM
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Originally Posted by Peterpan1
If you look at Sheldon's site it seems pretty marginal. It would need to have an internal width of 19 or less while the rim itself is 24.6 mm wide. So if you cut that back by around 5.5 for wall thickness and roll, you have 19MM, you have them so can measure them yourself. On that basis they just sneak by.

The Mavic site does list 28s as the lowest end choice, however I got the impresion that you would need to run them pretty hard.

The thing is that the 719 is a very heavy rim. It's about 4 ounces heavier than the Open Pro that would be a natural fit with 28-32mm tires at an external width of 20.2. Seems as though you would be better off with something smaller rim wise, or accepting you have and expedition rim and running something approaproirate like a 32 or higher. You could choose a low reistance tire like a Schwalbe marathon slick.
Thanks! Yeah, I thought it was cutting it a bit close. I think I will go with 32's, as I reeeeallly like the wheelset I have on there right now. And with the 32's I can drop the PSI a bit for off roading, while with the 28s I'd have to keep them really pumped up all the time. Now I just have to order some 700x32c tires from one of the LBSs. Probably wont be able to get schwalbe's around here, but I'll see! Seems like all of the local shops carry vittoria brand tires.
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Old 12-22-06, 03:13 PM
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Schwalbes are pretty nice but any slick with a kevlar bead or wire beads should give you a really nice ride. A combination tread is also a good compromise for those off-road trails.
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Old 12-22-06, 03:25 PM
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look on the sticker on your rims. it should tell you the range of tire widths you can use.
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Old 12-22-06, 03:29 PM
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I run 28mm Conti Ultragatorskins on A719/A319 rims without any problems and without needing to keep the tyres at a particularly high pressure. If the tyre your considering compairs with the Conti then it'll be fine.
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Old 12-26-06, 03:05 PM
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On the Mavic site the widths are listed 28-50mm.
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Old 12-26-06, 04:39 PM
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for mavic x17 rims are nominal 17mm inside/22mm outside width; x19=19mm/24mm etc.

on my 519s i've run successfully for 1000s of miles sizes 26x1.25"-1.95"= 31mm-50mm.
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Old 12-26-06, 05:14 PM
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All summer I run Armadillo 28's on my 719's.
Great tires.
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Old 12-26-06, 06:58 PM
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Thanks for the info guys. Now I have to decide whether I actually want to go to 700x28, which is a pretty tricky question, I think. :/

GiantDave, thanks for the info. I couldn't find that on the Mavic site, good eyes.
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Old 12-26-06, 09:56 PM
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My A-719 rims have a decal that states - 28mm max 103psi. 37mm max 88 psi. That is obviously the tire size range.
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Old 12-27-06, 08:08 AM
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http://www.mavic.com/ewb_pages/p/pro...lte&annee=2007

Mavic tire size and recommended preasures from 28 to 50mm.

Your welcome, bobbotron!
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Old 12-27-06, 05:31 PM
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Originally Posted by GiantDave
http://www.mavic.com/ewb_pages/p/pro...lte&annee=2007

Mavic tire size and recommended preasures from 28 to 50mm.

Your welcome, bobbotron!
Great, thanks a ton man!
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Old 12-27-06, 05:47 PM
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Crap! I just ordered 700X40 Marathons XRs(2 nonfolding and 1 folding) and have Mavic A719s. The max says 37mm, will I not be able to use these tires?

Last edited by eric von zipper; 12-27-06 at 05:59 PM.
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Old 12-27-06, 06:07 PM
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Originally Posted by eric von zipper
Crap! I just ordered 700X40 Marathons XRs(2 nonfolding and 1 folding) and have Mavic A719s. The max says 37mm, will I not be able to use these tires?
The chart that Giant Dave posted goes up to 700x50, and the A719 is a pretty wide rim, you should be totally alright. But you should ask around, I'm just guessing.
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Old 12-28-06, 07:28 AM
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My A719's handled 40mm ok--so go for it!
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Old 12-28-06, 08:47 AM
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Originally Posted by GiantDave
My A719's handled 40mm ok--so go for it!
After reading this thread, I was looking at Sheldon's site and the sticker on the rim and then the Mavic chart contradicts both of those so it freaked me out a little bit. Good to hear that it works. Actually just recievied the other non-folding about 5 mins. ago. Wallbike only had one left so I had to order one from Schwalbe. Thanks.
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Old 12-28-06, 03:12 PM
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Originally Posted by eric von zipper
After reading this thread, I was looking at Sheldon's site and the sticker on the rim and then the Mavic chart contradicts both of those so it freaked me out a little bit. Good to hear that it works. Actually just recievied the other non-folding about 5 mins. ago. Wallbike only had one left so I had to order one from Schwalbe. Thanks.
Note that Sheldon says that the chart is pretty conservative.
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Old 12-28-06, 03:16 PM
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Originally Posted by amaferanga
I run 28mm Conti Ultragatorskins on A719/A319 rims without any problems and without needing to keep the tyres at a particularly high pressure. If the tyre your considering compairs with the Conti then it'll be fine.
Ditto on this setup.
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Old 12-28-06, 06:44 PM
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Originally Posted by eric von zipper
Crap! I just ordered 700X40 Marathons XRs(2 nonfolding and 1 folding) and have Mavic A719s. The max says 37mm, will I not be able to use these tires?
For fun I tried mounting one of my uncle's 700x45c pontoons on my front wheel (an A719.) Worked no prob! (And was lots of fun to ride.)

http://www.flickr.com/photos/bobbotron/336778087/
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Old 12-29-06, 07:56 AM
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Nice bike you've got. Glad to hear the big tire fits ok. Now go out and have fun!
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