The Riding Gravel Forum

Vittoria Terreno Zero and Dry, 700c and 650b Gravel Tires
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Starter 7 posts overconfident Starter 7 posts
overconfident
Apologies for the new thread, there's another post on this, but there's relatively little info there and Terreno is spelt Torreno, so it isn't easily found via searching.

So, I'm interested in the Terreno Zero and Dry, particularly the former, but the sizing is stupidly confusing!

So in the other thread, the OP has some Terreno Zero that say 700x35c on the package, 700x37 on the sidewall, but measure out at nearly 42mm straight out of the box?! There pic:

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It's now more confusing as the Vittoria site no longer lists a 35(37) model, instead listing a 32(32), 35(37) and a 38(40).

And then the 650b model, which used to say 40 and 47 but now they've settled on 650x47.

So given the 700c Zero and Dry are both oversized, does anyone have a real world measurement of the 650b models fitted?
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overconfident Starter 7 posts
overconfident
Oh, and what are the Zero's like...? (compared to other big slicks, Gravelking Slick, G-one Speed, Maxxis Refuse, etc.)
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smoothmoose Senior Member 210 posts
smoothmoose
I think you should call/email Vittoria.  It is hella confusing.  I think they may have updated some of the sizes/SKUs based on their new Graphene 2.0 release from a month ago.  Deal and sales of tires online are probably for the previous gen rubber to further confuse things.

Very intriguing tires - a bit on the heavy side, but they probably pay off in durability.  I ended up getting the GravelKing slicks instead - which have their own sizing issues (700-38c sidewall, but 40-622 ETRTO).

WTF?
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fastonflats Starter 12 posts
fastonflats
We are spec'ing the Terreno Dry in a 650b x 47 on our MY20 Breeds. I have them mounted to rims with 21mm inner width and they measured 48.25 at 30psi.

I also measured the same tire in the 700c x 33 size on the same rim in a 700c version and the tires measured out to 35.5.

Vittoria may be doing some house keeping to get the numbers to align better with the actual casings being used.

Either way, the dry version has been one of my favorite tires to date for mixed surface riding.
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senorsquare Starter 2 posts
senorsquare
I had some Terreno Zero 650x47's mounted on 23.5mm internal rims that ballooned to almost 51mm wide.  YMMV.
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jhueber1 Member 57 posts
jhueber1
@senorsquare how did you like the 650b Zero's? I'm always looking to try new tires on my Gorilla Monsoon and the fatter the better.  
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smoothmoose Senior Member 210 posts
smoothmoose
All - any further reviews feedback on the Terreno Zero?  I'm looking to replace my GravelKing slicks which are light, but wear fast.

What wear life you guys getting?

What sizes have you tried and how do they measure IRL (I have both i23 and i25rims)?

Are you on the Graphene 1.0 or Graphene 2.0.

I have easy clearance for 42mm+, but I'm more curious about the 35mm (37-622) and if they balloon to 37-38mm as I'll like to keep my slicks wheelset relatively light.
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jhueber1 Member 57 posts
jhueber1
I've got the Zero's in 650b form.  They are probably my favorite tire I've had on my Gorilla Monsoon so far.  They roll fast and are plush AF.  I do think they measure wider than the stated 47mm, also think they are the Graphene 2.0.  I'm leaning on getting some more Vittoria tires on the 700c range for my All-City Nature Boy also.  
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smoothmoose Senior Member 210 posts
smoothmoose
jhueber1 wrote:
I've got the Zero's in 650b form.  They are probably my favorite tire I've had on my Gorilla Monsoon so far.  They roll fast and are plush AF.  I do think they measure wider than the stated 47mm, also think they are the Graphene 2.0.  I'm leaning on getting some more Vittoria tires on the 700c range for my All-City Nature Boy also.  


Good to hear - did you ever weigh them before mounting?  Close to spec?
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jhueber1 Member 57 posts
jhueber1
I did not weigh them
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overconfident Starter 7 posts
overconfident
I had an original 650 Terreno Zero out back and a Terreno Dry G2.0 up front.

The Dry came out at about 52mm wide, but that's on a very wide (29mm internal) rim

The Zero on the rear measured up at 50mm ish, on a 21mm internal rim.

They were great, and I've got the 700c G2.0 Dry versions now I ditched the 650b wheels. Again oversize: they say 38 on them but measure up at around 42mm on my 25mm internal width rims.

Quote:
All - any further reviews feedback on the Terreno Zero? I'm looking to replace my GravelKing slicks which are light, but wear fast.


Another good option I ran was a 48mm Gravelking slick up front and a Maxxis 50mm Refuse at the rear. It balanced the wear nicely, as the Refuse is super tough, and they both came out at around 49mm. And they look the same aesthetically, which was nice (there's no big yellow Maxxis logo on the Refuse)
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smoothmoose Senior Member 210 posts
smoothmoose
overconfident wrote:
I had an original 650 Terreno Zero out back and a Terreno Dry G2.0 up front.

The Dry came out at about 52mm wide, but that's on a very wide (29mm internal) rim

The Zero on the rear measured up at 50mm ish, on a 21mm internal rim.

They were great, and I've got the 700c G2.0 Dry versions now I ditched the 650b wheels. Again oversize: they say 38 on them but measure up at around 42mm on my 25mm internal width rims.

overconfident wrote:


Another good option I ran was a 48mm Gravelking slick up front and a Maxxis 50mm Refuse at the rear. It balanced the wear nicely, as the Refuse is super tough, and they both came out at around 49mm. And they look the same aesthetically, which was nice (there's no big yellow Maxxis logo on the Refuse)


Great feedback.  How much mileage did you get out of the them?

Yes, I'm going to consider both the 38mm or 35mm in 700c.  My current GK 38mm stretch to 39mm on i23 rims.  But got new i25 rims now, and based on this feedback, sounds like pretty much all Terrenos are also larger than speced.  So hoping the 35mm will balloon to 38mm.
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overconfident Starter 7 posts
overconfident
Quote:
Great feedback. How much mileage did you get out of the them?


No worries. Can't say much about mileage I'm afraid, as I changed the 650 wheels after only a few hundred miles on them.

And the 700c are awaiting their first ride due to some horrendous weather over here even by British standards...!

I've heard very good things about this Graphene stuff and wear rates though
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Masshoff Starter 14 posts
Masshoff
I have the Zeros in 700x38. They measure 41mm on a set on Enve M50 rims. They are great tires - grippy, fast and supple. They replaced a set of GK SK of the same size. I liked the GK but the Vittoria feels and performs like a better tire. I have around 1000 miles on my set, including racing Grinduro Canada, and they have been trouble free. Very easy tubeless setup, as well.  
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smoothmoose Senior Member 210 posts
smoothmoose
UPDATE: Terreno Zeros 700x35 G2.0.  So UNLIKE the OP here it appears their G2.0 tires are closer to true-to-size.  On the side it actually states recommended rim width of 21mm and the ETRTO is 37-622.  On my i25 rims they blow up to 35mm 40psi and 37mm @80psi.

HOWEVER - also on the sidewall they state "Mount only on hooked rims".  But I have hookless rims.  I'm checking with Vittoria if these are still safe...probably not.  So likely I'll be selling these brand new tires.  PM me if any of you are interested and in the USA.

Also tires are pretty close spec on weight, with some variance.  One weigh in at 404g and the other 442g.
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chas Senior Member 1,305 posts
chas
I've run "hook only" tires on hookless rims.  In my experience:
- its harder to mount some of them on hookless rims 
- Max PSI is the less of the max of the tire and the rim.  Personally, I wouldn't go over 60psi hookless.  My 32mm tires are rated for ~90PSI, but that isn't gonna work hookless, and I don't need that hard a tire either.
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smoothmoose Senior Member 210 posts
smoothmoose
chas wrote:
I've run "hook only" tires on hookless rims.  In my experience:
- its harder to mount some of them on hookless rims 
- Max PSI is the less of the max of the tire and the rim.  Personally, I wouldn't go over 60psi hookless.  My 32mm tires are rated for ~90PSI, but that isn't gonna work hookless, and I don't need that hard a tire either.


All true - based my experience so far.  However maybe due to my rims, the "Max" pressure is at most 40psi, because if I pump to 45psi it breaks the tubeless seal and air starts to rapidly escape from the bead/rim interface.  Probably a no go - as at times I would want to run 40psi.

I pumped up to 80psi with tube - just to get it seated in the first place.
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chas Senior Member 1,305 posts
chas
Unless I have a super tight fit, I tend to use "skinny strippers" (latex rim strip) that helps with that.  It makes it easier to seat the bead, and makes it harder to burp or blow off air - after a few days it basically seals the air chamber to the tire (like a tubular) so it can't leak (unless something catestrophic happens)
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smoothmoose Senior Member 210 posts
smoothmoose
chas wrote:
Unless I have a super tight fit, I tend to use "skinny strippers" (latex rim strip) that helps with that.  It makes it easier to seat the bead, and makes it harder to burp or blow off air - after a few days it basically seals the air chamber to the tire (like a tubular) so it can't leak (unless something catestrophic happens)


Never heard then, but will give them a try! Vittoria told me it will take weeks to confirm with the factory if I can ride the tires on hookless rim or not. Not sure I want wait that long.
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