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Aaron Crabb

Aaron Crabb

Aaron Crabb

Aaron Crabbwrote a review of on June 21, 2017

4 5

Familiarity: I've used it once or twice and have initial impressions

I wound up with both the 28mm and the 23mm versions of this (I think the 25 wasn't available when I was ordering).
The 28 setup tubeless on a modern rim very well. The 23 I have a tube in for now, but I had no fitting problems or any such jazz.
These are clearly super nice tires from just a stroll around the block.

But what I wanna talk about is the size of these tyres. These things are rather huge. The 28 barely fits in my frame and measures 31mm on my calipers. Literally, its the same size as some Mavic 30's that I have mounted on slightly narrower rims. How does the 23 look? Well...I kid you not, it measures closer to 25mm. Compared to the old faithful Conti GP4000s 25, the ProOne 23 is slightly less voluminous but still sits just as wide.

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Aaron Crabb

Aaron Crabbwrote a review of on June 17, 2017

4 5

Familiarity: I've put it through the wringer

I got these in 29er primarily for the rear tire of my hooligan hardtail (Niner ROS). I've now added it to my front as well. The setup is easier than straight tubeless just because the inner chamber almost eliminates bead seating issues but is still time consuming and a bit finicky (wide rims are required).
That said, mine's inner chamber seem to leak intermittently (perhaps the fancy two-way valve is to blame?). Also, the valve can get stuck in the 'closed' inner chamber position or clog with sealant. Both can be real problems on the trail.
If the main purpose of these is to protect the rim and allow low tire pressure - total win.

I recommend these for aggressive trail and park riding but not for long excursions where they aren't worth the extra weight and complexity.

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Aaron Crabb

Aaron Crabbwrote a review of on June 30, 2013

5 5

If you are looking to maximize versatility, then look into these. However, the super-thin lobster cover doesn't do much more than block wind (which it does very well) and doesn't add any insulation.
But having the versatility of being able to get all your finders back when you come around to the warm side of the mountain is great :-)

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Aaron Crabb

Aaron Crabbwrote a review of on June 30, 2013

5 5

Familiarity: I've used it several times

These are the super-lobster. They are insanely worm for how low-bulk they are.
I picked them up from a store in CA thinking they were fall gloves just because they didn't look that burly. I was mistaken and have since used them in the coldest rider i've ever done (to be fair that was only ~28F with little wind).

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Aaron Crabb

Aaron Crabbwrote a review of on June 26, 2013

4 5

Familiarity: I've used it once or twice and have initial impressions

I just got these installed...they are only the second cross tubulars I've owned.
They seem to corner well and all that.

What I really have to say is that the latex inner tube mentioned in the post...It definitely loses air! Brand new, it leaks as bad as road tubulars that I've put literally a thousand miles on.

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Aaron Crabb

Aaron Crabbwrote a review of on June 26, 2013

5 5

Familiarity: I've used it several times

When these are setup so that just the center chevron shaped tread is in contact with the ground this thing rocks pretty hard. I was quite impressed how well it handled. It felt like a slick (smooth and fast) in dirt until I turned or found a patch of grass....then it suddenly bit down like a knobby.
My only complaint is on the pavement it let me down a little.
Haven't put enough miles on them to speak to their durability, but I haven't torn any of the little bits of rubber off yet.

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