Then don't read this:

Does anybody know what the widest 700cc tire is?? And if so, who manufactures/sells it??

depends. road, touring, cyclocross or 29er???

WTB Weirwolf is 2.55", pretty dang wide...

I should have been more specific in my needs. I'm looking at building up a single speed commuter on 700cc wheels. This will be my "bomb-proof", everyday ride. I'm mostly on pavement, but would like to be able to handle mud/dirt occasionally. Hopping curbs and bad pavement are a daily occurance on my route, so I want a nice big tire for a softer ride. I'm aware that I'll have some extra rolling resistance to contend with and that doesn't bother me.

The bike I'm looking at is the Fantomcross Uno. It can take a 29 inch wheel, so maybe that it the route I should take?

29" and 700c are two names for the same size wheels.

If you're putting them on a cross bike the limiting factor is probably not going to be available tire sizes, but frame clearance. Take a look at how wide the spaces where the tires will be are on your frame (between the chain stays by the bottom bracket, and between the seat stays near the brake bridge). Measure the space, subtract some 5-10mm, and that's around the biggest size tire you'll be able to fit.

Chris

Then what you should really be asking (of bikesdirect) is "What is the widest tire that this bike can run".

The widest tire available will not fit that bike.

Thanks for the input guys. I think I've found what I'm looking for:

https://www.speedgoat.com/product.asp...t=47&brand=159

From Bikes Direct's Fantom Cross Uno page:

Features "WTF: Wide Tires Fit" clearance for up to 42c / 29x1.7 tires

Yup, got it. I'm going to go with a 40mm tire. Thanks I was hoping to be able to go a bit bigger though.

Just remember that if you want fenders, you may have to buy a smaller tire.

I commute with 622mm (700C) x 47mm tires and very much like the smooth, comfortable ride. I use Schwalbe Marathons (Not Plus) and they cost about $30 each but are well worth it due to reliability (No Roadside Flats in 11 years) and long wear. I was not happy with Michelin brand city tires in the same size I used while in Europe.

I recommend spending the extra bucks and getting the Schwalbe Marathons.

Why not go to a bike with 26" tires then? They have a much better selection of "fatter" street tires.

11 years without a flat

I've tried the Schwalbe Marathon and then the Marathon Plus. In both cases I was getting flats just as frequently as with any other tyre, which was about one a week (I was commuting 300 miles a week). The culprit was about 50% glass and 50% bits of steel belting from shredded truck tyres.... I got real good at fixing flats.

I started using Mr. Tuffy liners a few years ago out of sheer frustration and since have only had one flat tyre every 6 - 9 months. In every instance they've been caused by steel belting.

I encounter a bit of everything during my riding, much like what the OP describes. My favorite tyre is the 700x28 Continental UltraGatorskin. Fatter tyres don't seen to be any more comfortable, but they make the bike more squirrely during fast cornering.

I have had about 5 or 6 slow leaks which flatted while at home or work which I could repair at my leisure, but haven't been delayed or had to stop on the road fix a flat enroute in over 11½ years, (approximately 5000 miles/year.) This was mileage in Germany and Iowa, other more littered places may not have produced such results.

The Michelin City Reflective Tire you like comes in a 47mm width. That's 1.85"

https://www.speedgoat.com/product.asp...t=47&brand=159

They look good to me too.