Suppressivefire said:
Any thoughts on a tire that will give a better ride on a hard tail bike on the street but still good off road, I do a lot of mixed riding street/off road.
Edit: also good at high speeds? Not sure if you can get all these traits out of one tire.
Depends on what you mean by "off road". A lot of my customers think riding on a granite surfaced bike path is off-roading and thus requires aggressive knobbies, when in reality slicks or near-slicks do just fine for that.
If what you mean by off road is loose rock, mud, sand, soft moist dirt, or other such challenging surfaces, then a good dual-purpose tire for you would be something like the Kenda Small Block 8, or WTB Nanoraptor. If what you mean by off road is a bike path or gravel driveway, then just use a street tire like the CST Cyclops.
The main factors for good ride quality are the size of the tire and the inflation pressure. For best results, use the fattest tire that fits with a little room to spare, and keep the inflation pressure modest. The right pressure depends on the tire width, rim width, gross weight, and anticipated surfaces. For a tire in the 2.3-2.5" range, start with 35psi in front and 40 in the rear and adjust from there according to feel and performance.
All bicycle tires are capable of whatever bicycle-like speeds you can throw at them. Since unpowered bicycles can reach 60mph or more on downhills, think of anything under 60mph as OK. If you use extraneous junk that raises rolling resistance, like tire liners, thick tubes, etc, then it would be a good idea to check tire temperatures periodically during prolonged high speed runs. If your tire does not get uncomfortably warm to keep your hand on, then you are in the clear.
Elevated speed and power make proper inflation pressures more important, so get an idea of what is right for your rig (not just the maximum rating on the tire sidewall), and check tire pressure frequently.
Chalo