The WTB Prowler SL 29er makes easy work of hard-packed ground and loose, dry terrain. The Prowler's lateral knob design provides aggressive grip on gnarly climbs. This WTB tire features a smooth center ridge with a herringbone pattern of lugs for controlled turns and traction.
These tires came stock on my Fantom Ti 29er - I assumed they would be crap since they came as an OE tire, but they had excellent grip for conditions in our area (hard pack to loose on top of hard pack). Worked well in sand also. Got 765 miles out of them, with about 50/50 street to trail riding. Front tire still had life in it, but the back was just about done. Was going to get another set to replace them but was swayed by the lighter Rocket Rons, which don't grip quite as well, but are quite a bit lighter.