The Martello G2. 0 4C Trail 29in TLR Tire Set puts two aggressive mountain bike tires on a 29er for trail and all-mountain riding. Moto-block knobs and progressive siping find grip from fast hardpack straightaways to loose, off-camber corners. A Trail TNT casing adds resistance to sidewall tears and pinch flats for long days on rugged terrain. What Our Gearhead(R) Experts Are Saying:"Late in a long, wet descent I could still lean into root-covered corners without braking early, because the Graphene 2. 0 tread stays tacky when it is wet."