The Agarro G2. 0 Trail 4C 27. 5in TLR Tire Set outfits a trail bike with two matching mountain bike tires that split the difference between cross-country efficiency and enduro grip. The trail tread bites harder than an XC tire and carries less bulk than an enduro tire, so climbs stay efficient and loose descents still hook up. A 4C Graphene compound blends four rubbers across the tread, and the folding bead suits tubeless-ready rims. What Our Gearhead(R) Experts Are Saying:"The lugs sit far enough apart that mud falls out of the tread before it packs in, so the tire bites on the next climb the same way it did at the trailhead. On sticky spring trails, that kept me pedaling through the whole climb."