The 45NRTH Dillinger 4 Tire in 27.5 x 4.0 is a fast and reliable studded fat bike tire that offers exceptional traction on snowy and icy terrains. Its tightly spaced center tread ensures quick rolling, while the taller braced side lugs provide improved cornering performance. Additionally, the carefully positioned large concave carbide aluminum studs offer confident and controlled riding on off-camber singletrack. Please note that replacement studs and a stud insertion tool are sold separately for your convenience.