The Camso SKS R1 is now the Camso SKS 511. The Camso SKS 511 Traction Master is a crossply (bias) pneumatic tyre with a unique tread pattern for outstanding traction and flotation. The extra-deep tread gives the Camso SKS 511 increased durability and extended service life. The Camso SKS 511 has excellent all-round handling and protection.