The redesigned WeirWolf is a different animal entirely. WTB added an extra row of transitional tread between the crown and side knobs that gives the new WeirWolf a positive feel and consistent traction at any lean angle, from moderate to extreme. Mount the WeirWolf for big mountain cross county rides, Super D races of DH adventures and find out why Mark Weir is always sporting that goofy grin.WTB was founded in Marin County, California in 1982, fueled by the need to create durable and reliable mountain bike-specific equipment. Today WTB is a global enterprise; our innovative components are used for trail riding, transportation, recreation and elite racing across the globe. WTB was founded in Marin County, California in 1982, fueled by the need to create durable and reliable mountain bike-specific equipment. Today WTB is a global enterprise; our innovative components are used for trail riding, transportation, recreation and elite racing across the globe.