The Comfort Zone grip features an integrated locking mechanism that aids installation and eliminates twisting in a comfortable shape.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.