XLAB Torpedo Versa 500Designed with Triathletes in mind, this cutting edge hydration system from XLAB is not to be missed. The only accessory in the bike market Nominated for the Interbike Innovation Award! Switch between Refill or Standard Bottle setup via the seamless telescoping computer mount. Turn it upside down or shake it around new leak free bottle design keeps liquids inside! No ugly cable ties, rubberbands or electrical tape needed to secure system. The 2 Bracket