Stay hydrated with the patented Speedfil F2 system. The F2 works with any Specialized thread compatible water bottle in both 21 fl oz. (621 ml) and 24 fl oz. (710 ml) sizes. The F2 model enjoys many of the same benefits as our Speedfil F1 system but the F2 works with any standard cage mounted on the down tube. The dual splash resistant design allows the rider to refill the system on the fly. Only prime the Speedfil system once and you have access to your hydration immediately. The bite valve keeps fluid on demand without sucking up air after each drink. The F2 can be used by triathletes, mountain bikers, as well as recreational riders. For a complete hands-free solution Speedfil recommends combining the F2 system with our exclusive Speedfil Micro-Retractor (sold separately or included in the Off-Road Bundle). This retractor allows the rider to pull the drink tube up to 24 in. (61 cm) from the handlebars, drink, and then release. The retractor snaps back inside the keeper.

Great for Mountain, Road, Gravel and Triathlon. Easy to mount and easy to clean. Dual splash resistant opening allows for fast, on the fly refills with minimal splash. he bite valve and tubing keep fluid on demand without sucking up air for each drink. Works with any standard cage mounted on the down tube. Also works with any Specialized thread compatible bottle.

Recommended Uses For Product: Watercraft. Age Range (Description): Any Age Group. Capacity: 1.3 Pounds. Color: Black. Brand: Speedfil. Date First Available: January 18, 2012. Best Sellers Rank: #262,038 in Sports & Outdoors. Customer Reviews: 4.4 out of 5 stars 74 ratings 4.4 out of 5 stars. : B006Z0RLWY. Model Year: ?2015. Part Number: ?SF F200-03. Manufacturer: ?Speedfil. Country of Origin: ?China. Brand Name: ?Speedfil. Item Weight: ?0.8 Pounds. Item Dimensions LxWxH: ?14.57 x 7.87 x 2.76 inches. Package Weight: ?0.37 Kilograms. Item Package Dimensions L x W x H: ?14.3 x 7 x 2.6 inches. Unit Count: ?1 Count. Sport Type: ?Triathlon. Style: ?F2. Reusability: ?Reusable. Number of Items: ?1. Recommended Uses For Product: ?Watercraft. Age Range (Description): ?Any Age Group. Capacity: ?1.3 Pounds. Color: ?Black. Brand: ?Speedfil.