The Off-Road bundle has the same system components as the F2 but includes the the Micro Retractor system which is the complete solution to hands free drinking for both MTB as well as road cycling.
The micro retractor is a sprung return cable for the drinking tube which pulls the tube back to its resting position away from cables and out of vision when not in use.
The Speedfil F2 works with any Specialized thread compatible water bottle in both 500ml and 750ml sizes. The F2 has a dual splash resistant design that allows the rider to refill the system on the fly. The F2 works with any standard cage mounted on the down tube. This also allows for simple mounting and cleaning.
The Speedfil Micro-Retractor allows the rider to pull the drink tube up to 24 inches from the handlebars, drink, and then release. With up to 6 oz. of force, this retractor snaps back inside the keeper with no hesitation. The Speedfil Micro-Retractor utilizes a Spectra/Nylon line and has a 40 lb. break strength to withstand even the most aggressive off-road riding. This is NOT just an “off-the-shelf” key retractor. Our partners have spent years designing this retractor to not only survive saltwater and military applications, but it is also specifically designed to clean itself by flushing out sand, mud and other debris.