Hydrapak Polar Breakaway Surge Water Bottle - 25oz Gray 2-Pack MFPN=FD792031PN The axle system has been

The axle system has been revamped for even greater bearing life while achieving an even lower axle-cleat height than the previous design and a wider body improves stability

Fits phone and cases from 5

Its rigid housing adjusts for chain lengths

The two largest AL cogs 44 and 52t are made from 7075 aluminum for high strength and low weight

Misc Standard 67

Hydrapak Polar Breakaway Surge Water Bottle - 25oz Gray 2-Pack MFPN=FD792031PN The axle system has beenHydrapak Polar Breakaway Surge Water Bottle 25oz Gray 2 Pack. The Breakaway Surges beauty is its simplicity. The lightweight performance design starts with our Surge Cap self sealing it delivers high flow hydration on the move. The bottles are slim and ergonomic to fit comfortably and securely in your hand and cage and the ultrathin side walls make squeezing easy so focus stays on the ride not the bottle. Max flow surge valve technology maximizes flow