XLAB Aero TT Water Bottle and Cage System: Stealth Black Cage and Bottle ModelNumber=J1972 Featuring some of the lowest

Featuring some of the lowest stack height bearing cover options available with premium stainless steel Hellbender bearing and 6061 T-6 Aluminum cups and covers the Hellbender 70 Slam is a premium headset created for riders seeking to lower their handlebars as low as possible without compromising bearing longevity and proper preload

E-sync hubs feature Enduro bearings with double-row freehub bearing and cromoly axle offer 47% increase in max torque capacity over Neo hubs

Large 113mm x 105mm x 18mm platform

The wheel must be built with the supplied PHR washers and Pro Head nipples

XLAB Aero TT Water Bottle and Cage System: Stealth Black Cage and Bottle ModelNumber=J1972 Featuring some of the lowestXLAB Aero TT Water Bottle and Cage System: Stealth Black Cage and Bottle. The Aero TT System offers 50% less drag than round bottles saving up to one minute in an Ironman and up to 20 seconds off of a 40km TT Tri. 20oz BPA free water bottle with easy grip texture and groove Bottle is held securely to the XLAB Hi Grip Deep Pocket cage Total System Weight: 119g TECH SPECS Color Black Bottle Type Standard Access Style Top Mount Type Bolt On Material