Shimano EW-JC302 Di2 Junction Box - 2 Ports Use With EW-SD300 CheckoutSpec= 16 - 24mm }Lizard Skins Monitor Ops Gloves

}Lizard Skins Monitor Ops Gloves - Jet Black Full Finger Medium

Model CT1139SMN Hub 9-Spline 6-Bolt Teeth 39t

Three unique light settings: zZz aHA

For 49mm OD head tube

Shimano EW-JC302 Di2 Junction Box - 2 Ports Use With EW-SD300 CheckoutSpec= 16 - 24mm }Lizard Skins Monitor Ops GlovesShimano Di2 Frame Junction BoxFrame Junction Box connects via SD50 E tube wires to four different points: front derailleur rear derailleur cockpit junction box and battery mount All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions Use Di2 system checker to update component firmware from http: e tubeproject. shimano. com