The Shimano Alfine DH-UR705-3D Dynamo hub employs a new internal unit construction that is lighter and also reduces dynamo drag while producing 3 watts. It is designed for 26 to 28-inch Center Lock wheels and uses a 12 x 100mm E-THRU axle design.

– New internal unit construction is 28g lighter than DH-T8000-3D
– More efficient wheel rotation reduces dynamo drag by up to 44% from DH-T8000
– Proper positioning with 12mm E-THRU
– Angular contact bearings
– Compact & lightweight
– Low rotational resistance
– Effortless setting of disc rotor
– Durable sealing performance