915 Generation 4PCS 11T Ultralight Aluminum Bike Wheel,Black

Anodized machining bicycle riding wheels with fully sealed bearings for center bolt derailleur.
Suitable for all 11T mountain bikes.
Stainless steel bearings have superior durability.
: Upgraded Screw hole: 5mm / 0.2inch Product size: 5x5x0.5cm
Product weight: 11G/pc of application: Bicycle aluminum alloy riding wheel rear derailleur pulley 11T 8/9 speed
Colour: black
Material: aluminum alloy Package Contents:
4 * Bicycle pulley wheel Only the above package content, other are not included.
Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed error is +/- 1-3cm.