Zipp Hub Bearings Stock Item:Zipp Wheel Bearing Kit Rear 30 / 60 6903 / 61903 - 2 Pack Visible Light Transmission (VLT) describes

Visible Light Transmission (VLT) describes the percentage of light in the environment that reaches your eye after passing through the lens

and pull out

saving you and your frame from destruction

wearable and USB rechargable

Zipp Hub Bearings Stock Item:Zipp Wheel Bearing Kit Rear 30 / 60 6903 / 61903 - 2 Pack Visible Light Transmission (VLT) describesZIPP HUB BEARINGS Please see a list below of Zipp Hub bearings. If you are unsure which hub you have and therefore which bearings are required, please see the helpful resources below first to ensure you are ordering the correct bearings. HUZ11900029000 Zipp Bearing 61803 2RS Pair Fits 88 188 MODEL HUBS HUZ11900030000 Ceramic version of above HUZ11918021001 Fits Zipp 30 60 Rear Bearings HUZ21900002000 Bearing 61802 Pair Fits 82 and 182 hubs