ZIPP 188 V7 Conversion Kit for hubs with 10s, wishing to convert to 11s.

FEATURES
Only to be used to convert Zipp's 188 V7 10-speed rear hubs to 11-speed.
Not to be used on 188 V6 or earlier rear hubs.

INCLUDES
Axle
Dust Covers
Shimano/SRAM 11s Freehub Body
End Caps

HOW TO IDENTIFY YOUR HUB
.

The general rule is that if your hub is a Black 188, it's a V7.