The Black Ops DW1.1 29" Wheelset are a great value for anyone looking for a quality wheelset that utilizes 3/8" axles and a freewheel compatible hub. The DW1.1 wheelsets use the Black Ops MX1100 hubs, which feature aircraft grade alloy hub shells with machined cutouts, sealed precision bearings, and "flip flop" threaded shoulders to accommodate thread on freewheels. Laced to SE double wall alloys rims to insure they hold up for a long time.