1. Recheck and Readjust the Spoke Tension with spoke wrench if possiblely before installation for Double Security.
2. These Wheels Not for Motorized Bicycle.
3. It's inevitable that there will be SCRATCHES or PAINT PEELING during transportation, buy carefully if you are concerned.
4. Before installing, please clean the metal scrap in hub firstly;
5. Put engine oil or lubricating oil on the axle and the six screw holes to disc brake to prevent the screw from damaging!