Bearings and seals
Clean your bearings and seals reguarly and put new grease in it.
When you check the bearings and when they are feeling worn out replace them. A broken bearing can destroy the complete hub and a crash can follow.
Sprocket and disc bolts
Check and tighten (if necessary) sprocket and brake bolts regularly. Use only good quality bolts like OEM and tighten them according to OEM torque specs. If you ride with loose sprocket or brake disc bolts your hub will get damaged or destroyed.
Haan Wheels cannot be held responsible for any damage or injury caused by incorrect product mounting, disregarding specifications and these maintenance instructions or product mounting by an unqualified third party.
Haan hubs and spokes are from a top class quality and we are sure you will never break them if you follow up all instructions. We are using the best quality rim, but after hitting a rock or crash you can always bend or break it. Haan Wheels cannot be held responsible for a breakage of the rim. Loose sprocket or brake disc bolts will destroy the hub, there is no guarantee for this so prevent this and follow the instructions.
Haan Wheels can not be held responsible for any injury or damage while riding with our products.