Rize is the most thoroughly disreputable company I have ever encountered. I purchased the Rize Rx for $3600. It worked well until it was just out of the warranty
period. Then severe noise began coming from the Ultra 1000 watt Bafang mid drive motor. Being a machinist and fairly mechanically inclined, I took it apart to identify
the problem. Some videos were helpful in this respect. Rize was of no help because they do not stock parts for these motors. After getting the gears needed from China,
the motor itself would run, but the controller would not communicate with the bike. Since the reduction gears, grease , and controller are all housed in the same
cavity of the motor case, the electronics became contaminated. This is a serious flaw in this model of Bafang motor which afflicts the Rize RX and all other makes
with the same motor. Rize claimed this was a lack of maintenance on my part although there was no mention that these motors needed to be completely disassembled
to grease them in their sales presentation or the information that came with the bike. Rize offered to replace and install a new controller for $450 but without any
warranty. (Not that a warranty from them would have any value). Thus the Rize RX became scrap. When I tried to negotiate a reasonable deal on a hub drive model to compensate for the loss, they rejected anything less than full price.
period. Then severe noise began coming from the Ultra 1000 watt Bafang mid drive motor. Being a machinist and fairly mechanically inclined, I took it apart to identify
the problem. Some videos were helpful in this respect. Rize was of no help because they do not stock parts for these motors. After getting the gears needed from China,
the motor itself would run, but the controller would not communicate with the bike. Since the reduction gears, grease , and controller are all housed in the same
cavity of the motor case, the electronics became contaminated. This is a serious flaw in this model of Bafang motor which afflicts the Rize RX and all other makes
with the same motor. Rize claimed this was a lack of maintenance on my part although there was no mention that these motors needed to be completely disassembled
to grease them in their sales presentation or the information that came with the bike. Rize offered to replace and install a new controller for $450 but without any
warranty. (Not that a warranty from them would have any value). Thus the Rize RX became scrap. When I tried to negotiate a reasonable deal on a hub drive model to compensate for the loss, they rejected anything less than full price.