LI-ghtcycle wrote:Please put me down for a front geared hub kit, PM sent.
These do come with SLA batteries correct?
Sorry no SLA. I can get SLA batteries here pretty cheap, but I don't think it is worth your while shipping them as they are so heavy.
I don't want to upset anybody, so better I don't say any more on the subject of which other companies in the US use this supplier.
I've got a few pics of the motors as requested and I did a quick road test to see how it performs. As I mentioned the design of the DD rear motor means there is very little dishing required on the wheel build, but it is very well centred, with zero runout and nicely tensioned spokes. The geared motor does require some dishing, but again it's nicely done.
The road test showed the DD kit to be a bit slower than I was expecting, but I don't know why I was surprised, the no load rpm tallies with the on road speed. With a 36V battery which actually had 36V under load, a speed of about 28kph or about 17mph was seen. With 16S LiFePO4, about 51V under load, I was seeing about 39kph or about 24mph. The DD had very good torque pulling away from a standstill. I've already spoken with my supplier to see what other rpm options are available and will report back with some more info shortly. Please let me know if the available motor speeds are acceptable or if something a bit different is required. Will do my best to give a good price on a bare motor if that's what you are looking for as this DD might be better suited to a higher voltage, but need to check with my supplier as to the price difference compared to the full kit.
The geared motors are European legal spec so they will do about 25kph, 15mph at 36V and about 20mph at 48V. Both the geared and DD kits put a very moderate load on the battery pack.