drewdiller
100 W
- Joined
- Nov 5, 2009
- Messages
- 172
lynchy said:By the way, what are BMS and Ecity charging for these motors?
$70, plus USPS shipping came out to ~$130.
lynchy said:By the way, what are BMS and Ecity charging for these motors?
lynchy said:And the same for the 128 motors?
I've been waiting patiently for them to ship out my order but today I received an email from them.GrayKard said:I purchased one Q-F-128SX front motor which is the 350/500 watt 36/48 volt version, and one Q-R-128SX rear motor same wattage and voltage. I made sure to include detailed comments so I get the right fit but will have to cross my fingers until they arrive.
lynchy said:Yes the joys of doing cross culture trade. My offer's still there if anyone's interested? I will detail exactly what you will be getting because I'll make sure I've got an example in front of me first. Be cheaper too Either way, no problems answering any questions you've got
GrayKard said:Another email from ecitypower: i have to tell u that now our rear motor of Q-R-128SX can not load the 6 speed freewheel, just can be 2-5 speed. I assume they mean and have any hope of fitting in 135mm dropouts.
Drunkskunk said:lynchy said:Yes the joys of doing cross culture trade. My offer's still there if anyone's interested? I will detail exactly what you will be getting because I'll make sure I've got an example in front of me first. Be cheaper too Either way, no problems answering any questions you've got
I may be, but my project is going to have to wait untill after the first of the year.
I'm interested in details and figures in case I'm not happy with how my build turns out. In that case I will put the "cute" setup on another frame I have laying around and get a couple motors from you.lynchy said:I've also been testing a really nice 36V 500W (very conservative rating IMO) hub motor. It's not cute but it certainly does the biz, especially at 48V. I've only used the motor in front wheel up to now but gonna be getting some front with disk and rear with disk and apparently 6/7 freewheel, which fits in a normal sized dropout. Unfortunately it's a bit bigger than these at about 4kgs, but I think 2 of these cuties would struggle to keep up with 1 of these bad boys running 48V regardless of overvoltage. They come in at a pretty good price too and it's the quietest geared hub motor I've used. Can give some more details and some figures if anyone wants to know more.
mwkeefer said:Gary,
You beat me too it.
Yep if you have 500w geared brushless motors - I know I'd be interested in hearing more details on them.
I'm wondering if they are steel or plastic geared? if they are steel we might be testing the same thing from the same manufacturer, if that's the case... I'd love to compare notes and measurements to see what the variance is across the pond and order time frames.
That's the one problem with evaluation and samples... we get (usually) the very best they can produce as samples but actual quality is lower in production - if we (users) or they (vendors) would start having a bit more communication durring this sampling stage then I think 1/2 of the crappy stuff that makes it into our markets wouldn't. If we all compare notes and measurements, we could identify the tolerances from their sample stock instead of having to sink 10-20K USD into a bulk order only to find out that the production tolerance made 10% of the received inventory unusable or worse that the whole batch of end product has to be torn down and rebuilt or a fix has to be integrated (Morgan, Jason, Justin and all the other vendors should understand this).
The competing factor is capitolism - everyone wants to have the "technical" edge and so I doubt (though I don't know for sure) that there is much technical sharing amongst the various vendors / dealers and I do understand the need for a market edge. I am criticized by some for "giving" away too much and thereby taking value out of retail products however, I see it a bit differently than most potential vendors. A good example is proper torque washers for the US market - I've been giving the specs away and encouraging everyone (vendors and users alike) to provide these instead of the chinese versions which won't fit US dropouts. Could I have held these, produced them and then used them for a marketing edge? Sure. I have 3 new torque arm designs in the machine shop right now... They will solve a host of issues for front and rear vertical dropouts and yep I could sell them and / or use them for a market edge but... These are safety / quality issues and fixes which should be available to all because if eBikes get a reputation for being dangerous -- well all the market edge in the world doesn't help if the average consumer is afraid of the product?
So I see quality and safety in the same boat - I think vendors should be competing more upon final kit or build quality, feature set, customer service and finally (YES I MEAN FINALLY) price point.
So if you have 500w geared hubs, I'd love to hear about them and their quality...
The whole bit about the BMS people not knowing their product is true.... I had to pull the cover off my front hub, take it to the machinst and he is putting a wider collar on it for me and then drilling out the 6 bolt brake mounts. This was for a motor which was supposed to support the disc 6 bolt (how that's possible with no holes, got me).
-Mike
adrian_sm said:lynchy,
Time to start your own thread. This is way off topic.
Regards,
Adrian
Drunkskunk said:Great pics. The helical cut gears are of interest. usualy they are stronger and quieter. Its odd that they would be on the lighter weight motor. I wounder if there is any noise diffrence between the two?