5403/5404 US/CANADA deadline! order is made!!!

[auraslip]

I'm all for castration....... of hub motors. It's going to happen eventually anyhow. It's a problematic way of mounting a high powered motor to a vehicle.

[Evoforce]

There's a new thread started in the ebike general discussion called 5404/5403 the good the bad the ugly.

[neptronix]

I'm all for castration....... of hub motors. It's going to happen eventually anyhow. It's a problematic way of mounting a high powered motor to a vehicle.

http://www.electricmotorsport.com/store/ems_ev_parts_motors_pmac-ss.php

All you need is a 4:1 - 5:1 reduction to gear this to run at 40mph on a bicycle at 12S voltages. That can be done in a single stage with just differing size sprockets.

6 hp continuous ( 4.5kW ) and 19 HP peak ( 14.25kW ), at 22lbs, it's got a power level that is close to what the cromotor can put out. It is most likely more powerful than the 54xx. If it's underrated, then it's even more insane than initially thought.

90% ( probably peak ) efficiency would best the cromotor and Crystalyte 54xx.

There was intense interest in these motors a few years ago. Not sure why it dropped off.

[oatnet]

I don't see anything in max's postings that about his axle stripping. Could someone please reference this?

There's a new thread started in the ebike general discussion called 5404/5403 the good the bad the ugly.

You may have missed this, but this discussion thread for the motors has been around since April 1st, don't miss out on that content (including discussion on the axle stripping):
viewtopic.php?f=30&t=38300

[Evoforce]

Thanks for pointing that out oatnet. The purpose of the new thread (although related and important) is for everone to give their review, likes, dislikes, fixes and workarounds, post questions, point out suppliers and supplies to go with these motors and show and tell a little about what they are doing with these motors. Also here in this sales/buy thread and other relating to the group buy, will expire, loosing all the info, where the ebike general discussion area will live on in infamy! Thanks again for pointing out Doc's review thread. The new thread that's been started is titled 5404/5403 The good The bad The ugly. Hope to see everyone there!

[The Mighty Volt]

Did they ever make a 5405?

[Doctorbass]

Did they ever make a 5405?

Yes: http://crystalyte.com/xlyteupgrade.htm

But you need to have large order i think..

Doc