nine continents vs new crystalite comparisons

[SniperGaulois]

Apparently the 9C and the HS35, it's closest equivalent, are pretty much equal in performance according to the simulator app.

the efficiency is exactly the same, the 9C is 2 kilos lighter and has 8 to 18 % less torque than the HS depending on how fast you are going...

it certainly doesnt look like the 9C is beaten by the HS, and the HT at best will give you 25 percent more power up a hill than the 9C... what about the differences in drag when you pedal the bike, the 9c is better than a 406, but what about the HS ones, are they stiff to pedal, are HS mostly better for 50amps type bikes? are there any clear advantages to one or the other?

 

[chvidgov.bc.ca]

I think the resistance while pedalling is very dependent on the controller. My crystalytes may have a lot, with the ebikes.ca Crystalyte controllers, or very little, when using the BMSBattery 12 mosfet controllers in sensorless mode at least. I don't think you can generalize to the motor, only to the motor with controller x level running sensored or sensorless. I have a 9c with the same BMSbattery controller, and it is very light "cogging"/resistance.

 

[MadRhino]

I believe the H series Clyte beat the 9C by far, for acceleration, but not for reliability. I run mines with 24s Lipo, they have seen bursts of power close to 10,000w, but needed serious mod from the start.

 

[Lyen]

Being able to test the 9C 2807, 2810, HT3525, and HS3540, here is my observation:

HS3540 vs 9C 2807:
Nominal usage at 48V 30A:
Draw

"Overclocked" usage at 100V 25A:
HS3540 wins with more mass on the housing to dissipate the heat faster but not by much

Bearing Resistance:
Draw

Range advantage:
Draw

Weight advantage:
9C 2807 wins

Heat dissipation advantage:
HS3540 wins
_________________________________________
HT3525 vs 9C 2810:
Nominal usage at 48V 30A:
Draw

"Overclocked" usage at 100V 25A:
HT3525 wins with more mass on the housing to dissipate the heat faster but not by much

Bearing Resistance:
Draw

Range advantage:
Draw

Weight advantage:
9C 2810 wins


The other thing taken into consideration would be quality consistency. But I will let the jurors make their decision.

In my opinion, I like the 9C because every single motor is serialized. On the other hand, Crystalyte generally have a reason for their motors design and more adaptable to larger group(s) of power ebikers.

Just my 2 cents. :wink:

Lyen

 

[qtipslea]

In my opinion, I like the 9C because every single motor is serialized. On the other hand, Crystalyte generally have a reason for their motors design and more adaptable to larger group(s) of power ebikers.

Just my 2 cents. :wink:

Lyen

Serialized as in personalized? Like every motor is unique for 9C?

 

[amberwolf]

each one has a serial number engraved on the covers.

 

[neptronix]

Thanks for the data, Lyen.

*feels better about owning a 9C/MXUS style motor, lol*

 

[SamTexas]

each one has a serial number engraved on the covers.

How to decode that serial number? Here's the number on one of my 9c

JZ36V-500W090430043

36V and 500W are obvious. What about the rest?
JZ ??? model number? winding?
090430 This looks like the manufactured date: April 30, 2009
043 ??? winding? or may be the 43rd hub manufactured on that day?

 

[dogman dan]

My guess is the 90,430,043 th motor made of the JZ 36v 500w model. That's a few!

I don't scoff the weight of the 9c one bit. To me it's the main difference for a dirt trail riding bike. Wish I could get the same performance even lighter, but copper is going to weigh what it weighs.

On the other side of the coin, overclocking a motor very much, I think the clyte H models should have kept more mass, for use on the street.

And for the millionth time,,,,,Sheesh! If you redesign the motor, for pitys sake redesign the stupid small bearing and tiny space to put the wires through, and include an integrated torque arm so the axle can be 10mm round again! What worked for 200w starts to fail miserably at 1500w.

 

[Philistine]

Here's my subjective 2 pence on the subject:

I currently own an 8x8 9C, a 2805 9c, my mate owns a 9x7 9C, and I own a HS3540, and I have punished a previous 8x8 9C into a very early grave, the corpse is rotting in the corner next to the casting couch in my garage.

My HS3540 has caused me a lot of grief, what with side cover screws being so thickly epoxied in place that there is no screw face at all, and the axle has shredded to pieces two different torque arms, and I am now only happy with a combo of Kiwi's awesome Greyborg torque arm, coupled with double ebikes ca torque arms on the other side. I hate the axle on the HS to bits, it is as if it is made out of thin frozen diamond it is that slippery and sharp and torque arm destroying.

But having said all my gripes above with the HS, I would choose my HS3540 over any of my 9Cs in a heartbeat. For me that is three things, 1) it just feels and rides so much better than any of my 9Cs and is much quieter, 2) The watts I have thrown at my HS bone stock (no cooling holes, no upgraded phase wires, no mods at all), would have smoked my 9Cs long ago, in fact they did, running about 20% less watts when I sent my 8x8 9C blubbering sobbing and begging for its mamma into the grave. The heat dissapation is just so much better on my HS than on my 9Cs. I used to baby my 9Cs, but I treat my HS no different to my X5, and it has held up bone stock (having said that she gives off a terribly unpleasant smell from the places I take her to, and 3) the wheel build that came stock with my HS from Crystallite is awesome. The rim is a chunky welded rim, with 12 guage spokes. Whilst I have never broken a spoke on my 9Cs personally, my mate breaks his fortnightly, and mine are very worked indeed, and the wheel build on my 9cs is cheap rubbish. I realise you can build a motor into any wheel as you please, but both rims and spokes (on both my HS and my x5) were stock factory wheel builds, as were the wheel builds on my 9Cs, and you simply can't compare the two.

I realise that I just listed a bunch of serious grievances about my HS, and then pretty much only complained about my 9Cs wheel builds (which can be fixed), and their tendancy to crumple under abuse. But I hate to say it but I love my HS. As Chris Rock says, "You have not loved someone until you have thought about killing them! Until you have stared at that rat sack, and practiced your alibi.... you have not loved that person!".....

I love my HS..... my 9Cs are like those girls off backroomcastingcouch. I can't fault them but I.... just..... feel..... cold.......about them.....

 

[dogman dan]

Exactly, your HS suits your riding conditions perfectly. For me, on the rock staircases, a lighter hub is better at the price of running a bit less power into it. Just depends on the needs of the job at hand.

I raced a 9c quickly to death, so I totally understand it's the wrong motor for serious watt hogging. But for "normal" use, say below 1500w, the 9 c is still a solid choice that isn't so heavy. The weight difference is not so big though, so if you do plan to punish a motor, the clyte should be the better choice. I just wish they'd do something better for the wire exit.