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Crystalyte motors

Crystalyte factory web site

NOTE: The first two digits of the Crystalyte model number scheme refer to the *thickness* of the motor, while the second pair (typically either 25 or 40) refers to the top speed of the motor (km/Hr @ 36V, in 26" wheel?). Therefore, a 'high' second part number means a "fast wind" motor.

Models available: HS 3540 Higher Speed,Lower Torque Note that even though it is lower in torque,it still has great hill climbing ability @ 48v expect top speeds of 45 to 50 kms per hour HT 3525 Lower Speed, Higher Torque If you live in a hilly area this is the baby for you @ 48v expect top speeds at 35 to 40 kms per hour. [older "5300" series were 6 pounds heavier] []
In the summer of 2011 Crystalyte released a new series that may become a game changer, an affordably priced and rugged hub motor designed with the US market in mind. The model shaves 10 pounds off the older 5304 series, and a lower price as well. You can find the new Crystalyte motors from some dealers for as low as $280.
The Hx25 is the front wheel version
The Hx35 is the rear wheel version [35 = 35mm motor width]
the "T" stand for Torque, faster start but more power, but less top speed T
he "S" stand for Speed, slower start but high speed
The Hx series is like in between 4x and 5x, 9c, Bionx, all mix into two version (front and rear) of motors.
... Hx35 is a like mix in between 408, 9c, 5304, a bit of Bionx (narrow motor case that can fit 7,8, 9 freewheel easily).
- the motor is lighter then both 408, 5304
- the construction is almost like 9c stamped stator (it makes the motor lighter, and cheaper to manufacture)
- the magnet no longer sharped in curve, but standard straight magnet, it reduce the cost
- the motor case is extremely narrow, in the flange distance, bionx is 35mm, Hx35 is 38mm, which mean no dishing necessary
All Hx series is sensorless.
HT2425 weight 12.60 lbs
HS2440 weight 12.88 lbs
HT3525 weight 16.60 lbs
HS3540 weight 16.38 lbs

Crystalyte HT3525

Factory web page for "H" series motors

Crystalyte HT3525 rear hub motor, purchased from Ed Lyen, 4 Sep 2013, $380.00 USD ($349 + $31 shipping). Mounted in 406/20" spoked Odyssee rim/wheel (laced by DAS).
Here is the Tringa G 's RHT3525 Motor Test Run video made by Ed Lyen for this specific motor.

@ 48v expect top speeds at 35 to 40 kms per hour (21 to 24 MPH) - on test bench, no load, full (new) battery, 23.5MPH indicated via magnetic sensor glued to hubmotor and read via Sigma 1009, programmed to 1,658mm wheel circumference (20" Schwalbe Big Apple Plus). Number of "poles ("magnet pairs" used for setting speedometer on CA): 23 is correct number. I programmed CA to use this value, and the speedometer on the CA was in "perfect" agreement with the Sigma, set to the same wheel circumference

Top speed in 26" wheel: 25-27mph @ 50V 30-40A; 31-33mph @ 72V 30-37A
This motor can be used to regenerate power to the battery and provide motor braking. This sturdy motor is also known for being very quiet.
Features built-in 2K thermal sensor.
ES: crossbreak Sep 02, 2013 "... setup your CycleAnalyst V3 so it throttle down the motor if 90°C" is reached ...
NSK bearings. Honeywell S411 hall sensors. Axle is machined for 135mm dropouts but is long enough for 175mm dropouts. Up to 7spd freewheel can fit in 135mm dropouts. A freewheel with a higher sprocket count can be installed with a spacer washer. Standard 6 bolt disk brake mount. Weight: 16.25 lbs. Color: Black.
Re: New Crystalyte Motor series (HT35 / HS35 and HT24 / HS24 Postby Andje Tue Mar 08, 2011 3:29 pm Throwing this out to the wind; does anyone know what spacing we would put into the spoke calculator for these motors? Hub Flange Diameter/Flange Spacing is listed on the tech info, i just want to make sure this is correct before ordering spokes. HX35 Flange spacing; 1.5" 38mm HX35 Hub flange diameter; 8.75' 222mm

Crystalyte H3548 (UFO)

Factory web page -- drill down for "2017/UFO H" series (some engineer thought the motor housing made it look like a UFO) motors.

Key Parameters:

photo of Crystalyte H3548 rear hubmotor

UFO "H" motor series "upgrades" include:

photo of Crystalyte H3548 rear hubmotor's model and serial number

Crystalyte H3548 rear hub motor, purchased from Justin/Grin Technologies, 1 May 2019, $439.90.00 USD ($395.00 + $44.90 shipping; delivered 8 May 2019;). Mounted in 406/20" spoked Crystalyte rim/wheel (laced by Crystalyte).

photo of Crystalyte H3548 shipping label

Current application for this motor: eRowbike1, with Phaserunner controller.














Revolt web site
REVOLT Motors (Israel) Revolt2012 Ltd Igal Alon 9 Kiryat Motzkin, 2643109 Israel Alexey.K +972526600488 +972544762121 near Haifa Not the same company as Revolt Custom Electric, LLC, or the open source BMS project ("Open-Revolt-BMS") at See also: SkyRide Technologies, LLC; eRowBike;

Our stock motor is 45KV but We can wind the motor for other KV's according your needs (if it's reasonable KV-no extra cost).


Post subject: Re: Weight Sensing Longboard with Inline Wheel Motors
PostPosted: Thu Apr 25, 2013 11:31 pm













Grin All-Axle motors

For the latest information about this motor, see the all-axle-hub-motor.html page on the manufacturer's (Justin's) site.

These motors are currently being used on the eG20 bike and the eStreetMachine.

The following shows our first all-axle motor on the BogieDyno after the (failed) cable repair. While the motor spins fine, one of the Hall sensor wires is still broken so the motor won't start from a complete stop. You can tell by looking at the CA display that even though the motor is spinning freely (using 26 watts), the speed display remains at "0.00 mph". Without the three fully functioning Hall sensors, the motor doesn't output a usable speed signal. The temperature display does work however, showing 15.2 degrees Centrigrade in the cool basement.

The motor is connected to the BogieDyno using a DIY adapter to go from the 'new' L10 style to the earlier combination of Anderson PowerPole (power) and JST-SM (signals) used by the BogieDyno.

Here we can see the Grin wheel-builder's signature markings on the rim tape of our second all-axle motor, made on July 30, 2020. It's first use will be on the eG20, with a narrower 1.95" Snafu BMX tire.














RC/Flipsky motors

This category contains all small BLDC (in-runner or out-runner) motors. The most common models of this type that we have used are manufactured by Flipsky.





Skateboard hub motors

Shown below are a pair of 70mm skateboard hubmotors mounted on a "rear truck" specifically designed to accommodate hub motors. These are typical BLDC "outrunner" motors, powered via three phase wires (black, blue, and yellow) per motor. These came from the factory with 4mm male 'bullet' connectors alread affixed. For the amount of current that these motors can draw, the phase wires seem rather skimpy. These motors are also equipped with three Hall Sensors, which are powered by the controller with 5VDC plus and ground (red and black wires). This functionality is enabled via the thinner 5 wire bundle coming out of the motor, terminated by a five position JST-PH female connector. When used with a "smart" controller like the VESC, it doesn't matter in which order the Hall or phase wires are connected to the controller since the controller will determine the correct order as part of the setup process. Look under the VESC-TOOLŪ section for more information about this process.

The skateboard hubmotors we're using are being delivered with a 5 pin female JST-PH connector on the signal wire bundle. These five wires consist of the standard red (positive) and black (negative) wires for suppling the 5VDC current for the Hall Sensors, and the three remaing wires (yellow, white, orange) are for the three Hall signals coming from the motor.

The corresponding JST-PH male header/connector socket on the controller, however, is designed to accommodate a sixth optional wire to connect to a heat sensor in the motor. Our motors don't have a heat sensor, so this shoots down a plug-and-play solution. The following photo shows the process of having to carefully remove each of the five motor wires from the five position JST plug. Carefully pry up the small plastic tab over each pin just enough so you can pull out each wire. It helps to push the wire further *into* the connector while prying up to create some space for your prying tool. Not shown is then re-inserting these same wires into a six conductor JST-PH plug, skipping the position for the temperature sensor wire. Once this is accomplished, you can simply plug the motor's signal wires into the corresponding (keyed) socket on the VESC controller.

Shown below are a complete set of four 90mm (approx. 3.5") skateboard wheels mounted on trucks. Due to market trends of price and availability, JPods is standardizing on the 90mm wheel diameter format. The top two are hubmotors, and the bottom two are passive wheels. The three power phase wires for these motors feel flimsy compared to the flexible silicone insulated wires of the motors above, and the smaller bullet connectors also seem inadequate for handling any significant current flows. If drawing the full 550 watts that these motors are rated for (see specs below) while using a 6S (24 volt) battery pack, the phase wires and connectors will be carrying nearly 23 amps of DC current. (To do: measure gage of wire ... initial estimate is 18AWG, using coarse copper strands.)

The five signal wires for these motors will also need to be redone into the JST-PH-F6 connectors (see above) to connect directly to the VESC dual controller board. The manufacturer saw fit to add some hot glue where the wires enter the backs of the connectors, so this will have to be dealt with as well.

Motor specs, per vendor's ("PROMOTOR") website: (sold via Amazon, Aug 2020)
Type:brushless out runner motor
Power: 550W each motor
Speed: 70KV
Input voltage: 24V-42V (6S-10S)
Truck: 7 inch
Wheels: 9053
Color: Orange
Wheel dimension: 90mmx53mm


The photo below adds the VESC 6.6 Dual BLDC motor controller, which is functionally equivalent to a pair of identical single VESC controllers connected to each other via a CANBUS communication protocol. This combination of two controllers on a single PCB simplifies the task of having both motors controlled by a single throttle input. For this project we'll be standardizing on 83mm diameter hubmotors, which look just like these but are larger.


When used with a VESC controller, the 83mm in-wheel hubmotors we're using on the skateboard bogies do not require having their phase (power) wires individually identified. You might encounter some motors and/or controllers in which the phase wires have been identified as being either blue, yellow, or green. This was likely done for testing with other BLDC controllers where this color sequencing was necessary. The "smart" controllers like the VESC series (and Grin Phaserunner) will internally map the correct sequencing of these phase wires when the controller is matched to a specific motor via the 'autodetect' process (see under VESC controllers, Motor Detection). Since we've standardized on the VESC controllers, this means you can safely ignore color markings on phase wires as long as you go through the appropriate motor detection process each time you change *either* the motor or controller combination! This also applies to the color-coded Hall Sensor signal wires, but NOT to the red and black voltage supply wires, which must *always* be correctly connected. Confirm this visually by matching wire colors to the silkscreen labeling next to the connector on the controller board.













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