2021 Hyperdrive Production Update #1 - Motor build part 1

Redefine Electric Performance

This tag embodies the care and attention we put into building the Hyperdrive electric kits.  The end product, the Hyperdrive, is a result of 10 years of dedicated testing and custom building electric motor kits.  All the processes outlined in this blog are a result of real world testing at the limits of performance.  Kranked has done more real world testing in the high performance emtb space than any one else on the planet!  


Our hand crafted production run is maxed at 50 units.  These will be ready at a rate of 10 a month starting in late February.  

Let's start with the actual motor!  The motor comes from Headline motors in Taiwan and is rated at 650 watts.  We love this motor and have worked with it for 10 years now.  It is able to produce amazing power and torque, well above it's ratings when we tweak it with the Kranked magic.

The motors arrive as pictured below.


Step One:  We remove the faceplate, seal and bearing.

Step 2: We remove the control board exposing the stator and windings.

Step 3: We pull the stator out and true it into precision tolerance. It will spin up to 7500rpm so the precision truing allows for a more efficient and quieter motor. 

Step 4: Next we make sure that the front face of the stator is perfect too and free from any small production deviations as the tolerances we achieve with the gear reduction are precise.

Step 5: Remove the iron shards that are clinging to the magnets in the stator.  The smallest spec of iron can affect the important hall sensor reading.  The stators also have a magnetic attraction to each other, which happened to these two, thus the iron shards on the 'clean' stator!

Step 6: Next we cut off the existing pinion gear in order to install our own proprietary pinion.  This new gear reduction is the reason we have done the massive redesign for Version 5!  It has taken us 2 years to figure this reduction out!! So we are putting in the patent paperwork right now which means we can't publish anything yet about it!

Step 7: Remove the rear motor bearing as we replace this with a higher quality and larger bearing. 

This blog gives you a little insight into the first steps of building the motor.  Stay tuned for the next steps in the production process.

Ride Hard, Ride Free