Current aluminum mount problems
Aluminum motor mounts have well documented breaking problems. From DIY offerings to some of the bigger electric skateboard manufacturers this has continued to plague the market:
- Prone to cracking and breaking at the truck mounting area
- Doesn’t protect the end of the motors from damage
- Motor mount bolts need to be tight due to the vibration and torque. Tightening bolts down so they don’t slip can compress and weaken aluminum
- When the mount does break it can be catastrophic, potentially needing to replace the motor and damaging the board
The science and numbers behind it all
We designed our precision machined mounts from 4140 Chromoly to combat the high stress and demanding fast paced environment of today's electric skateboarder. Traditionally used for roll cages, clutch parts, firearms and structural tubing it was an excellent choice due to it's toughness, impact resistance and high fatigue strength.
4140 Chromoly vs. 7075 Aluminum:
- Shear Modulus: 11,600 ksi vs. 3,900 ksi
- Elastic Modulus: ~30,000 ksi vs. ~10,400 ksi
- Hardness, Brinell: 197 vs. 150
- Tensile Strength: 95,000 psi vs. 83,000 psi
Our Evolve Skateboard Motor Mount Solution
We originally developed the mounts for the DIY market but due to the demand and frequency of Evolve Skateboard motor mounts breaking on stock boards also released an upgraded Evolve Skateboard motor mount replacement for current owners.
In addition to the upgraded strength the mounts protect the motors from damage as well as helping stand up your board when not riding . We offer them in a variety of colors to customize and upgrade your board!