Gear Reduction & Motor Plates

Thunderstruck offers several motor mounting and reduction drive options. Please contact us if you have custom requirements.

We build our own reduction drive assemblies to supplement our Sailboat Conversion Kits from stainless steel hardware - these assemblies include mounting plates and supports, reduction pulleys or sprockets, thrust bearings for prop shaft loads, and prop shaft couplers. 

We also offer access to the Torque Trends reduction drive assemblies, which are popular for custom high performance single speed EV conversions. 

$50.00
Our Kart Plates are designed to bolt directly to a standard 50mm kart axle bearing holder and have a 5 7/8" bolt circle that allow the motor to be tilted to...
In stock

$50.00
Manufactured from 0.125" Cold rolled steel. 10" x 10"  Nema C Face (5 7/8" bolt circle). Fits most of our motors, but too small for the ME1507 or...
In stock

$3,895.00
The ev-TorqueBox is a single speed reduction gearbox for use in electric automotive, marine and industrial applications. The ev-TorqueBox is 95% efficient,...

$900.00
* Now With Chain Drive * This reduction drive kit for 12-25kW and AC kits uses components rated for more power to meet the needs of a larger vessel....
In stock

$850.00

Gear reduction plate for sailboats. Comes standard with a 2:1 gear reduction pulley set mounted on a 1" drive shaft.

In stock