Modifications
XMODS can be extensively modified using parts supplied by RadioShack and other aftermarket vendors. The starter kits advertise the ability to change the motor, wheels, tires, trim kit, springs/shocks, and bearings (From nylon bushings to steel bearings), add lighting kits, and swap the crystal to allow the cars to operate on multiple frequncies. (Note: The crystal has been discontinued.)
Tutorials for modifications are also available on various XMODS forum sites. In Japan, HPI distributes XMODS, in Europe distributed by CARSON Modellsport, with the cars having the same colors as those offered in the U.S. by RadioShack, but also some exclusive body colors and body tops not available to the US market.
Even though each model has a different body, all models in a particular line share the same or similar chassis. The most notable difference in the chassis is its length relative to its body top. You can also add motor upgrades onto them for faster speeds.
While using non-RadioShack upgrades, it is possible to achieve up to and over 40 MPH.
Some people have used servo motors in their XMODS trucks to achieve higher torque, resulting in easier crawling, but with a very limited top speed.
People have modified the electronics by using hobby grade electronics, improving the speed, range, and smoothness of the servo in XMODS.
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