Whats the difference between the 1940 and XL 2400?
 

Whats the difference between the 1940 and XL 2400? Looking at the stats I don't see much of a difference except price. Why?

1940 is a bigger size motor with way more torque to push 1/8 trucks. XL2400 is small motor for small/light cars

What truck are you sticking the 1940 in if its about 8-9 pounds it will work fine, but if its 10-12 pounds get the 1950. Plus you know to pick the wind based on voltage. Around 30,000 rpm's would be nice, later bro.