Both the Speed 400 and the Scrambler 400X are based on the same platform, however, they are made for different applications and have a lot of dissimilarities.
This list also includes a different exhaust canister that both the models sport. While the Speed comes with a single exhaust, the Scrambler is equipped with a 1 into 2 exhaust can. With exhaust notes gradually becoming an important buying parameter, here is a quick video that compares the sounds both the models produce, back to back. Earphones recommended…