RC390 - Pure Adrenaline! (Looking for Mod Ideas)

[Danieljoe]

Loving the adrenaline rush of the RC390! This bike is a blast on any road. Thinking about adding some performance mods - any suggestions?

 

[Sloppy McFloppy]

I've heard getting an ecu tune can waken up the bike in the mid-range of rpms. I've also opted in getting a higher teeth sprocket to increase the acceleration. Stock rear sprocket is 45t, I bumped it up to 47t. Hard to gauge how much quicker it is by feel but it seems nice when I get to compare it to my friend's stock rc. I lost top end speed but for a 400 I don't really care

 

[Zac69]

Hi, I have a 2022 RC 390 (in Italy) ad my stock rear sprocket is a 44T. I am looking for a 45/46 sprocket as I ride it on a slow track. Does the chain get too short with your 47 sprocket? Did you purchase it in the Power Parts list or at different maker/dealer?