Hi, im going to start building a new bike (derbi senda) soon and i have about 500-600 euros of spare money to spend on tuning it, it already has an 80cc airsal cylinder, 25mm dellorto (probably going to change it out for a 24mm pwk) and its going to get an mvt s race 70-90 exhaust, i have enough money left to buy an inner rotor kit but im not really sure if they are worth it, because its not going to be a crazy drag bike or something. So my question is, are they worth 200€ or am i better off with spending it on something else ?
I would probably get this one, since its the cheapest and comes from a reputable company. https://www.maxiscoot.com/italkit-a...elettra-derbi-euro-3-d50b0-ikee-002-06-3.html