Yamaha RX100 VS RX135, Which is more powerful? This is the most common question I get asked everytime, literally everytime. People are confused whether to choose the RX100 or RX135. I have ridden both RX's and I like the RX100 for it's initial power and RX135 for its refined, smooth engine with amazing top end. I miss the iconic exhaust sound (of the RX100) on the RX135 though. You can never get the iconic beautiful exhaust sound of the RX100 in RX135 because of the engine, so if you are mad about the mesmerizing exhaust sound of the RX100 you will have to get the RX100, But the RX135 is a more practical motorcycle, RX100 is great for city riding but once you leave the city and head onto the highway you feel that the engine feels stressed at high rpms while you're doing somewhere around 80-90kmph.