Don't think there are any inline-4 250 already here. Long ago there was the ZXR 250 which sounder just great. Today, many bikes up to even 900cc are on twins already. Only bikes I can think of below 1,000cc with an inline-4 are the XJ6 series and the similar recond FZ6R by Yamaha and the CBR600RR by Honda...

Any other inline-4 below 1,000cc out there?

a lot. cheapest now maybe XJ-6?

i won't say 2 piston would be relaxing on the highway but it does not vibrate as much as 1 piston lol.

I've rode duke 200 and I'm currently on R25 and the vibration is massive. duke 200 would make my hands numb after 30 minutes of continuous riding (around 100km/h -120km/h) while r25 i can ride for one hour or more with less numbness on my hands.

sounds? depending on ur exhaust system, some 1 piston bike sounded so good while some 2 pistons bike sounded so bad.

no u won't get the sound like the 4 inline ones... the 4 inlines sound is..... orgasmic....

yes ive thought of that before. however my purchase was influence by the way i ride the bike for long distance. i just having trust issue with the reliability of benelli thou the sound even from stock exhaust was good rather than r25. my r25 have been went and forth from kl to penang for 8-9 times since i bought it and still going great.

the only thing about 250cc on a long journey is the uneasy feeling that sometimes i did push the bike too far and yeah 250cc is just 250cc and i do have to stop often for filling the tank or because i do abuse it on the highway recklessly.