Honda — Honda cbr250r

Address:	Ludhiana, Punjab, 141001
Website:	Honda

When i am riding the bike between 5000rpm to 6000rpm ot is ok but when i go further the rpm directly touches 10500rpm with out delivering any power to my bike so what should I do what might be the problem what should I do take my to the service station or it would be a engine defect when this problem occurs i was riding at normal speeed so plz help me to get resolve from this problem