State Bank Of India [SBI] — two wheeler loan

Sir,

I am a prevelaged customer of sbi. I am having current account in sbi, coimbatore branch for the past 10 years. I have availed a car loan also.
I have paid the loan for 5 years promptly and now want to avail a loan for a two wheeler for my son. The loan manager says sbi gives loan only to super bikes costing more than 5 lakhs.??? While the bike which i intend to purchase is for rs 1.5lakh. This is truly a service default to a sbi customer. I am asking can everybody want to open account in sbi can everyone afford to buy a super bike.
Is sbi giving loan only to rich