thunderbird twinspark 500cc launched by royal enfield

Royal Enfield has 
not
 launched Thunderbird Twinspark 500cc today at the AutoExpo. The 499cc Twinspark OHV engine will produce 27.2 bhp power @ 5250 RPM and 41.3 Nm of torque at 4000 rpm.

Royal Enfield Thunderbird Twinspark 500cc Specifications