Emergency Reusable Air Pump (eRAP)is a pump designed for motorcyles below 150 cc and as an alternative to the existing pumps in the market by flow the carbon monoxide (CO) from exhaust into the flat tire during emergency case. It requires no energy while pumping and can fill in air in just a few seconds. The reausable air pump consits of some function that is very useful to the rider during the emergency case, like having a punctured tire along the highway where R&R is few miles away. It has been named as Reusable Air Pump as the device uses reusable air from the exhaust to do the pumping and this might helps to support green environment as well. RAP is portable, flexible, light weight, small size and also to do maintenance.