Manual transmission front wheel size 17 rear wheel size 14 four stroke single cylinder 125cc motor kick start seat height of 33.07 front and rear hydraulic disk brakes. The Apollo 125cc DBx18 contains a 4stroke single cylinder 125cc engine with a top speed of around 55 MPH. It is available in red blue or green colors. It features a manual transmission with front and rear hydraulic disk brakes and a twin spare heavy duty steel frame.