Alekor, Nice Machine. Is That An 8 Speed Rear Wheel?? I Can Not Connect With The Url Link. If You Get The Titan Hs Motor It Will Bolt On In 10 Minutes. Or, Are You Going To Have 2 Motor Bikes?? PICS OF MY 7 SPEED SHIFTER WITH THE TITAN HS 50CC 4 STROKE AND THE 5:1 RATIO GEAR BOX LIKE YOU ARE USING. I LOVE THE SHIFTING OPTION. Ron