1. cmb271

    Nut size for 4g transmission rear sprocket

    Hey everyone, I'm in the process of rebuilding the 4g transmission for my 4 stroke after the bolt that held the 10t rear sprocket fell off causing a domino effect of transmission failure. I got another sprocket but I don't know what size nut goes on the threaded shaft, anyone know?
  2. inspectorcritic

    New Gear Sprocket

    I just order from BikeBerry a T 41 gear in hopes of getting a little more speed than the stock T 44 how much more speed should I anticipate my speed right now averages 20 MPH + or - 2 MPH?
  3. The-DMV

    Loud gear sound when revving?

    When I rev my engine, I get hear a loud gear sound that's almost louder than the actual engine. Any ideas of what it could be? Here's a video I took with my phone: After riding for 15 minute, it seemed to get worse.