I need clarification on a basic concept with a 143cc build. With the purchase of the BBK , an ARacer ECU, intake, tires, chain etc I didn't want to spend another $250-300.00 so I didn't purchase the AFI / o2 sensor. I was planning on getting it on a local Dyno for the tune. My confusion is...

So I'm in the market for an LED headlight bulb. The stock just doesn't cut it and would like something brighter for at night. I know the Z requires an H4 bulb and Im looking at something with a color temp. of either 6000k or 6500k. Only problem is the lumens, Im not sure how bright a 3000Lm...

Just bought a 2021 z125 a week ago put around 120 miles on it, got on it earlier today maybe rode five miles cut the engine off and went to start it a cpl minutes later and it won't turn over not even trying to push start wld work. Got it back home sadly in the back of a truck, CEL codes read 5...

I'm gauging interest in a good forged high compression piston kit for the 143cc big bore z125 kit, I have in the past had custom pistons made and the smallest quantity that I could have made was at least four. I am planning the 143cc kit for my bike and I cant find anyone willing to sell a...

Hi everyone how is it going I just recently install TST Industries led flush mount front turn signals led rear tail light and the universal license plate light I also installed all the connection adapters they sell and the led relay All of the lights are functioning fine I adjusted the...