made the following progress already:
1. valves checked and adjusted
2. adjusted chains
3. tires upgraded front (120/90/18) rear 130/70/17
4. change carb to 34mm with 145 main jet
5. cleaned air filter
6. spark plug changed to iridium
however i feel that the bike still is not that responsive? on the highway the bike still struggles to reach 105kph here's a video of my shifting pattern.
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