Using the Wahoo Kickr Core with Zwift Click and Cog v2 bundle is easy. First, connect the trainer to your bike. The Zwift Cog v2 is designed to fit most 8 - 12 - speed bikes, so it should be a simple setup. Then, connect the trainer to your device using ANT+ or Bluetooth. Once connected, you can start your virtual cycling journey. When you're riding, the trainer will automatically adjust the resistance to match the gradient of the virtual route. Just focus on pedaling and enjoy the ride. As for maintenance, keep the trainer clean. Wipe it down after each use to prevent dust and sweat from building up. Check the belt drive system regularly to make sure it's in good condition. If you have any issues with connectivity, try restarting both the trainer and your device. Remember, this is a high - performance product, so handle it with care.