The Sunrace M96 Thumb Shifters are a top - notch choice for classic flat bar bikes. These shifters feature a friction front shifter and an indexed rear shifter. They are also fully compatible with Shimano components, offering you a reliable and smooth shifting experience.

Using the Sunrace M96 Thumb Shifters is easy. For the front shifter, use the friction mechanism to adjust the gear as needed. You can make fine - tuned adjustments for a precise fit. The rear shifter has an indexed system, so just click it to move through the gears. When installing, make sure to follow the instructions carefully and ensure proper alignment. As for maintenance, keep the shifters clean by wiping them regularly with a dry cloth. If they get wet, dry them thoroughly to prevent rust. And if you notice any issues with shifting, check the cables for wear and tear and replace them if necessary.