Downtube Friction shifters with ratchet mechanism for the drive side.

[Spokesmann]

Sun tour Power shifters with the ratchet system were among the best ever friction levers on the market, back in the day. Smooth, precise shifting. Still use them on my Jack Taylor.

 

[GuyBoden]

Sun tour Power shifters with the ratchet system were among the best ever friction levers on the market, back in the day. Smooth, precise shiting. Still use them on my Jack Taylor.

They are great bandon shifters, but they don't seem to fit on my braze on bosses, maybe Suntour had proprietary bosses for their shifters at the time. I have two pairs in the garage.