These would work pricey at $96
IRD Power Ratchet Thumb Shifters > Components > Drivetrain > Road Shifters | Jenson USA
it looks like sunrace has upgraded from soft sheet metal clamps..... but
wallmart has these at $7.00 say 7 speed and 22.2 but has soft clamp...pull is question
https://www.walmart.com/ip/Sunrace-S...&wl13=&veh=sem
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