Paul Component Engineering Thumbies Shifter Mounts, Shimano 31.8mm Black
$123.06
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Paul Components Thumbies turn bar-end shifters into flat-bar shifters. Thumbies have a hinged clamp for an easy installation They have a shifter mounting boss that fits Shimano bar end shifters and most Shimano downtube shifters Machined in the USA of 6061 aluminum :
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