Paul Component Engineering Thumbies Shifter Mounts Shimano 31.8mm Black ModelNumber=MSALSA57 }Full Speed Ahead Orbit Z

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Paul Component Engineering Thumbies Shifter Mounts Shimano 31.8mm Black ModelNumber=MSALSA57 }Full Speed Ahead Orbit ZPaul Component Engineering Thumbies Shifter Mounts Shimano 31. 8mm Black. 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