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M21 rear derailleurs are designed to work with 6- and 7-speed Shimano road and mountain shifters
Constructed from 6061 Butted Aluminum for a high-strength design
Light and reliable thanks to the Tubeless Shield technology and 4x120 TPI casing
Do not bleach or iron Season Warm Weather Material Synthetic Gender/Age Men's Color Navy/White Size Small Cuff Length 7 Defined Color Blue
Increased steer/crown overlap improving stiffness
Burgtec Seat Clamp 38.6mm Iron Bro Orange MFPN=TB00161200 M21 rear derailleurs are designedAn effortlessly subtle and minimal design that keeps your seat post secure and adds the last splash of color to your build No edge left unsmoothed, and no detail overlooked Even the split in the back has been machined wide enough so there's no need to detach your dropper cable, which makes installation a breeze A stainless steel bolt gives reliable clamping power and ensures no rust even in the grimmest conditions Model Burgtec Seat Clamp Diameter 38.
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