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The SHIMANO ALIVIO M3100 rear derailleur delivers a low profile design that lets you ride aggressively with fewer interruptions thanks to its SHIMANO SHADOW design
Castelli has innovation in our DNA
Clamps to the seat post with 29-35mm diameter
Topeak JoeBlow™ Max HP
They are ideal for cross-over riders who enjoy both trail and casual riding
Silca Super Secret Starter Pack Stripper gravel-box-shipping The SHIMANO ALIVIO M3100 rearSILCA Chain Stripper is the world's first wax optimized chain cleaner which not only removes greases and oils, but actually primes the metal surface for improved adhesion from wax lubricants. SILCA Chain Stripper is a highly concentrated, biodegradable degreaser combined with a wax adhesion promoter (primer) which allows for fast, single step preparation of factory chains for waxing while also improving wax adhesion and increasing longevity. SILCA