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SHIMANO's SM-JC41 Junction B is the central connector for DI2 systems
The Digital Pressure Overdrive features a durable steel and aluminum construction paired with a digital gauge for ultimate accuracy and precision
Lacing (Rear) DBL
RAP 6 multi-tool
Cerakote ceramic coatings utilize state-of-the-art technology to out-perform any competitive coating in both laboratory settings and real world applications
Topeak Joeblow Urban Ex Floorpump Giant SHIMANO's SM-JC41 Junction B isA versatile floor pump specifically designed to inflate a wide range of tires featuring a large 3. 5" easy to read base mounted analog gauge for measuring tire pressure accurately. The larger steel barrel delivers more air per stroke for quick and easy inflation up to 120 psi 8 bar. Equipped SmartHead pump head automatically adjusts to fit either Presta or Schrader valves and is one of the best value floor pumps on the market. Specifications HEAD
