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Ships within 48 hours · Estimated delivery Sep 5 - Sep 10
The hollow plates reduce weight while the overall chain construction reduces rider effort and therefore improves riding distance 5% farther and drivetrain efficiency by 4% - go farther
A major innovation compared to the previous Di2 variants is the elimination of the central power supply
Zona simplifies setup
Conquer mountains and explore new paths with the refined power and connectivity of this high-performance mid-ship drive unit
Tektro R539 Rim Brake Caliper Set - Black (47-57mm Reach) bikebox The hollow plates reduce weightThese dual pivot Tektro brake calipers are designed for wide tyres! The R539 is a dual pivot caliper brake with a 47 57mm reach, featuring forged aluminum arms for strength and durability. It provides smooth and responsive braking performance, ideal for road bikes Brake Type: Dual Pivot Rim Pull Ratio: Short Reach: Mid 47 57mm Pads: P422 adjustable angle cartridge Weight: 160 grams per caliper
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