Tiagra SL-4600 2-Speed Left Flat Bar Shifter internally geared hub part it accommodates both Presta and

it accommodates both Presta and Schrader valves seamlessly

Laser-cut and heat-treated 410 stainless steel braking surface provides increased life and oxidation prevention

The design holds air considerably longer due to the purity of the rubber compound and the uniform wall thickness

HyperGlide 6

5 mm chain line

Tiagra SL-4600 2-Speed Left Flat Bar Shifter internally geared hub part it accommodates both Presta andThe Shimano SL 4600 flat bar shifter features Shimano's Super SLR technology, Instant and 2 Way Release functionality, and an optical gear display for clear visibility. The Super SLR design makes use of a friction reducing mechanism in the lever and cable that improves response and modulation Rapidfire Plus technology allows for quick shifting, giving riders the ability to downshift three gears in one stroke 2 Way Release means that shifts can be