Shyu Racing Running Socks - Black/Black/Black ZIPPMARCH Ultra-fast electronic shifting

Ultra-fast electronic shifting

8 x 5 cm WEIGHT 70 g

It appears to hover around the handle bars

SRAM's Eagle™ X-SYNC 2™ Boost Chainring offers precise shifts with greater durability

Helmet mounted designed to work with Trace/TraceR and Flash/Flare lights

Shyu Racing Running Socks - Black/Black/Black ZIPPMARCH Ultra-fast electronic shiftingSHYU performance running socks the first & only socks designed to match the race day shoe they are worn with. For the first time ever, we've taken from our traditional 3 colour SHYU and turned the lights out. Introducing the limited edition triple black colourway available in our traditional half crew and new quarter crew cuts. Our lightest, fastest performance running sock made for every shoe in your rotation