Check the listing for details. Shimano EW-SD300 Di2 ETube Electronic Shifting Wire for 12-Speed ONLY, 600mm. Color: Black, Condition: New. Listed at 19.95 USD. Powered by Frooition Shimano EW-SD300 Di2 ETube Electronic Shifting Wire for 12-Speed ONLY, 600mm Item Description Link up The EW-SD300 E-Tube Electric Wire is the essential connection between your Shimano Di2 components to keep you shifting to your hearts content. Product details More compact design makes new electric components smaller and lighterWill potentially expand the future capabilities of Di2 systemsFor internal routing usage (wire holder included)Wire diameter: 2.4mmPlug diameter: 3.45mmGo green and save green - Zero packaging means zero waste and zero extra costNOT COMPATIBLE WITH 10/11 Speed Di2 $19.95 NEW Shimano Powered by Frooition Frooition Frooition | No-js Template | eBay design, eBay store design, eBay shop design, eBay template design, eBay listing design (ver:froo_no_js) This listing is currently undergoing maintenance, we apologise for any inconvenience caused.