{"product_id":"shimano-electric-wire-ew-sd300-di2","title":"Shimano Electric Wire EW-SD300 Di2","description":"\u003cdiv class=\"row\"\u003e\n\u003cdiv id=\"product-copy\" class=\"col-12\"\u003e\n\u003ch5 id=\"description\"\u003eDescription\u003c\/h5\u003e\n\u003cdiv class=\"p-0 m-lg-0 pt-2\"\u003e\n\u003cdiv class=\"product-copy-wrapper\"\u003e\n\u003cdiv class=\"product-copy\"\u003e\n\u003cp\u003eShimano redesigned their Di2 wiring when they launched 12-speed, and the EW-SD300 is the result. The cable diameter dropped to 2.1mm with a 3.2mm plug—noticeably smaller than the SD50 wires used in 11-speed systems. This reduction makes internal routing easier through tight frame passages and allows for more compact junction points throughout the system. The smaller connectors also enabled Shimano to shrink the components themselves, which is part of how 12-speed Di2 derailleurs ended up lighter than their predecessors despite gaining a gear.\u003c\/p\u003e\n\u003cp\u003eWith 12-speed road Di2, the wiring architecture simplified dramatically. The shifters communicate wirelessly with the system, so wires only need to run from the internal battery to each derailleur. A typical R9200 or R8100 build uses two SD300 wires—one to the front derailleur and one to the rear—with no junction boxes required. The rear derailleur handles all the system communication that previously required a separate wireless unit. For most builds, a 750mm wire reaches the front derailleur and a 1200mm wire handles the rear, though frame geometry and battery placement affect actual requirements.\u003c\/p\u003e\n\u003cp\u003eShimano offers the SD300 in lengths from 150mm up to 1600mm to accommodate different frame sizes and routing paths. Measure your routing before ordering since these wires cannot be cut or shortened—the connectors are molded onto each end and trimming would destroy them. When connecting SD300 wires, use Shimano's TL-EW300 plug tool to seat the connectors without damaging the smaller pins. The old TL-EW02 tool designed for SD50 wires doesn't fit the SD300 connector diameter....\u003cspan\u003e \u003c\/span\u003e\u003ca class=\"read-more-btn\"\u003eRead More\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-12 pb-5\"\u003e\n\u003cdiv class=\"p-0 m-lg-0 pt-0\" id=\"features\"\u003e\n\u003cdiv class=\"product-features\"\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eE-Tube wire for 12-speed Di2 systems (R9200, R8100, R7100)\u003c\/li\u003e\n\u003cli\u003e2.1mm wire diameter with 3.2mm plug connectors\u003c\/li\u003e\n\u003cli\u003eAvailable in lengths from 150mm to 1600mm\u003c\/li\u003e\n\u003cli\u003eFor internal and external routing applications\u003c\/li\u003e\n\u003cli\u003eAlso compatible with EP8\/EP800 e-bike and STePS systems\u003c\/li\u003e\n\u003cli\u003eRequires TL-EW300 plug tool for connection\u003c\/li\u003e\n\u003cli\u003eNot directly compatible with 11-speed Di2 (use EW-AD305 adapter)\u003c\/li\u003e\n\u003cli\u003eCannot be cut or shortened\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Shimano","offers":[{"title":"1000mm","offer_id":45778029248673,"sku":null,"price":18.0,"currency_code":"OMR","in_stock":true},{"title":"1200mm","offer_id":45778029281441,"sku":null,"price":18.0,"currency_code":"OMR","in_stock":true},{"title":"1400mm","offer_id":45778029314209,"sku":null,"price":18.0,"currency_code":"OMR","in_stock":true},{"title":"150mm","offer_id":45778029346977,"sku":null,"price":18.0,"currency_code":"OMR","in_stock":true},{"title":"1600mm","offer_id":45778029379745,"sku":null,"price":18.0,"currency_code":"OMR","in_stock":true},{"title":"400mm","offer_id":45778029412513,"sku":null,"price":18.0,"currency_code":"OMR","in_stock":true},{"title":"500mm","offer_id":45778029445281,"sku":null,"price":18.0,"currency_code":"OMR","in_stock":true},{"title":"600mm","offer_id":45778029478049,"sku":null,"price":18.0,"currency_code":"OMR","in_stock":true},{"title":"800mm","offer_id":45778029510817,"sku":null,"price":18.0,"currency_code":"OMR","in_stock":true},{"title":"900mm","offer_id":45778029543585,"sku":null,"price":18.0,"currency_code":"OMR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4837\/3409\/files\/118971-1.jpg?v=1772438919","url":"https:\/\/cyclekom.com\/products\/shimano-electric-wire-ew-sd300-di2","provider":"Cyclekom","version":"1.0","type":"link"}