Shimano EW-SD300 Di2 eTube Wire - 1200mm Lubricants Tubeless-ready construction means lower pressures

Tubeless-ready construction means lower pressures

providing near-fixed foot positioning that suits riders with well-established cleat placement and foot alignment who want to eliminate excess float without stiffening the knee joint completely

If you're building or servicing any SRAM Eagle 12-speed drivetrain and want a chain that shifts precisely through all 12 gears without breaking the bank

It holds up to the elements without corroding or fading

A Comfort Core foam layer under the minimalist microtex cover reduces pressure on sensitive soft tissue through the full-channel cutout that runs the length of the saddle

Shimano EW-SD300 Di2 eTube Wire - 1200mm Lubricants Tubeless-ready construction means lower pressuresWhich Di2 Systems Use the Shimano EW SD300 1200mm eTube Wire? The Shimano EW SD300 is the slimmer, dedicated internal routing wire for current generation 12 speed Di2 systems, with the 1200mm length suited for longer routing runs typically front derailleur to battery connections, full suspension frame linkages, or any routing path that exceeds what the 650mm version can reach. The EW SD300 uses a smaller diameter connector than the older EW SD50,