Nissen SP31 Inner Wires

Description |

Upgrade your drivetrain or brakes with the SimWorks SP31 Inner Wire, crafted by Nissen using premium stainless steel and a refined 31-strand “Warrington” twist construction. With more strands than typical inner cables, it creates tighter packing that hones flexibility without sacrificing tensile strength—about 10 % stronger than comparable 19-strand options.

Each wire undergoes precision machining for roundness, then receives plasma plating for a slick, durable surface. This translates to smoother lever pull, extended cable life, and whisper-quiet shifting or braking. A finishing touch of pre-tensioning ensures minimal stretch on install.

Every pack includes two cables and end caps. Comes in variants for Shimano/SRAM shift, road brake, and MTB brake setups. ( Pair them with Nissen Shift or Brake outer cable housing)

Features & Specs |

• Manufacturer: Nissen Cable for SimWorks
• Construction: 31 stainless steel strands via Warrington twist
• Benefits: 10 % higher tensile strength than standard 19-strand cables; improved flexibility and smoothness
• Surface Finish: Machined for perfect roundness; plasma-plated for reduced friction and increased durability
• Stretch Management: Pre-tensioned (initial elongation controlled at the factory)
• Included: 2 cables per pack + 2 end caps
• Variants:
• Shift (Shimano / SRAM): 2.3 m
• Brake (MTB): 2 m
• Brake (Road – Shimano / SRAM): 2 m
• Made in: Japan
• Warranty: Manufacturer limited

Usage Tips |

• Choose the variant that matches your drive type and length.
• Install with smooth routing and good housing condition for best performance.
• If braking feels sticky, the SP31 reduces friction significantly.
• Salt-air riders? The stainless construction and plating resist corrosion.
• End-caps included, so you’re installation-ready right out of the box.