Park Tool SW-12 Double-Ended Spoke Wrench — Mavic® 7-Spline

A precision tool designed for truing wheels with specialty Mavic® spoke nipples. The SW-12’s double-ended design allows for efficient wheel maintenance while using a spoke holder to prevent bladed aero spokes from rotating. Made in the USA, nickel-plated, and vinyl-dipped for durability and comfortable handling.

Features:

• Smaller end: Fits 7-spline nipples, 6.4 mm outside diameter — commonly found on Mavic® R-sys wheels

  • Matches Mavic® part numbers 10847101 & 99607901

• Larger end: Fits 6-spline rim fittings, 9.6 mm outside diameter with M7 threading — used on Mavic® XM819, EX823, and Speedcity wheels

  • Matches Mavic® part number M40652

• Precision machined for long-lasting service

• Nickel-plated and vinyl-dipped for comfort and grip