Park Tool, SPA-2, 2.3mm Pin Spanner

The Park Tool SPA-2 Pin Spanner is a professional-grade workshop specialty wrench designed to safely adjust threaded components featuring integrated pin holes. Equipped with a fixed 2.3mm (0.090-inch) pin configuration, it is a foundational tool for servicing older component standards and custom hub assemblies.

Key Features

• Broad Component Compatibility:
  Explicitly engineered to fit the one-key (self-extracting) release retaining rings on Shimano, Campagnolo, SRAM, and FSA cranksets, as well as the adjusting cones on classic multi-speed freewheel clusters (not freehubs).
• Flexible Pin Span:
  The high-carbon tool steel arms naturally flex to accommodate components with pin hole widths spanning anywhere from 10mm to 45mm apart.
• Industrial Resilience:
  Manufactured in the USA from premium hardened tool steel to survive high shop torque without cracking or shearing the small pins.
• Visual Anchor:
  Coated in an iconic red vinyl handle finish. The bright red styling allows for instant visual size identification on your tool wall, separating it from its blue (SPA-1, 2.9mm) and green (SPA-6) companion wrenches.

User Sentiment & Performance

Amateur bike restorers and commercial mechanics rate the SPA-2 highly, averaging 4.9 out of 5 stars in structural reliability.

• Anti-Slip Protection:
  Reviewers note that when the spring tension of the wrench arms is squeezed tightly into the component holes, it provides flush, balanced contact. This completely eliminates the slip-out that can easily mar or strip soft aluminum dust caps.
• Leverage Limits:
  Experienced users note that while it is perfect for precision adjustments and final tightening, frozen or rusted vintage freewheel cones may require a shot of penetrating oil or a light hammer-and-punch strike to safely break free initially.