The job
A nominal 2.3 mm pin diameter and 10–45 mm spacing for specifically supported retaining-ring contacts.
Park Tool · Pin spanner
Park Tool SPA-2 Red Pin Spanner
A nominal 2.3 mm pin diameter and 10–45 mm spacing for specifically supported retaining-ring contacts.
$13.95Nov 7, 26, 12:55 AM · New York
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- Contact Two pins for matching holes
- Pin diameter 2.3 mm nominal, per maker and selected bullet
- Hole spacing 10–45 mm
Contact
Two pins for matching holes
Check pin diameter and spacing
Both the holes and their separation must match; neither describes ring outside diameter.
What this choice changes
Two pin-hole contacts with flexible spacing
The SPA-2 engages a pair of holes rather than ordinary wrench flats. Park Tool names applications on selected self-extracting or one-key crank retaining rings. The flexible arms adjust to the hole spacing, while the nominal 2.3 mm pin diameter must independently match the holes.
The stated spacing is 10–45 mm. That range is not the ring’s outside diameter and does not make every retaining ring compatible. The high-carbon tool-steel body has a vinyl-coated grip. The seller also describes adjusting cones on older freewheel clusters; that wording must not be extended to every freehub.
Choose it after identifying the actual pin-hole fitting and required service procedure. A cone wrench for flats, a bearing puller and a pin spanner receive different surfaces. No retaining ring, crank or freewheel is included with the red SPA-2.
Specifications & supplied details
| Detail | Specification |
|---|---|
| Selected model | SPA-2/red |
| Contact | Two pins for matching holes |
| Pin diameter | 2.3 mm nominal, per maker and selected bullet |
| Hole spacing | 10–45 mm |
| Construction | High-carbon tool steel; vinyl-coated grip |
| Supplied | One pin spanner |
Choose for your actual setup
Check pin diameter and spacing
Both the holes and their separation must match; neither describes ring outside diameter.
Identify the receiving surface
A pin-hole tool is not interchangeable with a wrench for flats or a splined remover.
Fit checks & limits
- Variant label 2 1/3 mm is not treated as a separate precision pin diameter; use the nominal maker scope and verify actual fit.
- No universal self-extracting-crank or freehub compatibility.
- No 50 Nm tool rating adopted from the generic field.
Questions before you choose
Does 10–45 mm describe ring diameter?
No. It is the stated hole separation. The pins have a separate nominal 2.3 mm diameter.
Can I use it on every self-extracting crank?
No. Match the actual holes and exact service requirements; the maker’s examples are not a universal fit list.
Does the older freewheel application include every freehub?
No. The seller specifically distinguishes older freewheel-cluster cone use from freehubs.
Guides for this choice
Selected listing details, manufacturer information and source images were compared. No hands-on trial or universal fit is claimed. Product identifier: B001B6LNRQ.