The Park Tool SBC-1 is the spoke, bearing and cotter gauge that has been on mechanics' benches since the 1970s. This Park Tool gauge measures spoke length, identifies the diameter of bearing balls and crank cotters, and also works as a general-purpose ruler in the workshop.
The body is made of anodized aluminum with embossed markings. It carries a metric scale from 0 to 310 mm and an inch scale from 0 to 12.25", used to measure both J-bend and straight-pull spokes. The same tool features gauge holes for the most common bearing balls and for crank cotters.
How to use the Park Tool SBC-1 gauge
- Measuring J-bend and straight-pull spoke length when building or repairing a wheel.
- Identifying the diameter of 1/4", 7/32", 3/16", 5/32" and 1/8" balls.
- Recognising 8, 8.5, 9 and 9.5 mm crank cotters.
- Taking general measurements in millimetres or inches, just like a normal ruler.
Why choose the Park Tool SBC-1
- Three functions in one tool: spoke ruler, ball gauge and cotter gauge.
- Metric and SAE scales on the same body.
- Anodized aluminum with embossed markings, built for daily use.
- A Park Tool classic found in workshops for decades.
Compact and always useful, the Park Tool SBC-1 spoke, bearing and cotter gauge is the measuring tool to keep within reach next to the truing stand.
TECHNICAL SPECIFICATIONS
General
- Code: SBC-1
- Type: gauge for spokes, bearing balls and crank cotters
Dimensions
- Metric scale: 0-310 mm
- SAE scale: 0-12.25"
- Ball gauges: 1/4", 7/32", 3/16", 5/32", 1/8"
- Cotter gauges: 8 mm, 8.5 mm, 9 mm, 9.5 mm
Materials
- Body: anodized aluminum with embossed markings
Compatibility
- J-bend and straight-pull spokes
The Park Tool SBC-1 is the spoke, bearing and cotter gauge that has been on mechanics' benches since the 1970s. This Park Tool gauge measures spoke length, identifies the diameter of bearing balls and crank cotters, and also works as a general-purpose ruler in the workshop.
The body is made of anodized aluminum with embossed markings. It carries a metric scale from 0 to 310 mm and an inch scale from 0 to 12.25", used to measure both J-bend and straight-pull spokes. The same tool features gauge holes for the most common bearing balls and for crank cotters.
How to use the Park Tool SBC-1 gauge
- Measuring J-bend and straight-pull spoke length when building or repairing a wheel.
- Identifying the diameter of 1/4", 7/32", 3/16", 5/32" and 1/8" balls.
- Recognising 8, 8.5, 9 and 9.5 mm crank cotters.
- Taking general measurements in millimetres or inches, just like a normal ruler.
Why choose the Park Tool SBC-1
- Three functions in one tool: spoke ruler, ball gauge and cotter gauge.
- Metric and SAE scales on the same body.
- Anodized aluminum with embossed markings, built for daily use.
- A Park Tool classic found in workshops for decades.
Compact and always useful, the Park Tool SBC-1 spoke, bearing and cotter gauge is the measuring tool to keep within reach next to the truing stand.
TECHNICAL SPECIFICATIONS
General
- Code: SBC-1
- Type: gauge for spokes, bearing balls and crank cotters
Dimensions
- Metric scale: 0-310 mm
- SAE scale: 0-12.25"
- Ball gauges: 1/4", 7/32", 3/16", 5/32", 1/8"
- Cotter gauges: 8 mm, 8.5 mm, 9 mm, 9.5 mm
Materials
- Body: anodized aluminum with embossed markings
Compatibility
- J-bend and straight-pull spokes
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