Velobike Chainring Clearance Gauge

A useful measurement tool developed by Velobike. Each tooth on this gauge represents a different size chainring from 49 to 70, allowing you to easily find the maximum chainring size that will fit on your track bike.

How to measure:

1. Bolt the gauge onto your crank
2. Rotate the crank to observe tooth clearances with the frames chain stay
3. Identify the optimum size chainring for your setup.
4. Chainring or bottom bracket spacers may be used to offset the chainline to increase the chainring clearance.

Specifications:

• 144 BCD
• 49 to 70 teeth
• CNC machined from PE plastic
• Gloss black
• Note: this is a sizing tool only, it is not designed to interface with a chain