How do I measure the BCD on my front chainring

Thread8 Posts: 479

April 2010 edited April 2010 in MTB workshop & tech

As per the title, what is the correct way to measure the Bolt Circle Diameter on my front chainring?

Cheers in advance

Haro Thread 8
Please help!

"It's like parkour, on a bike"

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Comments

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  nicklouse Posts: 50,675

  April 2010

  http://www.sheldonbrown.com/gloss_bo-z.html
  
  or just tell us what it is.

  "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
  Parktools :?:SheldonBrown

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  Thread8 Posts: 479

  April 2010

  Cheers nick, iI'll give it a shot tomorrow
  
  I dont actually know what make it is, its the stock one that came on my bike

  Haro Thread 8
  Please help!
  
  "It's like parkour, on a bike"

  0
• 

  nicklouse Posts: 50,675

  April 2010

  pics? make and year of bike?

  "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
  Parktools :?:SheldonBrown

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