General Information

The following information provides general equipment and service information that will help you to use this manual to properly repair and maintain the bike.

Serial Numbers

 

 

Tools

Bolt Grade Identification

Bolt grade markings are used to categorize bolts according to the bolt material, manufacturing process, and mechanical properties.The grade of the bolt is stamped on the head of the bolt.

US SAE bolts: The bolt grade markings are determined by the number of the lines stamped on the head of the bolt. The number of lines is always two less than the grade of the bolt. Count the lines, add two, and you can determine the grade of the bolt.

Metric bolts: On metric bolts, the bolt grade is identified by a bolt grade number stamped on the head of the bolt.

CAUTION: Always replace bolts with the same grade bolt. If you don’t know the grade of the replacement bolt – DO NOT USE THE BOLT.

Bolt Grade Markings Chart

Example bolt grades used on Precor equipment (may not represent all bolt grades). Always match the replacement bolt grade marking to the removed bott grade marking.

 

 

 

Contact Precor Customer Support (Ph 800.786.8404) with any questions.

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