Identifying this Rim?

[R-N-D]

Thought the rim I have was for an 84' Big Red 200es. Turns out that it wasn't. So, how can I tell what it goes onto? How do I find out the bolt pattern? I'd like to move it along to someone who can use it but I need to know what it's for first before doing so. Thanks.

[muthey]

measure across from center of bolt hole to cent using a metric tape measure in millimeters or remember every 1 centimeter is 10 millimeters. by how many holes and that is your bolt pattern, also the big red style pattern is larger than the 185s and 200s bolt pattern both are 4 bolt but the big red is larger. Also the later yamaha's used a four bolt pattern, and the 3 bolt pattern matches the honda atc 90's