This video explains the 4-minute gearing attachment for the model A and B Standards, and should help you in figuring out if you have all the right parts and how to attach it to your 2-minute only Standard, and what parts you will have left over afterwards.
[youtubehd]http://www.youtube.com/watch?v=9ggxlfT7JBs[/youtubehd]
Standard A & B 4-minute Gearing
- Wes K
- Victor I
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