AToC Tech, Stage 8: The crank arms join in the center of the bottom bracket spindle using a Hirth joint.
- By VeloNews.com
- Published Feb. 23, 2009
AToC Tech, Stage 8: The crank arms join in the center of the bottom bracket spindle using a Hirth joint.
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AToC Tech, Stage 8: The crank arms join in the center of the bottom bracket spindle using a Hirth joint.
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