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Old 10-21-13, 01:22 PM
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Ok. Look at the construction of those units and see if there is any significant difference that would make the 105 stronger. I would be surprised if there is. The inner plate would be stressed on and break on upshifts I would think. Because it is unusual for a front unit to separate like that I think you need to look at other possibilities. What is the chain wheel range.
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