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| Serial number on the bottom of the bottom bracket |
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| Bottom bracket bearing - Shimano BB-7400 |
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| The small crank ring is 39 tooth (smaller than usual for an older road bike...) |
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| Big crank gear is 52 tooth (53 or 52 seems to be typical) |
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| Shimano "clipless" pedals. These are VERY heavy! My guess is that new ones are half the weight or less... |
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