Join Date: Jun 2010
Location: Lubbock, TX
Bikes: Masi Vincere (2011); Diamondback Interval (1993); Miyata SSCX build (c. 1990)
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Left crank grommet pops out of hole
Is this grommet solely a dust seal? It should fit in the ring slot around the crank arm and within the bottom bracket.
I tried pushing it back into place, but it just pops/slides loose again--without the cranks spinning. If they spin, it comes right out.
How urgently do I need to pull the crank arm to address this? Rather, what is causing it?