It cannot be a road crank it has no place for a second chainring. It was used for training in a velodrome o Basque Country.
Yeah so it was converted/ filed down?
That's doesn't look like a Gran Sport chainring. It doesn't match up flush between spider and the chainring.
Did they make Gran Sport Pista cranks?
@pagasarri started
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It cannot be a road crank it has no place for a second chainring. It was used for training in a velodrome o Basque Country.