When I see that on a saddle I just let it go. Can't imagine anything holding that vinyl back where it ought to be.
Maybe I'm wrong. We'll see soon enough.
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A race bike in any era is a highly personal choice that at its "best" balances the requirements of fit, weight, handling, durability and cost tempered by the willingness to toss it and oneself down the pavement at considerable speed. ~Bandera