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Old 06-28-2021, 07:52 AM
Trek 600 Trek 600 is offline
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Join Date: May 2021
Posts: 4
Saddle index mark-industry standard?

I noticed a couple of the newer saddles I've purchased have index marks stenciled on the rails, different brands (Ergon and Specialized in my case) using the same millimeter graduated stencil.
Do these marking refer to a common feature on saddles, such that if I clamp different brands at say the 21mm mark on the same bike/seatpost on both saddles the intended sweet spot for sit bones will be in same place?
Or, is it the case that markings are reference for that particular saddle make and model only so one can get it back on the bike in a repeatable manner?

Thanks
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