Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
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Originally Posted by jamesdak
The problem is that this is a seat mast/cap setup. Does not take a standard seat post. The saddle mounts to the mast caps which fits over the mast. Don't think filing away part of a carbon fiber piece would be very safe.
Yes, carbon isn't as user friendly as metal. You have to look at the construction and decide. You're removing very little, only the inside lip top and bottom, so if the supports cover a decent length of rail, you'll be OK. It also depends on how the carbon is wrapped, or whether it's a carbon reinforced molded piece.
In any case the most you can gain by this method is probably 1/4" or so. Otherwise you have very few options because they probably don't make a different mast with more setback, or a setback mast head.
Last resort, see a good fitter and review your total fit and position. Possibly a different saddle and/or change in the length of the stem might be the ticket.
I'm not a total retro grouch, but I really hate that so many high end modern bikes have so little latitude for user fit adjustments. It's really bad when you have to scrap a frame to push the saddle back a bit.
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