I've put about 300 miles on the new seatpost, after FINALLY ditching that nasty ass (but superlight) U.S.E. Alien Carbon post. (look for it on eBay soon).
I had ridden exclusively on that Alien for 3 seasons and for many 100 mile bike rides training for Ironmans. Saddle replacement dictated adjustments of the seatpost mechanism and that Alien was, well, you guys know the story.
I was concerned about the ride characteristics of a metal seatpost after riding on carbon for years (I have a Tetra Custom frame as well), but I can report to you that I can't tell a damned bit of difference.
The Masterpiece is supposedly about 15 grams heaver than the alien but you're hard pressed to hold them in your hands with your eyes closed and tell which is which, they're that close. The seat clamp mechanism works flawlessly, allowing the smallest seat adjustments easily and repeatedly.
It fit fine in the seat tube, it clamped tight with no slippage at all (the alien did slip at first), and I finally have that sweet spot in my SLR saddle again. My balls are grateful.
But most importantly, I can't tell which seatpost is underneath me, no difference at all as far as I can tell.
HOWEVER, its still not as cool as the carbon weave seatpost.
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