Mylolylo Posted June 29, 2015 Posted June 29, 2015 So I just bought a very nice seatpost off the hub but on picking it up I noticed one thing...what should have been a 400mm seatpost had been cut to about 270mmm...I have emailed the advertiser regarding this but that's for a different time. my question is roughly how much of a seatpost needs to be inserted in the frame to make it structurally sound?
popcorn_skollie Posted June 29, 2015 Posted June 29, 2015 Most state 80 mm as a warning but I wouldnt go less than 100mm minimum insert length
JXV Posted June 29, 2015 Posted June 29, 2015 Guessing a heavy, aggressive rider should be more conservative in this regard....
Dubber Posted June 29, 2015 Posted June 29, 2015 I work on the rule of inserted down to the height of the top tube. This is generally the strongest part of the seat tube...
Wannabe Posted June 30, 2015 Posted June 30, 2015 I work on the rule of inserted down to the height of the top tube. This is generally the strongest part of the seat tube... Agree. If you can get it lower than that, even better. I.M.O.
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