SR Laprade minimum insertion length?!
06-21-22, 08:37 PM
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SR Laprade minimum insertion length?!
So I got this Allegro club tour, because my Atala got stolen RIP 
, however I don't see any minimum insertion mark, what should I do, I like to ride the saddle high, pictures of the seat post is in the Allegro album
, however I don't see any minimum insertion mark, what should I do, I like to ride the saddle high, pictures of the seat post is in the Allegro album
06-21-22, 10:55 PM
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I just looked at two of mine. Minimum insertion is about 2.5"/65mm
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06-21-22, 11:06 PM
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Main thing is to get the post past the entire top tube by an inch or so.
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06-23-22, 01:10 AM
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so what happens if it doesn't meet the requirement height, is it really dangerous? I also have the same question for the quail stem, thanks
06-23-22, 01:47 AM
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Simple: the long time rule of thumb for seatpost and stem minimum insertion is 75mm-80mm or approximately 3". Been that way for the 50 years I've been involved with lightweight bikes.
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06-23-22, 06:07 AM
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I measured several seat-posts from my stash; everyone was 2.5 for road, 3-3.5 for Mtb.
Stem is a complete no go. You have a few issues with that...the amount of force applied in 20 different directions will probably not result in anything good if you exceed the marks by more than a few mms.
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1987 Crest Cannondale, 1987 Basso Gap, 1992 Rossin Performance EL, 1990ish Van Tuyl, 1985 Trek 670, 1982 AD SLE, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Competition, 1987 Nishiki Tri-A, 1981 Faggin, 1996 Cannondale M500, 1984 Mercian, 1982 AD SuperLeicht, 1985 Massi (model unknown), 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super
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06-23-22, 06:43 AM
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The stem is even more dangerous to go to shallow on. Failure there is a great way to loose your teeth. Longer stems and seat posts are available. Kalloy makes very long seatposts in many sizes as well as stems.
