3t stem question
01-08-15 | 10:54 AM
#1
Thread Starter
Senior Member
Joined: Sep 2008
Posts: 8,846
Likes: 2,897
From: Elwood Indiana
Bikes: they change so much I'm tired of updating this
3t stem question
I just picked up a black 3t quill stem with an Olympic badge screwed on to the front. What the story with this? I have never seen one before. Thanks
__________________
Semper fi
Semper fi
01-08-15 | 06:32 PM
#3
Thread Starter
Senior Member
Joined: Sep 2008
Posts: 8,846
Likes: 2,897
From: Elwood Indiana
Bikes: they change so much I'm tired of updating this
Actually a 2 piece stem, the bottom of the front face comes off for easy installation for the bars..
__________________
Semper fi
Semper fi
01-08-15 | 10:44 PM
#5
weapons-grade bolognium
Joined: Dec 2008
Posts: 6,609
Likes: 3,309
From: Across the street from Chicago
Bikes: Battaglin Cromor, Ciocc Designer 84, Schwinn Superior 1981
No addtional info, but it was definitely a production piece
Bars, Posts, Seats and Cranks | Randal Putnam Loves to Pedal
Bars, Posts, Seats and Cranks | Randal Putnam Loves to Pedal
01-09-15 | 12:18 AM
#6
Senior Member
Joined: Aug 2009
Posts: 7,717
Likes: 4,122
From: Berkeley, CA
Bikes: 72 Cilo Pacer, 72 Gitane GT, 72 Peugeot PX10, 73 Speedwell Ti,l, 75 Peugeot PR-10L, 80 Colnago Super, 81 Zinn, 85 ALAN Cross, 85 De Rosa Pro, 86 Look 753, 86 Look KG86, 89 Parkpre Team, 90 Parkpre Team MTB, 90 Merlin
^I don't like the look of that cross-section. Sloar, does yours have the same cross-section at the front of the clamp area behind the badge as shown in the link above, and copied below for reference? Nice looking stem (3ttt podium model with a commemorative badge?), but it seems like those channels would dramatically increase the chance of failure--for what, a couple grams at most? (Armchair engineer speaking here.)
01-09-15 | 06:41 AM
#7
Thread Starter
Senior Member
Joined: Sep 2008
Posts: 8,846
Likes: 2,897
From: Elwood Indiana
Bikes: they change so much I'm tired of updating this
Yeah it's the same, I wasn't sure if the commemorative badge had any kind of significance. It's a weird design but I really don't see any flaws in it. Tightened up pretty good and seems solid. Looks at home on my "funny bike".
__________________
Semper fi
Semper fi
01-09-15 | 08:32 AM
#8
Senior Member
Joined: Jul 2009
Posts: 11,128
Likes: 39
Bikes: 1986 Alan Record Carbonio, 1985 Vitus Plus Carbone 7, 1984 Peugeot PSV, 1972 Line Seeker, 1986(est.) Medici Aerodynamic (Project), 1985(est.) Peugeot PY10FC
Don't remember the details, but I've seen the same kind of stem, with the same logo before, being sold at eBay...... for quite a bit of money.
It is and unusual three piece design, The very thin section of aluminum that bar gripping insert goes into at the top and bottom half of the front of the stem does look a bit scary, especially with the grooves having very sharp angles machined into them. Most other clam shell type stem manufacturers use an actual hinge at this point.
Mavic made a similar design stem, but with only two pieces, similarly connected at the front of the bar clamp with a tight tolerance half dovetail-like joint.
Here it is called out as the Mavic 370 stem in Velobase:
VeloBase.com - Component: Mavic 370
I have one on my Peugeot PSV presently, and I had questioned myself for using it for similar reasons, but so far it seems to be doing fine after two years of riding with it on my bike.......
It is and unusual three piece design, The very thin section of aluminum that bar gripping insert goes into at the top and bottom half of the front of the stem does look a bit scary, especially with the grooves having very sharp angles machined into them. Most other clam shell type stem manufacturers use an actual hinge at this point.
Mavic made a similar design stem, but with only two pieces, similarly connected at the front of the bar clamp with a tight tolerance half dovetail-like joint.
Here it is called out as the Mavic 370 stem in Velobase:
VeloBase.com - Component: Mavic 370
I have one on my Peugeot PSV presently, and I had questioned myself for using it for similar reasons, but so far it seems to be doing fine after two years of riding with it on my bike.......
Last edited by Chombi; 01-09-15 at 09:01 AM.
