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3TTT Zep Stem Torque Setting(7 posts)

3TTT Zep Stem Torque Settingspc15
Mar 19, 2003 10:01 AM
Any body have a recommendation for the correct torque settings for the stem front plate. I have a standard Zepp Stem with Prima 199 bars.

Thanks in advance

SPC
re: 3TTT Zep Stem Torque Setting12x23
Mar 19, 2003 10:51 AM
3ttt says 9-10 nM or 80-85 in lbs. I torqued mine to about 75 in lbs and the bars haven't slipped. Install the bar without greasing and it won't slip or creak.
Thanks!(nm)spc15
Mar 19, 2003 11:10 AM
Warning for 3T Zepp stem users.rogue_CT1
Mar 19, 2003 4:44 PM
Replace those titanium screws immediately! They have been recalled because they break without warning. Mine broke causing me to crash.

I found the recall at www.cpsc.gov. You can contact 3T at zeppxlrecall@gruppospa.com.

Even though you have the 26.0 mm stem they will still replace the Ti screw with steel ones.
Here's the info....SS_MB-7
Mar 20, 2003 10:16 AM
Cannondale Corp. Announce Recall of Bicycles With Defective Stems

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CPSC, Cannondale Corp. Announce Recall of Bicycles With Defective Stems
WASHINGTON, D.C. - In cooperation with the U.S. Consumer Product Safety Commission (CPSC), Cannondale Corp., of Bethel, Conn., is voluntarily recalling about 1,300 bicycles with defective stems. The stem can break away from the bicycle, causing a loss of control, falls and serious injury to riders.

Cannondale has received four reports of stems breaking, including one minor injury.

The recalled stems are black and have the model name - 3T ZEPP XL printed in white on the sides of the body of the stem. The faceplate also has "3T" printed in white at the front of the stem. The stems were installed on 2002 and 2003 model year Cannondale bicycles. The recalled stems were manufactured in Italy by 3T (Tecno Tubo Torino) and distributed by parent company, Gruppo, SPA.

Authorized Cannondale Bicycle dealers nationwide sold the stems from March 2001 through July 2002 for between $3,400 and $5,000 (includes the cost of the bicycle).

Consumers should stop riding bicycles with these stems immediately and contact a local Cannondale retailer for a free repair. Consumers can contact Cannondale at (800) BIKEUSA or visit the company's website at www.cannondale.com to find a local dealer.



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Now, I have a 6 month old 3T Zepp stem with 3T Prima 199 bar. The stem is the non-XL version and was purchased as an aftermarket purchase. Would it still be covered under the recall?

Ride Hard,
Mike B.
Here's more info....12x23
Mar 20, 2003 2:49 PM
I called the importer at 1-800-515-8176. I was told the recall is for the XL only. The problem is not with the ti fasteners. The problem with these stems is the bolt holes in the faceplate aren't milled deep enough. The result is the ti bolts do not get deep enough into the stem ... too few threads to hold the bolt. Most of the stems failed at about 40 in lbs during installation because there were too few threads (in the stem) receiving the bolt, and the bolt would pull those threads out.

Cannondale was one of the first to bring this to their attention, although there were a few stems sold to consumers.

The rep told me not to worry with the four 25.8 stems I have. He stated I should always use a torque wrench during installation. I told him I did and brought my stems up to less than 9 Nm (~70-75 in lbs, actually) and he said that was fine, just do not exceed 9 Nm.

I told the rep I had one stem with one ti bolt that I buggered the head up a bit by carelessly not having the hex bit in deep enough during installation. I didn't completely round it, but expressed I had concerns about removing it and reinstalling it. He asked my address and volunteered to mail me a steel bolt for replacement because he didn't have any ti bolts ... not because the ti bolts are less reliable.
Here's more info....again12x23
Mar 20, 2003 2:57 PM
Duh, I meant 10 Nm is the max. This is also printed on the stem on the drive side steerer clamp along with stem length (I think ... better go check that, too).