Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  

Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Thread Tools Search this Thread
Old 03-12-11, 07:42 PM   #1
ducati hyp
Road runner
Thread Starter
Join Date: Dec 2010
Posts: 259
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Flipped stem

Hi, I would like to try riding my Cannondale Synapes(monocoque) full carbon forks with the stem flipped = lower bars. Being a carbon and me not being familiar with it, Is there a procedure that should be followed ??? My concern is if I have to remove the top cap is that in any way going to affect the bearing tension on the head tube ??
ducati hyp is offline   Reply With Quote
Old 03-12-11, 08:04 PM   #2
Senior Member
CACycling's Avatar
Join Date: Feb 2008
Location: Oxnard, CA
Bikes: '08 Fuji Roubaix RC; '07 Schwinn Le Tour GS; '92 Diamond Back Ascent EX
Posts: 4,565
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
You will have to remove the top cap to get the stem off and set preload after flipping the stem. It isn't too difficult but, assuming a carbon steerer, getting the torque on the stem right once getting the preload set is very important.
CACycling is offline   Reply With Quote
Old 03-12-11, 08:11 PM   #3
Senior Member
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 30,328
Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 688 Post(s)
Yes, removing the top cap and stem is likely to change the headset adjustment so you will have to reestablish the correct adjustment when you reassemble everything. However, it's not difficult.

Leave the stem clamp bolts loose and tighten the top bolt until all of the play is gone from the headset. This is easy to determine by locking the front brake and trying to rock the bike forward and back. If there is any play you will feel it. Most current cartridge bearing headsets specify a light preload of 4 - 10 inch-pounds (that's only 0.5 - 1.2 Nm) for the top bolt so that is just snug.

Once you have the proper headset adjustment center the stem and tighten to clamping bolts evenly and to the manufacturer's spec. A stem on a carbon steerer should be torqued properly and using a torque wrench is VERY desirable. Generally the required torque is about 4-5 Nm but check with your dealer or Cannondale for the actual value.

Park Tools' web site has a tutorial for adjusting threadless headsets that would be worth looking at too.
HillRider is offline   Reply With Quote
Old 03-12-11, 08:14 PM   #4
Senior Member
Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Posts: 35,425
Mentioned: 105 Post(s)
Tagged: 1 Thread(s)
Quoted: 3767 Post(s)
+1, you'll definitely lose the headset adjustment. Not because you removed the top cap which doesn't do anything once the stem is tight, but because you removed the stem.

It's a very straightforward job. search Adjusting threadless headsets and you'll find a number of free tutorials. Review a few until you think you have it then go ahead. BTW- the carbon fork doesn't really create issues, but if you have a carbon stem be c=vary careful tightening the clamp bolts, some are very prone to stripping.
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -6. The time now is 01:38 PM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    get answers from real people!
Click to start entering your question.