Steel Frame / Carbon Seatpost

broachboy

Afternoon forum goers

I have treated my Columbus EL Daccordi to a carbon seatpost, but before I fit it is there anything I need to know ...? :oops:

Can anyone recommend a grease to use with nivacrom and carbon & do I have to reduce the tightening torques for the binder bolt ?

Many TIA

DavidBelcher

broachboy wrote:

Afternoon forum goers

I have treated my Columbus EL Daccordi to a carbon seatpost, but before I fit it is there anything I need to know ...? :oops:

Can anyone recommend a grease to use with nivacrom and carbon & do I have to reduce the tightening torques for the binder bolt ?

Many TIA

Never yet tried it myself, but the popular trick to avoid a stuck carbon seatpost seems to be a liberal dose of hairspray. Alternatively you can go for the pricier option of Tacx carbon assembly grease.

David

Monty Dog

Use a carbon assembly compound like Tacx, rather than a grease - it works as an anti-seize but has abrasive beads to offer more grip - so you don't need to give the bolt as much welly. Try not to give too much torque - 5-8Nm should be fine which is barely a tweak of the wrist. Ironically, carbon and steel isn't such a problem with corrosion as with aluminium.

gundersen

I have and still do use ordinary teflon bike grease. Never had any problems with that. Been using carbon/steel the last 7 or 8 years.

Tighten the bolt like any other bolt - till its tight. Never broken a carbon seat post - but have crushed a Reynolds carbon fork (don't buy them)

broachboy

Afternoon, Thanks for the replies guys

I fitted the seatpost (FSA Carbon) this morning, and used some Pace RC005 Carbon Composite Shield, which I imagine is similar to the Tacx grease that was mentioned, but I couldn't find any locally.



...its quite bizzare stuff really, you can actually feel the plastic grippy balls in it, and while providing lubrication, the seatpost wouldn't move while unclamped unless I forced it.

broachboy

BTW...

The ride I get from this Columbus frame is super comfortable, I have a Deda carbon fork fitted to replace the chromed steel original. Do any of you think that I will notice even more vibration loss equaling more comfort after fitting the carbon seatpost ? :?

Pirahna

gundersen wrote:

Tighten the bolt like any other bolt - till its tight. Never broken a carbon seat post - but have crushed a Reynolds carbon fork (don't buy them)

That's why things have a recommended torque setting. I've not crushed my Reynolds fork but then I use a torque wrench.

Monty Dog

Quote: Tighten the bolt like any other bolt - till its tight. Never broken a carbon seat post - but have crushed a Reynolds carbon fork (don't buy them)

Comes from the same old school that recommends tightening bolts until they 'crack' and then back them off a quarter-turn! Just need to make a mental note to never let you near anything vaguely technical, never mind a bicycle!

gundersen

Well Monty Dog you certainly have a good imagination.

I said tighten them till they are tight.
I didn't say over tighten them

And yes I have been a mechanic in a lbs for years. At the moment in a car workshop. A lot of people have strange conceptions about carbon. It is actually a lot stronger than most think. Took a broken Trek carbon frame once and smashed it to pieces to see how much it could take. Put it this way - I wouldn't do the same to a steel frame.

And yes I do own a torque wrench.

About the reynolds ouzo pro fork - I thought it was garbage before it broke , so it didn't bother me when I cracked it.
Give me a Mizuno fork any day.

broachboy

gundersen wrote:

About the reynolds ouzo pro fork - I thought it was garbage before it broke , so it didn't bother me when I cracked it.
Give me a Mizuno fork any day.

:roll:

Shame about that, I quite fancied a 1" Reynolds carbon fork for me Daccordi to replace the Deda

caw35slr

broachboy wrote:

The ride I get from this Columbus frame is super comfortable, I have a Deda carbon fork fitted to replace the chromed steel original.

Photo?

gundersen

Shame about that, I quite fancied a 1" Reynolds carbon fork for me Daccordi to replace the Deda

an italian frame should have an italian fork - columbus, itm, deda, mizuno, sintema are the best known

broachboy

caw35slr wrote:

broachboy wrote:

The ride I get from this Columbus frame is super comfortable, I have a Deda carbon fork fitted to replace the chromed steel original.

Photo?

My pleasure......

http://velospace.org/node/11997



Hope you like it :?: Let me know

broachboy

gundersen wrote:

Shame about that, I quite fancied a 1" Reynolds carbon fork for me Daccordi to replace the Deda

an italian frame should have an italian fork - columbus, itm, deda, mizuno, sintema are the best known

Hi gundersen

:oops: I know what you mean as regards the Italian frame / fork combo, its just the 1" full carbon fork choice isn't too great anymore I would dearly love something like a 1" Columbus muscle fork 8)