Carbon v alu seatpost?

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on-yer-bike
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Carbon v alu seatpost?

Postby on-yer-bike » Thu Jan 03, 2013 09:48 am

I need a 29.4 mm dia seatpost and the only one now available apart from WR (who never answer my emails and are possibly suspect quality) is a Thomson Elite, 0 setback. Its to go in a steel frame and Im wondering how it would effect the ride quality, if at all? Also, is it stupid to put an alu post in a steel frame with the inherent corrosion issues?
Pegoretti
Colnago
Campagnolo

rich164h
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Joined: Sun Feb 07, 2010 20:10 pm

Re: Carbon v alu seatpost?

Postby rich164h » Thu Jan 03, 2013 12:52 pm


on-yer-bike
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Joined: Fri Jan 30, 2009 11:12 am

Re: Carbon v alu seatpost?

Postby on-yer-bike » Thu Jan 03, 2013 14:51 pm


Thanks, I saw that but the set back at 35 mm is way too much. Shame
Pegoretti
Colnago
Campagnolo

keef66
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Re: Carbon v alu seatpost?

Postby keef66 » Thu Jan 03, 2013 15:36 pm

Alu post in a steel frame will be fine if you grease it first then remove / wipe / regrease every 6 months or so.

I had that combo on my mtb for 12 years without a problem. After it was nicked, the frame appeared on ebay without the seatpost!

rich164h
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Joined: Sun Feb 07, 2010 20:10 pm

Re: Carbon v alu seatpost?

Postby rich164h » Thu Jan 03, 2013 15:37 pm


Strith
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Re: Carbon v alu seatpost?

Postby Strith » Thu Jan 03, 2013 15:44 pm

Alu seatpost in steel frame is the way it's been done for donkeys years, just grease it good and if you're leaving the bike out in the weather constantly give it a turn every now and again.

I've always found my carbon seatposts to be one of a few good ways to make a bike a little more comfy.

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Bobbinogs
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Re: Carbon v alu seatpost?

Postby Bobbinogs » Thu Jan 03, 2013 19:00 pm

My Mercian Strada (in 653) came with an alu seatpost, all very nice until I took it out to wipe and regrease one day and found that my late father in law (who previously owned the bike) had cut the post right down so that it was minimal for him...and I am a few inches taller so there was only about an inch sticking in! I must have done about 3,000 miles on that last year and hadn't bothered to check when adjusting to fit me :)

Anyway, to cut a long story short, the bike was built in '97 so would have had an alu post all that time without any problem. I changed the post recently to carbon (funnily enough, an FSA K-light mainly because I needed the extra setback due to my larger frame). Works well and is supposed to reduce road buzz but I haven't ridden it long enough yet to work that out definitively. I am a big fan of the S-Works carbon post which really is comfortable (I have one on my Spesh Allez Elite 2008) but the setback was not enough and the saddle fixing system doesn't work with the Mercian's San Marco saddle.

The thing to bear in mind though is that I am still not convinced about the look of a lovely steel frame with alu quill stems, etc., and a carbon post. Just irks me a little :roll:

on-yer-bike
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Joined: Fri Jan 30, 2009 11:12 am

Re: Carbon v alu seatpost?

Postby on-yer-bike » Tue Jan 08, 2013 12:57 pm


Thanks. need a bit of set back, otherwise the saddle is pushed back beyond the limits
Pegoretti
Colnago
Campagnolo


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