Mountain Bike Reviews Forum banner
1 - 20 of 28 Posts

·
post-ride specialist
Joined
·
4,005 Posts
Discussion Starter · #1 ·
How much extra for a 30.9 mm seat tube?

How long before they come standard in the line?
 

·
Ultra Ventanaphile
Joined
·
3,346 Posts
icegeek said:
How much extra for a 30.9 mm seat tube?

How long before they come standard in the line?
Can I ask why? Why the 30.9? For compatibility with more Seat Dropper Posts?
Just want to make sure that's why you are inquiring, or if not why you want to go to 30.9.
 

·
post-ride specialist
Joined
·
4,005 Posts
Discussion Starter · #6 ·
Adjustable seat posts, yes. Full suspension, of course.

27.2 seat posts have gone the way of 1" steer tubes. Soon, shopping for one will mean going to ebay and including "retro" in your search terms.
 

·
Registered
Top Fuel
Joined
·
1,639 Posts
I've observed you don't have to crank down so hard on the seat clamp for the larger post diameters. Not exactly sure why, but seems to be the case.
 

·
Team Fearless Descender
Joined
·
1,976 Posts
steadite said:
...you don't have to crank down so hard on the seat clamp for the larger post diameters. Not exactly sure why...
More surface area?

Yes, I'd like to see a larger diameter too.
 

·
Ultra Ventanaphile
Joined
·
3,346 Posts
icegeek said:
Adjustable seat posts, yes. Full suspension, of course.

27.2 seat posts have gone the way of 1" steer tubes. Soon, shopping for one will mean going to ebay and including "retro" in your search terms.
Makes sense.
While I disagree about ebay and retro, I do understand the limitation of just a GD can be frustrating. Speaking of which, anybody want to sell me a GD cheap? I'm going to Mammoth in 35 days :yikes: and I can totally see the benefit of one there!:cool:

I asked because I know alot of companies tout that the larger seatpost diameter is stiffer, and yes that's true but I wanted to make sure folks remembered that Sherwood uses a flared tube design that uses the larger diameter tube already on the FS bikes.
And certain custom hardtails...:D
 

·
Registered
Joined
·
4,448 Posts
Out of the group of guys I ride with, the only posts that aren't pices of sh!t, are the Gravity Droppers...And what do you know, they come in 27.2.
 

·
Team Fearless Descender
Joined
·
1,976 Posts
Ciclistagonzo said:
...anybody want to sell me a GD cheap? I'm going to Mammoth in 35 days :yikes: and I can totally see the benefit of one there!:cool:
Hey, my "extra" (from last year) is on Lori's Knolly... And... just today I got, in the mail, a replacement inner post to up mine to 4" drop. Yea, I'm ProCore that way! :D
 

·
post-ride specialist
Joined
·
4,005 Posts
Discussion Starter · #13 · (Edited)
Ciclistagonzo said:
Makes sense.
While I disagree about ebay and retro...
No, it's not at all about armchair-enginerd wanking on frame stiffness, just following the market. 27.2 is becoming uncommon for road bikes even. It's all about options. I don't want to buy another frame that limits me to either a 1-1/8" steer tube or a 27.2 seat post. New product development in adjustable seat posts, just as in forks, will not cater to the old-fashioned dimensions. Just is.
 

·
Proud lame eBiker
Joined
·
2,680 Posts
OldHouseMan said:
Out of the group of guys I ride with, the only posts that aren't pices of sh!t, are the Gravity Droppers...And what do you know, they come in 27.2.
But with no layback/setback option my Bruja is collecting dust because of it.

Oversized posts and curvy links would freshen up the line. If anyone were to care for my $0.02 worth.
 

·
post-ride specialist
Joined
·
4,005 Posts
Discussion Starter · #15 · (Edited)
Curvy links if inward, shortening the upper shock bolt, would turn my crank. You know, function.

Curvy in side view, i.e. for cosmetics... meh. Save that for the Santa Cruzes & Crank Bros of the industry.
 

·
The Bubble Wrap Hysteria
Joined
·
3,795 Posts
icegeek said:
Curvy links if inward, shortening the upper shock bolt, would turn my crank. Curvy in side view, i.e. for cosmetics... meh.
I started to design a set of rockers that curved inward to reduce the upper shock span.......but got busy doing other things. The material cost would just about double for the rockers not including the extra machining time and tool wear....but it would like cool. I'm still waiting for a DWv El Ciclon :thumbsup: maybe 2011
 

·
post-ride specialist
Joined
·
4,005 Posts
Discussion Starter · #19 ·
That would be called a "5-Spot". Next forum up.
 

·
Registered
Joined
·
174 Posts
except the spots are flexy(er). i too swoon for a mini link ventana...

i hate to be that guy, but finally rode a dw spot and really enjoyed the climbing, just not the cornering.
 
1 - 20 of 28 Posts
Top