Light 31.6 seatpost?

Discuss light weight issues concerning mountain bikes & parts.

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nickf
Posts: 608
Joined: Sat Mar 06, 2010 10:34 pm

by nickf

Currently running a Bontrager XXX post, comes in at just over 200g. Any suggestions for a light carbon or alloy post that's durable enough for xc?

by Weenie


spdntrxi
Posts: 1956
Joined: Sat Jul 20, 2013 6:11 pm

by spdntrxi

Darimo.. mine was like 76g or something. It's on my gravel bike right now and I've been offroad a bit. Mostly fireroads and tame singletrack

joeg26er
Posts: 82
Joined: Thu Aug 28, 2008 3:40 am

by joeg26er

Depends on your budget but I always suggest KCNC aluminum
great low weight post at reasonable price $80-90 for 180g 31.6x400mm

Woodman AL posts are also good about $60 for 31.6x350mm at 180g

I have both of those in ALU and can say they are GTG

I have been eyeing the Woodman Carbo EL posts as those are 130ish grams for similar lengths but are around $150

wow - just looked up Darimo and they are $320 USD (279EURO) and weigh 94g in 31.6x400mm

Marin
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Location: Vienna Austria

by Marin

Elita One from Aliexpress, 30$ for 125g.

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nickf
Posts: 608
Joined: Sat Mar 06, 2010 10:34 pm

by nickf

joeg26er wrote:
Tue Oct 23, 2018 7:10 pm
Depends on your budget but I always suggest KCNC aluminum
great low weight post at reasonable price $80-90 for 180g 31.6x400mm

Woodman AL posts are also good about $60 for 31.6x350mm at 180g

I have both of those in ALU and can say they are GTG

I have been eyeing the Woodman Carbo EL posts as those are 130ish grams for similar lengths but are around $150

wow - just looked up Darimo and they are $320 USD (279EURO) and weigh 94g in 31.6x400mm
I contacted Woodman about the CarboEL post and they don't recommend it for MTB use. Not sure I trust the I ended up going with a Hylix Zero Carbon Seatpost 400mm. Claimed at 188g. Better then the Bontrager XXX I weighed today 400mm long and 245g. Still saving 57g.

joeg26er
Posts: 82
Joined: Thu Aug 28, 2008 3:40 am

by joeg26er

Nick - please update us when you get the Hylix zero. What the actual weight is? Also quality and fitment. Seems interesting the Woodman Carbon EL posts are 400mm yet not suggested for MTB? Or perhaps not for your weight range?

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nickf
Posts: 608
Joined: Sat Mar 06, 2010 10:34 pm

by nickf

I'm sure the Woodman would have been fine but rather not risk it. I only race xc but do take the mtb on bigger trails for fun and don't want to think about it if I get rowdy. Below is the response Woodman sent me. I'm around 77kg so well under the weight limit.

"The rider’s maximum weight is 130 kilograms (290 pounds). 

WOODman Carbo EL seat posts are designed for road or light XCountry usage. If your riding involves with jumping, we do not recommend this seat post. Jumping may damage the structure of the extra-light seat post and makes it dangerous to ride. If you need a stronger version, we suggest you use our Carbo GT/Carbo GT Ti series seatposts. They are a little heavier but stronger than EL and they all look the same. "

Slammed
Posts: 57
Joined: Sun Feb 01, 2015 12:32 am

by Slammed

I use a KCNC alloy post that's almost at the minimum insertion length on my xc bike without issues. Bought it for $30 off PB also.

joeg26er
Posts: 82
Joined: Thu Aug 28, 2008 3:40 am

by joeg26er

You got kcnc from pb What is PB?

Slammed
Posts: 57
Joined: Sun Feb 01, 2015 12:32 am

by Slammed

joeg26er wrote:
Fri Nov 09, 2018 4:26 am
You got kcnc from pb What is PB?
PinkBike classifieds. PinkBike is the world's biggest mtb website and they have a huge buy/sell page.

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onemanpeloton
Posts: 94
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Location: Edinburgh, UK

by onemanpeloton

27.2mm post with a shim?
2017 Giant TCR Disc
2015 Giant TCX
2016 Cube Stereo 140

by Weenie


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