HOT: Active* forum members generally gain 5% discount at starbike.com store!
Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Articles FAQ Contact About




Post new topic Reply to topic  [ 9 posts ] 
Author Message
PostPosted: Thu Mar 13, 2014 10:15 pm 
Offline

Joined: Mon Jul 13, 2009 9:19 pm
Posts: 267
Location: Denmark
Last year I bought some alpha 340 road rims with tune hubs, cx ray, 24/28 two layers of B.O.R rim tape and som ultremo zx tires. I weighed 59 kg when using the wheels and have never ridden aero wheels but this setup feels wind sensitive.
When there is a lot of wind or riding + 35 km/h or drafting it seems harder to turn the wheels, it is like I'm stuck on a rail and I can't get of it, (a bit of exaggeration) is this what it feels like to ride tall rims?

At first when I tried them I thought it was the tires that were rolling from side to side and I was afraid the tires were going to pop off, first I mounted some ultremo dd as training tires but the blew off the rim an hour later while just standing against the wall in my apartment so that was why I was a little concerned riding them.

Any opinions about wind sensitivity is much appreciated cheers


Top
 Profile  
 
Posted: Thu Mar 13, 2014 10:15 pm 


Top
  
 
PostPosted: Thu Mar 13, 2014 10:32 pm 
Offline

Joined: Wed Jun 01, 2011 7:53 am
Posts: 263
I ride those rims as trainers in New England on the water (= very windy). I don't notice any wind issues with crosswinds. In fact, it's a treat to switch to the Stans from any of my deep section rims (zipp 404, Reynolds 66) and notice the crosswind effect go away. Maybe it is being in the draft alone that is making you feel stuck on a rail? Do you notice it riding alone?

Also, are your current tires tubeless ready? If so, they lock in and you can pretty much forget any worries of rolling off a tire.


Last edited by tinozee on Fri Mar 14, 2014 12:07 am, edited 1 time in total.

Top
 Profile  
 
PostPosted: Thu Mar 13, 2014 11:40 pm 
Offline

Joined: Fri Jan 27, 2006 1:38 pm
Posts: 565
Location: Greater Pittsburgh
Not in the least sensitive! Had these rims buildup with Alechemy hubs and CX-Ray spokes, never had any issue with wind

_________________
"Suddenly the thought struck me; my floor is someone elses ceiling" - Nils Ferlin


Top
 Profile  
 
PostPosted: Thu Mar 13, 2014 11:57 pm 
Offline

Joined: Mon Apr 23, 2012 10:21 pm
Posts: 165
Location: London, UK
340s are ~23mm deep no? I had some 20/24 built up with a Powertap G3. No issues with the wind at all, I weighed in at 63kg back then.


Top
 Profile  
 
PostPosted: Fri Mar 14, 2014 1:17 am 
Offline

Joined: Sun May 16, 2010 7:28 pm
Posts: 584
Nope.


Top
 Profile  
 
PostPosted: Fri Mar 14, 2014 1:49 am 
Offline
Shop Owner
User avatar

Joined: Tue Mar 10, 2009 5:27 am
Posts: 1244
Location: McCall, ID
Those rims are too shallow to be unpredictable. I think it's just the nature of riding a lighter wheelset, particularly with such a light rim. They simply feel more twitchy than a heavier, deeper counterpart which may make them seem as if they're wind sensitive.

_________________
http://www.zencyclery.com


Top
 Profile  
 
PostPosted: Fri Mar 14, 2014 12:26 pm 
Offline

Joined: Mon Jul 13, 2009 9:19 pm
Posts: 267
Location: Denmark
Thanks for the replies!

@tinozee tires are clinchers, I get this feeling alone also particularly in headwind wind about +15 meters pr second (54 kmh)

@Zen Cyclery maybe you are right.


Top
 Profile  
 
PostPosted: Fri Mar 14, 2014 1:27 pm 
Offline

Joined: Sat Jul 17, 2010 11:36 am
Posts: 170
Hi,

The Alphas are nothing like riding a deep (traditional x-section) aero wheel. In crosswinds, those tend to yank erratically like a dog on a leash rather than railing a single line. If you're considering this type of rim, definitely demo a set on a windy day before you buy, because the Alphas that give you pause are absolutely docile compared to a 45-60mm+ aero rim.

I've had issues with first-generation A340s, but crosswind performance wasn't one of them.

-Tim


Top
 Profile  
 
Posted: Fri Mar 14, 2014 1:27 pm 


Top
  
 
PostPosted: Fri Mar 14, 2014 10:09 pm 
Offline

Joined: Mon Jul 13, 2009 9:19 pm
Posts: 267
Location: Denmark
It's not that they feel like a crazy dog on a leash, quite the opposite, If you have tried riding a bike with a headset that has been tighten to much that is what it feels like. Now I know it is not the same as riding tall rims. I have no problems in crosswinds only in headwind or drafting, the higher the speed the worse it feels


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 9 posts ] 


Who is online

Users browsing this forum: Baidu [Spider], cl9k24la, jbf, micky, mpulsiv, PoorCyclist, Sleepless and 82 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Helmet Wind Noise?

[ Go to page: 1, 2 ]

in Road

SolidSnake03

24

1447

Fri Jul 18, 2014 6:18 am

PuroScattista View the latest post

There are no new unread posts for this topic. AX-Lightness Alpha weight limits ??

in Road

roadiesean

3

535

Sun Mar 09, 2014 8:59 pm

xsport View the latest post

There are no new unread posts for this topic. Moving a previously installed Alpha Q fork insert

in Road

FastforaSlowGuy

1

270

Fri Oct 11, 2013 4:03 am

goodboyr View the latest post


It is currently Thu Jul 24, 2014 9:09 pm

All times are UTC + 1 hour




Advertising   –  FAQ   –  Contact   –  Convert   –  About

© Weight Weenies 2000-2013
hosted by starbike.com


How to get rid of these ads? Just register!


Powered by phpBB