Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Radial, heads in or out?

Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Radial, heads in or out?

Old 02-20-08, 05:25 PM
  #1  
Senior Member
Thread Starter
 
DDYTDY's Avatar
 
Join Date: Nov 2006
Location: Methuen, Massachusetts
Posts: 520
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 2 Times in 1 Post
Radial, heads in or out?

I've got the American Classic Micro, the GEL280 rim and the spokes for a dedicated, radially laced, hillclimb wheel.

Heads in or out? Aesthetics aside, which for a more functional wheel?
DDYTDY is offline  
Old 02-20-08, 05:31 PM
  #2  
Jonnys ilegitimate Father
 
cavernmech's Avatar
 
Join Date: Apr 2005
Location: toronto
Posts: 2,994

Bikes: too many too list

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Heads out puts less stress on the flanges. Heads in makes it a little more laterally stiff. If the hub is approved for radial use then I would say heads in.
cavernmech is offline  
Old 02-20-08, 05:36 PM
  #3  
Senior Member
Thread Starter
 
DDYTDY's Avatar
 
Join Date: Nov 2006
Location: Methuen, Massachusetts
Posts: 520
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 2 Times in 1 Post
Originally Posted by cavernmech
Heads out puts less stress on the flanges. Heads in makes it a little more laterally stiff. If the hub is approved for radial use then I would say heads in.
Thank you, Thats what I'm after. Laterally stiff=Better for climbing.

The hub has thick flanges.

https://www.amclassic.com/micro_58.html

Regards,
Ray
DDYTDY is offline  
Old 02-20-08, 06:17 PM
  #4  
Over the hill
 
urbanknight's Avatar
 
Join Date: Mar 2006
Location: Los Angeles, CA
Posts: 24,340

Bikes: Giant Defy, Giant Revolt

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 987 Post(s)
Liked 1,186 Times in 681 Posts
Heads out is also a little more aero, but all of those factors (stiffness, flange support, and aerodynamics) have minor effects. I prefer heads out for aesthetics and aerodynamics and haven't had any problems, but it's really personal for most people.
urbanknight is offline  
Old 02-20-08, 06:41 PM
  #5  
Cat 6
 
Ex Pres's Avatar
 
Join Date: Dec 2007
Location: Mountain Brook, AL
Posts: 7,519
Mentioned: 27 Post(s)
Tagged: 0 Thread(s)
Quoted: 500 Post(s)
Liked 183 Times in 118 Posts
FWIW, I built one radial wheel (28s) alternating heads in/heads out. To tell you the truth I can't think of a reason to do it again, but there was nothing wrong with it.
__________________
72 Frejus (for sale), Holdsworth Record (for sale), special CNC & Gitane Interclub / 74 Italvega NR (for sale) / c80 French / 82 Raleigh Intl MkII f&f (for sale)/ 83 Trek 620 (for sale)/ 84 Bruce Gordon Chinook (for sale)/ 85 Ron Cooper / 87 Centurion IM MV (for sale) / 03 Casati Dardo / 08 BF IRO / 09 Dogma FPX / 09 Giant TCX0 / 10 Vassago Fisticuff








Ex Pres is offline  
Old 02-20-08, 06:45 PM
  #6  
Senior Member
 
lowbike's Avatar
 
Join Date: Feb 2007
Location: Chicago
Posts: 122

Bikes: Recumbent

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
HEADS OUT,it's better
lowbike is offline  
Old 02-20-08, 07:42 PM
  #7  
Senior Member
Thread Starter
 
DDYTDY's Avatar
 
Join Date: Nov 2006
Location: Methuen, Massachusetts
Posts: 520
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 2 Times in 1 Post
The wheel probably wont go much over 7 mph. It really is a dedicated hill climb wheel for just one hill that they won''t let us ride down.

I'm registered for both Mt Washington hill climbs this year.
DDYTDY is offline  
Old 02-20-08, 07:51 PM
  #8  
Senior Member
 
Join Date: Dec 2005
Posts: 114
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
both wheels are dished on my lowracer. all 34 spoke heads are on the left sides of the 4 hub flanges.
dogsridewith is offline  
Old 02-20-08, 10:37 PM
  #9  
Over the hill
 
urbanknight's Avatar
 
Join Date: Mar 2006
Location: Los Angeles, CA
Posts: 24,340

Bikes: Giant Defy, Giant Revolt

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 987 Post(s)
Liked 1,186 Times in 681 Posts
Originally Posted by Bob Barker
FWIW, I built one radial wheel (28s) alternating heads in/heads out. To tell you the truth I can't think of a reason to do it again, but there was nothing wrong with it.
I imagine that would be less aero since you're increasing the overall frontal area. I see no other problem, but no benefit to make it worthwhile as you mentioned.

Originally Posted by DDYTDY
The wheel probably wont go much over 7 mph. It really is a dedicated hill climb wheel for just one hill that they won''t let us ride down.

I'm registered for both Mt Washington hill climbs this year.
In that case go for the more laterally stiff for sure. If you're heavy or put out a lot of power you might actually even consider crossing it 2x. I've seen front wheels that rub the brakes when people climb on them.
urbanknight is offline  
Old 02-20-08, 10:48 PM
  #10  
cab horn
 
Join Date: Jun 2004
Location: Toronto
Posts: 28,353

Bikes: 1987 Bianchi Campione

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 42 Post(s)
Likes: 0
Liked 25 Times in 18 Posts
Heads out is not better, except for aesthetics.
operator is offline  
Old 02-20-08, 10:57 PM
  #11  
Extra Medium Member
 
redtires's Avatar
 
Join Date: Jul 2006
Location: Erie, Co
Posts: 1,880

Bikes: Fezzari Empire; State 6061 Allroad gravel; Scott Spark; Specialized Status 140

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 25 Post(s)
Liked 26 Times in 17 Posts
The only thing I can add, regarding the OP's hubs having "thick flanges" is that heads in will put more stress on the bend of the spoke, although that's not really a huge deal on a front wheel. But a thicker flange will exacerbate the bend.
__________________
Droping the hamer since '86
redtires is offline  
Old 02-22-08, 02:17 PM
  #12  
Senior Member
Thread Starter
 
DDYTDY's Avatar
 
Join Date: Nov 2006
Location: Methuen, Massachusetts
Posts: 520
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 2 Times in 1 Post
Hey thanks for all the input. I built it heads in.

Complete without a skewer in weighs 500 grams even. I'm going to run Vittoria Crono EVO-CS tires. The rear wheel will be a GEL280 laced to a Dura Ace 9 speed hub, 2 cross
DDYTDY is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.