Know the rules The Paceline Forum Builder's Spotlight


Go Back   The Paceline Forum > General Discussion

Reply
 
Thread Tools Display Modes
  #16  
Old Today, 07:27 AM
oldpotatoe's Avatar
oldpotatoe oldpotatoe is offline
Proud Grandpa
 
Join Date: Oct 2009
Location: Republic of Boulder, USA
Posts: 47,407
Give me a shout..I can design and build you a wheelset specifically for you and your needs using
DT, Bitex, WI hubs laced to
Kinlin or Velocity or BTLOS rims using
Sapim spokes..

Bitex hubs laced to Velocity Aileron rims using Sapim Race spokes.....'About' $650 or so
__________________
Chisholm's Custom Wheels
Qui Si Parla Campagnolo
Reply With Quote
  #17  
Old Today, 08:56 AM
Fat Cat Fat Cat is offline
Senior Member
 
Join Date: Jan 2024
Posts: 142
I built CR-18's on Ultegra 6600 hubs with DT stainless. But I'm old school and 38's are as big as will fit in my frame so there's that too
Reply With Quote
  #18  
Old Today, 10:08 AM
sokyroadie sokyroadie is offline
Senior Member
 
Join Date: Sep 2006
Location: Austin, KY
Posts: 2,956
Quote:
Originally Posted by Jdm View Post
I have hooked BTLOS wheels for gravel, although I wish I bought hookless because I run low tire pressure.
I guess I am a luddite because IMHO there is no downside to hooked rims only plusses.
__________________
Sonder MTB, Seven Ti, Lynskey Ti Gravel
Reply With Quote
  #19  
Old Today, 10:46 AM
Jdm Jdm is online now
Senior Member
 
Join Date: Jan 2024
Location: Bay Area
Posts: 224
Quote:
Originally Posted by sokyroadie View Post
I guess I am a luddite because IMHO there is no downside to hooked rims only plusses.
I can run slightly lower tire pressure with hookless, which is a big plus for the harsh gravel I ride.
Reply With Quote
  #20  
Old Today, 01:10 PM
Mark McM Mark McM is online now
Senior Member
 
Join Date: Jun 2006
Posts: 12,585
The hookless concept (despite marketers protests to the contrary) is primarily a cost savings measure for carbon rims. Hooks cost nearly nothing to include on aluminum rims, so nearly all the aluminum rims you'll find (gravel and otherwise) will have hooks.
Reply With Quote
  #21  
Old Today, 01:52 PM
RoosterCogset RoosterCogset is offline
Senior Member
 
Join Date: Feb 2020
Posts: 1,564
Quote:
Originally Posted by Jdm View Post
I can run slightly lower tire pressure with hookless, which is a big plus for the harsh gravel I ride.
You believe that if you reduce the hooked tire's pressure to the same that there would be some problem?
Reply With Quote
  #22  
Old Today, 02:11 PM
Jdm Jdm is online now
Senior Member
 
Join Date: Jan 2024
Location: Bay Area
Posts: 224
Quote:
Originally Posted by RoosterCogset View Post
You believe that if you reduce the hooked tire's pressure to the same that there would be some problem?
Don't know! I'm following Zipp's tire pressure guide where it has different recommendations based on tubeless hooked versus tubeless hookless.
Reply With Quote
  #23  
Old Today, 02:18 PM
rccardr's Avatar
rccardr rccardr is offline
Senior Member
 
Join Date: Apr 2011
Location: The Secret Underground Laboratory
Posts: 2,735
Big Mavic fan here, have been running a set of A319’s laced to DA7403
hubs with Sapim DB Race spokes with brass nipples for two years. Flawless performance on heavy gravel, 300 mile week long gravel tours and loaded touring. I built them myself, but you can buy the rims and have them made with the hub of your choice.

Recently conferred with OP on a new set of heavy duty wheels and he suggested Kinlin XR26T’s, which I built up,using another ser of NOS DA7403 hubs, same spokes as above. They are lighter than the A319’s but with similar internal width.

Either one will happily accept up to an actual 38mm tire.
Reply With Quote
  #24  
Old Today, 02:55 PM
Mark McM Mark McM is online now
Senior Member
 
Join Date: Jun 2006
Posts: 12,585
Quote:
Originally Posted by Jdm View Post
Don't know! I'm following Zipp's tire pressure guide where it has different recommendations based on tubeless hooked versus tubeless hookless.
It's entirely possible that the reason that Zipp's pressure calculator produces lower numbers for hookless wheels is not because hookless wheels can use lower pressures; but rather it is because hookless wheels can't use higher. pressures The pressure limits for hookless wheels are lower than for hooked wheels, so in some given situation in which some particular pressure would give the best performance, if that pressure is above the limit for hookless wheels, the Zipp pressure calculator won't recommend it.

A historical perspective:

50 years ago (1974), the Schwinn Varsity was a mass produced low-to-mid quality 10spd bike. It came with single wall (hookless) steel rims, with 32mm wide gum wall tires. Due to the lower tolerances of low cost mass production and the lack or rim hooks, the maximum pressure that could be used in these tires was 65 psi.

Fast forward to 2024. We now have high-tech wheels made with state of the art carbon fiber. Tires are better, with better treads and casings, and carbon/kevlar composite beads. These wheels and tires are made with better materials and to higher tolerances than the Schwinn Varsity from 50 years earlier. So how much pressure can be used in a 32mm tire? According to ISO specs, when used on a hookless wheel these tires can be inflated to a whopping maximum of 65 psi. Even after the advances of the last 50 years, the absence of a hook is limiting hookless wheels to low pressures.
Reply With Quote
Reply


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

Forum Jump


All times are GMT -5. The time now is 03:26 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.