Go Back  Bike Forums > Bike Forums > General Cycling Discussion
Reload this Page >

Will "standard" roof-mounted bike racks fit "aero" bars

General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

Will "standard" roof-mounted bike racks fit "aero" bars

Old 10-16-17, 02:17 PM
Thread Starter
Join Date: Apr 2015
Posts: 49
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 20 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Will "standard" roof-mounted bike racks fit "aero" bars

Sorry if this an extremely obvious question but I haven't found an answer online yet.

As far as I can see there are broadly two kinds of roof bars - traditional square steel bars, and profiled "aero" bars.

Cheaper roof-mounted bike racks come as standard with u-bolt type fittings to suit square bars.

The adapters to fit into the slots in aero bars are usually sold separately for these cheaper bars.

More expensive bars seem to some with the parts to fit "aero" bars as standard.

Is there a reason why I couldn't/shouldn't use the u-bolt fittings on an aero bar? Will they be too small to fit around the bar, or will they crush the soft aluminium?

I have the opportunity to get some second-hand Thule 530 bike racks, but having to buy an "aero" fitting kit for them would make the price a lot less appealing.
davidallenxyz is offline  
Old 10-16-17, 06:06 PM
Bikes are okay, I guess.
thumpism's Avatar
Join Date: Jan 2015
Location: Richmond, Virginia
Posts: 4,555

Bikes: Waterford Paramount Touring, Bridgestone RB-T, Trek 510 city build, Giant CFM-2, Raleigh Sports 3-speeds in M23 L23 and L19, Schwinn Cimarron oddball build

Mentioned: 34 Post(s)
Tagged: 0 Thread(s)
Quoted: 1201 Post(s)
Likes: 0
Liked 13 Times in 9 Posts
Originally Posted by davidallenxyz View Post
Is there a reason why I couldn't/shouldn't use the u-bolt fittings on an aero bar? Will they be too small to fit around the bar, or will they crush the soft aluminium?
U-bolts will probably not span the width (front-to-back-aero cross-section) of the bar, so you would need to use two regular bolts and a flat plate on the bottom. If I found an affordable used rack I'd certainly try that.
thumpism is online now  
Old 10-16-17, 07:41 PM
Steve B.
Senior Member
Join Date: Jul 2007
Location: South shore, L.I., NY
Posts: 3,183

Bikes: Flyxii FR322, Soma Smoothie, Miyata City Liner, Specialized FSR Comp, Fuji Professional

Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 1053 Post(s)
Liked 21 Times in 14 Posts
Thule and I believe Rocky Mount used square bar. Yakima traditional has been round. Plus assorted no-name square versions. All have released as well the aero crossbar version, as you will also find on a lot of OEM car cross bars. Note as well that not all aero crossbar have slots for attachments, the slots tend to be a pain as they can induce wind noise and whistle.

The manufacturers of roof systems have somewhat migrated their newer bike tray systems to have a clamping system that will work on square, round and aero and to be interchangeable between manufacturers. Generally, a new tray will work on all 3 of the designs.

As example, I use Thule Circuit fork trays on both my Yakima Core Bars, which is an aero design, as well as using it on the Subaru Outback OEM aero cross bars.

It's thus unlikely you will get a fork mount bike tray designed for square crossbar to fit an aero crossbar, if only that the front clamp system is sized for a particular square bar dimensions. And you are correct that kits to adapt can be pricey.

No great cheap options except to what e-bay and Craigslist. I see a LOT of Thule and Yakima systems sold on Craigslist.
Steve B. is offline  
Old 10-16-17, 08:33 PM
Senior Member
2cam16's Avatar
Join Date: Oct 2016
Location: San Mateo,Ca.
Posts: 2,539


Mentioned: 35 Post(s)
Tagged: 0 Thread(s)
Quoted: 576 Post(s)
Liked 22 Times in 19 Posts
Yakima Forklifts on my Forester's aero bars. Love them.
2cam16 is offline  
Old 10-17-17, 09:11 PM
Occam's Rotor
wgscott's Avatar
Join Date: Jul 2013
Location: The Timbers of Fennario (CL77)
Posts: 4,787

Bikes: Steel

Mentioned: 61 Post(s)
Tagged: 0 Thread(s)
Quoted: 2366 Post(s)
Liked 153 Times in 91 Posts
Embrace the aero.

I bought a pair of Rockymounts Jetlines that slot right into my T-slots on my aero rack for a particularly elegant and seamless, low-profile bike rack. They also have one called the Tierod if you don't have T-slots. I paid less than $100 each. (The amazon price is higher now for some reason, but it might be worth shopping around.)

I put these on top of my Rav4 hybrid, and did not take a hit on the mpg.

Last edited by wgscott; 10-17-17 at 09:14 PM.
wgscott is offline  
Old 10-19-17, 10:50 AM
Senior Member
demoncyclist's Avatar
Join Date: Oct 2002
Location: Medway, MA
Posts: 2,728

Bikes: 2011 Lynskey Sportive, 1988 Cannondale SM400

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 19 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Thule has this available: https://www.thule.com/en-us/us/bike-...adapt9-_-24712
demoncyclist 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

Thread Tools
Search this Thread

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

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.