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

Installing a rear rack without seatstay mounts?

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.

Installing a rear rack without seatstay mounts?

Old 03-13-09, 07:55 AM
  #1  
Zomar
spins pedals
Thread Starter
 
Zomar's Avatar
 
Join Date: Apr 2008
Location: Boston, MA
Posts: 76

Bikes: 2009 Orange Kilo TT Custom Built Fixed-Gear, 2009 Bianchi Volpe, 1970's Takara Fixed Gear Conversion

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Installing a rear rack without seatstay mounts?

Is it possible to safely install a rear rack on a bike that doesn't have seat stay mounting points? There are eyelets down by the dropouts but no mounting points on the seat stays. What are my options for mounting a rear rack? thank you!

I don't want to drill into my bike. I'm thinking p-clamps like this: https://www.bikecommuters.com/2008/07...-your-friends/

Any thoughts?
Zomar is offline  
Old 03-13-09, 07:58 AM
  #2  
jsharr
You Know!? For Kids!
 
jsharr's Avatar
 
Join Date: Apr 2005
Location: Just NW of Richardson Bike Mart
Posts: 6,165

Bikes: '05 Trek 1200 / '90 Trek 8000 / '? Falcon Europa

Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 35 Post(s)
Liked 15 Times in 15 Posts
P clamps will work just fine.
__________________
Are you a registered member? Why not? Click here to register. It's free and only takes 27 seconds! Help out the forums, abide by our community guidelines.
Originally Posted by colorider View Post
Phobias are for irrational fears. Fear of junk ripping badgers is perfectly rational. Those things are nasty.
jsharr is offline  
Old 03-13-09, 08:03 AM
  #3  
Retro Grouch 
Senior Member
 
Retro Grouch's Avatar
 
Join Date: Feb 2004
Location: St Peters, Missouri
Posts: 30,226

Bikes: Catrike 559 I own some others but they don't get ridden very much.

Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 1570 Post(s)
Liked 636 Times in 357 Posts
Originally Posted by Zomar View Post
Is it possible to safely install a rear rack on a bike that doesn't have seat stay mounting points? There are eyelets down by the dropouts but no mounting points on the seat stays. What are my options for mounting a rear rack? thank you!

I don't want to drill into my bike. I'm thinking p-clamps like this: https://www.bikecommuters.com/2008/07...-your-friends/

Any thoughts?
P-clamps generally come with the rack. Blackburn, for instance, used to include 2 different sizes so check them out carefully. Most of the load is on the bottom legs so pretty much all the seat stays do is stablize the rack.
Retro Grouch is offline  
Old 03-13-09, 08:12 AM
  #4  
HillRider
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,409

Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!

Mentioned: 39 Post(s)
Tagged: 0 Thread(s)
Quoted: 1893 Post(s)
Likes: 0
Liked 872 Times in 616 Posts
There is an alternate upper anchor point and that is the rear brake bolt. Several racks (Blackburn, Rhode Gear and at least one of Nashbar's house branded racks) came with a single center bracket that fastens to the center of rack top, loops over the rear brake and have a tab that brake bolt goes through.

I have a Blackburn rack mounted just this way on an older Trek frame that has dropout eyelets but no seatstay braze-ons.
HillRider is offline  
Old 03-13-09, 03:32 PM
  #5  
CaptCarrot
Senior Member
 
CaptCarrot's Avatar
 
Join Date: Feb 2009
Location: Dorset, SW England, United Kingdom
Posts: 425

Bikes: Heavily modded Cannondale Hooligan 1 (2009) and an upgraded Raleigh Max Zero-G

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Either that or get a seatpost mounted rack.
CaptCarrot is offline  
Old 03-13-09, 04:52 PM
  #6  
norwood
GO BIG RED
 
norwood's Avatar
 
Join Date: Nov 2008
Location: Hastings,NE
Posts: 678

Bikes: 1996 Bianchi Veloce 1993 Bridgestone MB-3 1992 Trek 700 1992 Trek 820

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Yet another option:
https://bicycletrip.com/itemdetails.cfm?LibId=54359

norwood is offline  
Old 03-13-09, 05:09 PM
  #7  
AnthonyG
Senior Member
 
AnthonyG's Avatar
 
Join Date: May 2005
Location: Queanbeyan, Australia.
Posts: 4,134
Mentioned: 85 Post(s)
Tagged: 0 Thread(s)
Quoted: 3448 Post(s)
Liked 417 Times in 287 Posts
Those P clamps work great. They are what we always used to use and I've never had one fail. I'm using them to mount a rack on one bike now.

Anthony
AnthonyG is offline  
Old 03-13-09, 06:00 PM
  #8  
flian
Pilot Deeper
 
flian's Avatar
 
Join Date: Jun 2008
Location: Suthrun Elanoy
Posts: 145
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I don't recollect ever even seeing seatstay mounting points for a rear rack. Anyone have a photo example?
flian is offline  
Old 03-13-09, 06:08 PM
  #9  
Cynikal 
Team Beer
 
Cynikal's Avatar
 
Join Date: Apr 2004
Location: Sacramento CA
Posts: 6,288

Bikes: Too Many

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 101 Post(s)
Liked 137 Times in 88 Posts
Originally Posted by norwood View Post

I just picked one of these for my Poprad. It rocks.
__________________
I'm not one for fawning over bicycles, but I do believe that our bikes communicate with us, and what this bike is saying is, "You're an idiot." BikeSnobNYC
Cynikal is offline  
Old 03-13-09, 06:16 PM
  #10  
HillRider
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,409

Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!

Mentioned: 39 Post(s)
Tagged: 0 Thread(s)
Quoted: 1893 Post(s)
Likes: 0
Liked 872 Times in 616 Posts
Originally Posted by flian View Post
I don't recollect ever even seeing seatstay mounting points for a rear rack. Anyone have a photo example?
My '93 vintage Trek hardtail MTB has braze-on rack mounts on the seatstays and almost all touring frames have them too.
HillRider is offline  
Old 03-13-09, 06:17 PM
  #11  
JanMM
rebmeM roineS
 
JanMM's Avatar
 
Join Date: Jan 2006
Location: Metro Indy, IN
Posts: 16,172

Bikes: Bacchetta Giro A20, RANS V-Rex, RANS Screamer

Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 641 Post(s)
Liked 326 Times in 211 Posts
Originally Posted by norwood View Post
That's the first time I've ever seen 'seatpost' and 'rack' together in a good way.....
JanMM is offline  
Old 03-13-09, 06:19 PM
  #12  
JanMM
rebmeM roineS
 
JanMM's Avatar
 
Join Date: Jan 2006
Location: Metro Indy, IN
Posts: 16,172

Bikes: Bacchetta Giro A20, RANS V-Rex, RANS Screamer

Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 641 Post(s)
Liked 326 Times in 211 Posts
Originally Posted by HillRider View Post
My '93 vintage Trek hardtail MTB has braze-on rack mounts on the seatstays and almost all touring frames have them too.
My '85 Jamis fat-tire city bike had them.
JanMM is offline  
Old 03-13-09, 06:27 PM
  #13  
rumrunn6
Senior Member
 
rumrunn6's Avatar
 
Join Date: Jul 2008
Location: 25 miles northwest of Boston
Posts: 27,573

Bikes: Bottecchia Sprint, GT Timberline 29r, Trek FX Alpha 7.0

Mentioned: 108 Post(s)
Tagged: 0 Thread(s)
Quoted: 4628 Post(s)
Liked 2,322 Times in 1,587 Posts
P-Clamps are your friend. That's how I did my front rack. One thing though - even if you get the right size p-clamp you may still want to wrap electrical tape around the frame part the clamp clamps to just to be sure it will be tight enough. One time my front rack slipped down a little and the rack bolt started rubbing against my tire.

About seatpost racks - I have one of those but when loaded they swing and swivel your seat! I had to fashion two vertical supports to the dropouts which stopped the swinging. Kinda defeats the purpose of the seatpost mount though.
rumrunn6 is offline  
Old 03-13-09, 06:31 PM
  #14  
norwood
GO BIG RED
 
norwood's Avatar
 
Join Date: Nov 2008
Location: Hastings,NE
Posts: 678

Bikes: 1996 Bianchi Veloce 1993 Bridgestone MB-3 1992 Trek 700 1992 Trek 820

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by flian View Post
I don't recollect ever even seeing seatstay mounting points for a rear rack. Anyone have a photo example?
Here's an example:
norwood is offline  
Old 03-13-09, 06:42 PM
  #15  
Scooper
Decrepit Member
 
Scooper's Avatar
 
Join Date: Aug 2005
Location: Santa Rosa, California
Posts: 10,489

Bikes: Waterford 953 RS-22, several Paramounts

Mentioned: 69 Post(s)
Tagged: 0 Thread(s)
Quoted: 628 Post(s)
Liked 60 Times in 49 Posts
My Tubus Luna rack uses a single strut that attaches to the brake bridge using the brake mounting bolt.

__________________
- Stan

my bikes

Science doesn't care what you believe.
Scooper is offline  
Old 03-13-09, 06:47 PM
  #16  
joejack951
Senior Member
 
joejack951's Avatar
 
Join Date: May 2004
Location: Wilmington, DE
Posts: 12,078

Bikes: 2016 Hong Fu FM-079-F, 1984 Trek 660, 2005 Iron Horse Warrior Expert, 2009 Pedal Force CX1, 2016 Islabikes Beinn 20 (son's)

Mentioned: 35 Post(s)
Tagged: 0 Thread(s)
Quoted: 1229 Post(s)
Liked 76 Times in 55 Posts
Here's some big pics of my Crosshairs with a Jannd rack attached at the seat stays:

https://home.comcast.net/~joejackson9...s/DSC09675.JPG
https://home.comcast.net/~joejackson9...s/DSC09676.JPG
joejack951 is offline  
Old 03-13-09, 08:16 PM
  #17  
cobba
Senior Member
 
Join Date: Aug 2006
Posts: 1,867
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 166 Post(s)
Likes: 0
Liked 52 Times in 41 Posts
Jandd makes this adapter for bikes with 'wishbone' style seat stays:

cobba is offline  
Likes For cobba:
Old 05-16-19, 01:43 AM
  #18  
adlu
Junior Member
 
Join Date: May 2019
Location: Berkeley, CA
Posts: 24
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked 0 Times in 0 Posts
Has anyone experienced any stability or weight limitations when using the p-clamps instead of braze-ons?

I'm thinking about buying an old Marin steel frame with no braze-ons for a long-distance bikepacking trip. I'll be traveling relatively light, but most likely will still use a rear rack.
adlu is offline  
Old 05-16-19, 07:07 AM
  #19  
HillRider
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,409

Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!

Mentioned: 39 Post(s)
Tagged: 0 Thread(s)
Quoted: 1893 Post(s)
Likes: 0
Liked 872 Times in 616 Posts
Well, you resurrected a 10 year old thread but P-clamps as the upper (seatstay) mounting points work very well. Just get them in a diameter that snugs down firmly on the stays and use vinyl coated clamps to protect the paint.

They have also been used as lower mounting points for frames that don't have dropout eyelets but they are less stable and sturdy there.
HillRider is offline  
Old 05-16-19, 07:07 AM
  #20  
rumrunn6
Senior Member
 
rumrunn6's Avatar
 
Join Date: Jul 2008
Location: 25 miles northwest of Boston
Posts: 27,573

Bikes: Bottecchia Sprint, GT Timberline 29r, Trek FX Alpha 7.0

Mentioned: 108 Post(s)
Tagged: 0 Thread(s)
Quoted: 4628 Post(s)
Liked 2,322 Times in 1,587 Posts
Originally Posted by adlu View Post
Has anyone experienced any stability or weight limitations when using the p-clamps instead of braze-ons?

I'm thinking about buying an old Marin steel frame with no braze-ons for a long-distance bikepacking trip. I'll be traveling relatively light, but most likely will still use a rear rack.
wow old thread. I've used common p-clamps from the hardware store but they make a more substantial unit specifically for bike racks. they use 2 screws, 1 to hold onto the bike stay & the other to hold the rack.



I remember seeing someone here with them. If I can remember who the person is I'll try to mention them so maybe they can chime in with a link. here we go see post#11
Mounting a rear rack w/o braze ons?

by @cyccommute

maybe he has a current photo?


here's a link to a product on amazon Tubus Clamp Set for Seat Stay Mounting 16 mm (#71616) but I guess there is a specific size, not sure how that would fit your bike stay

Last edited by rumrunn6; 05-16-19 at 07:13 AM.
rumrunn6 is offline  
Old 05-16-19, 10:18 AM
  #21  
Atlas Shrugged
Senior Member
 
Join Date: Mar 2010
Posts: 810
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 514 Post(s)
Liked 632 Times in 296 Posts
Suprised no one mentioned seatpost collar adapter which replaces your seatpost collar with one that has integrated rack mounts. This is the way specialized handle mounting a rack on the new diverge. Works great with no issues over thousands of touring km's.

https://salsacycles.com/components/c...lars/rack-lock
https://www.amaincycling.com/special...700001/p747412
Atlas Shrugged is online now  
Old 05-16-19, 10:31 AM
  #22  
2old
Senior Member
 
Join Date: Jul 2014
Location: socal
Posts: 3,578
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 720 Post(s)
Liked 524 Times in 394 Posts
I've used a seatpost mounted rack with 10 pounds of weight (probably would take a lot more) effectively. Very sturdy system, but it was from Performance Bike which is no longer viable, but I'm sure there are other systems.
2old is offline  
Old 05-16-19, 11:19 AM
  #23  
rumrunn6
Senior Member
 
rumrunn6's Avatar
 
Join Date: Jul 2008
Location: 25 miles northwest of Boston
Posts: 27,573

Bikes: Bottecchia Sprint, GT Timberline 29r, Trek FX Alpha 7.0

Mentioned: 108 Post(s)
Tagged: 0 Thread(s)
Quoted: 4628 Post(s)
Liked 2,322 Times in 1,587 Posts
Originally Posted by velopig View Post
seatpost collar adapter
I would favor the Rack-Locks unit, cuz the tension bolt(s) appears to be separate from the rack bolt
rumrunn6 is offline  
Old 05-16-19, 11:20 AM
  #24  
Iride01 
MotuekaCascadeChinook
 
Iride01's Avatar
 
Join Date: Jul 2017
Location: Mississippi
Posts: 11,465

Bikes: Tarmac Disc Comp Di2 - 2020

Mentioned: 43 Post(s)
Tagged: 0 Thread(s)
Quoted: 4658 Post(s)
Liked 3,155 Times in 2,197 Posts
Originally Posted by adlu View Post
Has anyone experienced any stability or weight limitations when using the p-clamps instead of braze-ons?

I'm thinking about buying an old Marin steel frame with no braze-ons for a long-distance bikepacking trip. I'll be traveling relatively light, but most likely will still use a rear rack.
This question is deserving of it's own thread. This question is no more similar to the topic of the thread than any other bike question.

Be bold.... start new threads, even if your question is exactly the same.
Iride01 is offline  
Old 05-16-19, 11:22 AM
  #25  
rumrunn6
Senior Member
 
rumrunn6's Avatar
 
Join Date: Jul 2008
Location: 25 miles northwest of Boston
Posts: 27,573

Bikes: Bottecchia Sprint, GT Timberline 29r, Trek FX Alpha 7.0

Mentioned: 108 Post(s)
Tagged: 0 Thread(s)
Quoted: 4628 Post(s)
Liked 2,322 Times in 1,587 Posts
Originally Posted by cobba View Post
adapter for bikes with 'wishbone' style seat stays:
I think those are versatile, I have a cpl of those, even made one from scraps. but I find it difficult to get a tool in there to tighten those nuts & wind up finessing it with locking needle nose pliers
rumrunn6 is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.