L H T frame question
11-09-14 | 08:08 AM
#1
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From: North Texas
Bikes: Surly Disc Trucker, Ogre, Steamroller
L H T frame question
I'm thinking of building up a L H T. (bought a parktool repair book and have been watching tons of videos) I found a 2012 frameset for $470 at bikeparts.com and noticed that the chainstay has a dished out section just behind the BB. I would think this would weaken the tube. Does anyone know why they did that and does it have any affect on the strength of the chainstay. I did notice that Surly says you can crush the chainstay by improper mounting of a kickstand, so this has me a little worried.
Thanks
Thanks
11-09-14 | 08:14 AM
#2
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From: Middle Earth (aka IA)
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It can be tough building up a frame and it will cost you more to build this up from a frame. Plus you will have a shop that will stand behind the bike.
Dimples on a chainstay are a good thing if you want clearance for your chainrings, https://www.bikeforums.net/bicycle-me...chainstay.html
Dimples on a chainstay are a good thing if you want clearance for your chainrings, https://www.bikeforums.net/bicycle-me...chainstay.html
11-09-14 | 10:30 AM
#3
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A choice QBP Justifies .. instead SOMA & many others have made a Place to put a Kickstand ..
A sheet of metal may be "better" flat , but its hard to make a Car out of it that way ..
Metal reshaping is how things get Made.
A sheet of metal may be "better" flat , but its hard to make a Car out of it that way ..
Metal reshaping is how things get Made.
Last edited by fietsbob; 11-09-14 at 01:09 PM.
11-09-14 | 11:12 AM
#4
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I am not sure if your concern is only the shape of the chainstay or if you wanted to install a kickstand and are now concerned that you can't.
I think bikemig covered the chainstay shape issue quite well, I have nothing to add.
If your concern is that you can't use a kickstand, Surly has big concerns about the kickstands immediately behind the bottom bracket. But the Greenfield ones that clamp on near the rear dropout are less likely to damage a frame. But I still do not tighten the screws too much on my Greenfield and I use blue loctite to keep the screws from falling out. I suspect however that Surly would still have a problem with the Greenfield if you asked them.
The photo is not a Surly, I am only using this photo as an example of the kickstand I am talking about.
I think bikemig covered the chainstay shape issue quite well, I have nothing to add.
If your concern is that you can't use a kickstand, Surly has big concerns about the kickstands immediately behind the bottom bracket. But the Greenfield ones that clamp on near the rear dropout are less likely to damage a frame. But I still do not tighten the screws too much on my Greenfield and I use blue loctite to keep the screws from falling out. I suspect however that Surly would still have a problem with the Greenfield if you asked them.
The photo is not a Surly, I am only using this photo as an example of the kickstand I am talking about.
11-10-14 | 03:32 AM
#6
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From: Star City, NE
Bikes: 2008 Surly Long Haul Trucker "The Truckerino"
[...]
If your concern is that you can't use a kickstand, Surly has big concerns about the kickstands immediately behind the bottom bracket. But the Greenfield ones that clamp on near the rear dropout are less likely to damage a frame. But I still do not tighten the screws too much on my Greenfield and I use blue loctite to keep the screws from falling out. I suspect however that Surly would still have a problem with the Greenfield if you asked them.
The photo is not a Surly, I am only using this photo as an example of the kickstand I am talking about.
If your concern is that you can't use a kickstand, Surly has big concerns about the kickstands immediately behind the bottom bracket. But the Greenfield ones that clamp on near the rear dropout are less likely to damage a frame. But I still do not tighten the screws too much on my Greenfield and I use blue loctite to keep the screws from falling out. I suspect however that Surly would still have a problem with the Greenfield if you asked them.
The photo is not a Surly, I am only using this photo as an example of the kickstand I am talking about.
11-10-14 | 07:36 AM
#7
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jargo432, For the sake of argument let's presume that the dimpling for chain ring clearance weakens the chain stay. The level of degradation is so slight as to make no meaningful difference.
I think the majority of manufacturers frown on the addition of a clamp on style of kickstand to the chain stays.
Brad
I think the majority of manufacturers frown on the addition of a clamp on style of kickstand to the chain stays.
Brad
11-10-14 | 03:51 PM
#8
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LHT for loaded touring, get a Click-Stand. Just stick the folded-up stand somewhere on the bike (they also sell a frame-mount holder). Also, the higher center of gravity is a plus with the weight of a loaded bike.
