BIKEPGH MESSAGE BOARD ARCHIVE

« Back to Archive
19

Installing racks and panniers

I own two bikes that I commute on and one of them is a Trek 7.3fx that I want to use as a grocery / rain / winter bike but the thing is just uncomfortable to ride. I am going to go back for a fit but am considering other options as well.


On the Trek adding a rear rack and panniers was as easy as it could possibly be. How would I go about doing installing a rack for panniers on a bike that isn't setup to accept them?


rsprake
2009-06-08 17:33:17

P-Clamps


Their only downside is that they can't properly secure the rack for heavier loads--you may get a bit of wobbling, especially if the load isn't balanced between two panniers.


bjanaszek
2009-06-08 18:08:09

they also have the seatpost mount racks, but they kinda suck. well at least i haven't had any good experience with them.


erok
2009-06-08 19:06:56

I figured there might be a rack that would use the seat post and mount to the fender eyelets but haven't found anything. I can't imagine a seat post rack staying on straight with a laptop in one of the panniers.


rsprake
2009-06-08 19:23:03

Cool, there are some nice mounting options in the comments from the blog post bjanaszek posted.


Thanks


rsprake
2009-06-08 20:20:40

I have welded on racks. They are made from chain/seat stays from another bike. This is the strongest rack I have seen. It does add weight, but your friends can sit on it.


ncbt
2009-06-18 21:00:28

You have a TIG machine over there NCBT? I've been wanting to learn.


eric
2009-06-18 21:06:29

If you have fender eyelets, you're set.


Everyone's best friend Mr. Kraynick has a buch of racks for about $15 each... front ones that fit on your fender eyelets and then attach to your fork crown reflector hole thinger, and rear ones that go on the fender eyelets and then can attach to the seatstays with p-clamps.


bradq
2009-06-18 21:28:51

I'm using a mig now, I am banging on every govt door I can to get the 6000$ to get a HHO 2000.


ncbt
2009-06-18 21:32:54

I'm using a mig now, I am banging on every govt door I can to get the 6000$ to get a HHO 2000.


ncbt
2009-06-18 21:33:15

Mmmm, TIG. So much fun...like a magic wand with 6000 degrees on the end.


Eric, CCAC has a few welding courses, including one that has ya playing with MIG and TIG. Reasonably priced, decent instructors; only thing that sucks is heading out to Oakdale.


reddan
2009-06-19 00:25:59

No need to spend $6000 for a TIG wleder. $100 will get you a fine used machine that will weld bicycle tubing no problem. I'm not sure what you are welding with MIG, but anything resembling lightweight bicycle tubing is not going to be happy being stuck together that way.


Dan-I've looked into the classes, but I think I've settled on finding a cheap used TIG welder. I figure if I take the classes I'd still need to buy a machine. If I collect enough old frames I can burn my way into some semblance of proficiency, right? Or not, I should take the classes.


I've thought about a brazing set-up, which can be found cheap, but with no external building to store the tanks of explosive gasses, I've decided a nice safe welder with a bottle of inert gas sounds like a better idea.


eric
2009-06-19 01:38:30

Naw, a HHO 2000 is a oxyhydride (sp) welder. It uses an HHO gas generator to make on demand gas. It's brazing but there is no pollution, no gas to re fill, and no gas to blow up. It's also safe for people to use it... Water and electric...


ncbt
2009-06-19 01:53:13

A friend of mine taught himself how to braze and build himself a lugged frame. One season later and it hasn't fallen apart yet....


bjanaszek
2009-06-19 02:19:14

Oxyhydride? Neato...I'll have to look into that.


Eric, it's entirely possible to MIG thinwall stuff together; the biggest problem with MIG, in my limited experience, is just that it's real easy to lay down way too much material with way too much heat. Really comes down to skill with the machine, as well as helpful things like using flux-cored wire and a neutral gas to keep out that nasty oxygen stuff while ya weld.


That said, I'd rather braze, gas-weld with oxy-acetylene, or weld with TIG than use my MIG for bicycle tubing. That's a reflection on me and my skillz or lack thereof, though.


reddan
2009-06-19 02:22:24

Ah, never heard of the H20 thing. Cool!


From what I can tell is uses 220v current to break up water into hydrogen gas, which is then used as fuel to weld or braze or cut.


Since it still uses an electric current , which in PA is still provided mostly by coal, I wonder how more or less friendly to the environment this would be than a TIG machine? Argon is inert, and a 110 machine can weld anything a bike geek could ever want.


Eventually we'll figure out how to strip hydrogen from water without a net loss in energy. Then we'll see more fuel cells, and we can all tool around in cars that only exhaust water.


eric
2009-06-19 02:26:59

I am working on it. The goal is a pulse like a sound wave (sine, sawtooth etc.) that you send in a pulse through the stainless plates, this breaks it up efficiently.

I have been content for a while with mig but, I want to progress.

The water fuel is a bad idea. If you could power your car by hho, the consumers would want huge cars, like campers. It would be a nightmare.


ncbt
2009-06-19 05:21:12

I can put eyelets on a steel frame. Hey bike building/welding thread....


ncbt
2009-06-19 05:31:54