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Cracked

Old 08-13-01, 09:58 PM
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LittleBigMan
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Cracked

I noticed a not-so-small crack in the welded joint of my seat post-mounted bike rack today. I noted it and pretended that nothing will happen so bad that I die.

About two miles into my ride home, I hear this sound..."Voob, voob, voob..." like my tire rubbing the frame or something. Then, "Crash!"

All my goods were plopped on the street. At least I did such a good job of bungie-cording that it all remained intact, one solid piece in the road.

I left the broken rack on the side of the road (no trash cans nearby), strapped my goods on my back and headed for the train station with my trusty MARTA card.

I will have to ride using Mr. Backpack for a while. But I am flexible!
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Old 08-13-01, 10:40 PM
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Chris L
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Damn, that's one more thing I can break this month.

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Old 08-14-01, 12:27 AM
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I hope you go back to properly dispose of your trash, lack of a trash can is not sufficent reason to leave junk on the side of the road.

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Old 08-14-01, 04:04 AM
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mike
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That is a fascinating thing about cracks in bikes - especially in the mountings of rear carriers.

Once you see a crack, you rarely have more than a few hours riding before the piece breaks completely in two.
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Old 08-14-01, 04:08 AM
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Seatpost racks are the stupidest thing since sliced bread. They provide stacks of leverage on that weld, require massively thick bits of metal to support a tiny load, and there is a potential for seatpost failure.
Their weight/load ratio is very bad, but they are chosen by people on lightweight bikes.
Much better to get a bike with threaded rack eyelets and attach a proper rack. A 3-point Tubus Fly can carry more, and weighs less than any seatpost rack.
If you dont have eyelets, think about upgrading to a Brooks B17 saddle with a Carradice saddlebag. The total weight/load ratio beats a lightweight saddle with a seatpost rack.
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Old 08-14-01, 01:19 PM
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Pete,
Sorry to hear about your misforture.

Was this a Delta seatpost mount rack? That's what I have.
I guess that's one more thing to add to my weekly checklist.
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Old 08-14-01, 02:19 PM
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If my memory serves me correct those types of racks have a mx cary load weight of about 15 lbs. Get a Blckburn EX 1 or MTN rack. The EX 1 you can haul up to 35 lbs.
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Old 08-14-01, 02:46 PM
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Seatpost racks are the stupidest thing since sliced bread.
Obviously, you have never seen my wife butcher fresh bread...then you would appreciate the pre-sliced stuff! Perhaps if there is a place for pre-sliced bread, there is also a place for seatpost racks...although as you point out, for only light loads.

Sorry to hear of your misfortune, Pete! Better luck with your next load bearing contrivance!
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Old 08-14-01, 03:42 PM
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Originally posted by Andre
I hope you go back to properly dispose of your trash, lack of a trash can is not sufficent reason to leave junk on the side of the road.

Andre
That's a good idea, Andre. Thanks!

I don't remember what the brand name was. It was supposed to carry 25 lbs. It lasted about 2 years.

Like Michael W. said, a proper arrangement with eyelets for mounting a rack would have been best.

I think these things were designed for mountain bikes ridden only on the weekend. Everyday commuting really took everything out of that rack.

Last edited by LittleBigMan; 08-14-01 at 03:48 PM.
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Old 08-14-01, 07:49 PM
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Backpacks are underrated for bike commuting. I started using one recently, and I like it better than using racks for modest loads. In addition to carrying work or errand loads, it's nice to be able to have my pump, on-the-road bike tools, etc. all right there in the bag without having to transfer them from bike to bike.
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Old 08-14-01, 09:32 PM
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I don't like backpacks because they make it too hot in summer. I'm with Hunter on this one. My Blackburn MTN rack has served me pretty well.

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Old 08-15-01, 12:45 AM
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Yeah, Blackburns are OK! Messenger Bags are good too, even in summer
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Old 08-15-01, 06:56 AM
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Gee, my blacburn rack regularly carries 50-60 lbs of engineering books. I wouldn't even think of one of those seatpost racks.
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Old 08-15-01, 07:24 AM
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Sorry about your loss, Pete.

I have a Cyclepro rack, but it ends up holding less than my messenger bag during commutes (4-5 lb on the rack, the bag weighs in at 12 lb). It does hold a lot of weight when I go shopping, though. I paid $25 for it at an LBS in Lawrence, KS.

Do you have mounting eyelets on your frame? Some racks come with metal straps to go around the chain stay and the seat stay in lieu of the frame eyelets. The mounting bolts for the rack tighten the straps around the stay tubes.

Jonathan
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Old 08-15-01, 07:35 PM
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Jonathan,

That was my problem. At the LBS where I bought my bike (which had no eyelets), the only solution they provided me was a seatpost-mounted rack.

I like your mention of another way of fastening a rack to a bike without proper fixtures.
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Old 08-15-01, 09:03 PM
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Sportsmans guide has a KILLER DEAL on a superb backpack. It is a Swiss rifleman's pack from WWII. It is waterproof!! Yes it is used but in GREAT shape. These packs were made to last, and last, ans last. I have one and it is still in superb condition. They are asking a whole $10 for them.
Go to http://sportsmansguide.com/ for more info then enter FX1M-54653 into the Order from any catalog area. no pic of it but you can find one if you look.
Performance also has a hydration/back pack on sale for $50 it is the Atlas Fast pack. 1564 cubic inches with a 60 oz. bladder. Killer little pack, but the Swiss Pack is bigger.
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Old 08-16-01, 04:10 AM
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I guess the Swiss Army will be getting rid of their bikes soon. These have racks that can take some heavy abuse.

My commuting bike had fender eyelets, but no threads for the top of the seatstay. My LBS brazed on some threads for about $20, and the rack is much more secure with 4 mounting points.
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