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Old 09-03-06, 02:33 PM   #1
Jerseysbest
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Is there a reason there aren't any steel cranks around?

Well, besides the one piece cranks on Walmart bikes, is it a weight issue? Do they even sell forged steel cranks? I want an affordable durable crank for my fixed gear bike and weight is not an issue for me. Basically, I'm willing to spend money but don't want to spend a lot on a new aluminum crank set that I think will last me only to have it break on me.

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Old 09-03-06, 03:06 PM   #2
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All cranks eventually fail. Even steel ones. If you want durable, pick up something like the sugino 75's for fixed. Alternatively post this in SSFG if you haven't already.
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Old 09-03-06, 03:16 PM   #3
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Why look for steel cranks if you can find alloy cranks used for just a few bucks? What makes you think they're going to break?
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Old 09-03-06, 03:23 PM   #4
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How many of us have had aluminum cranks bust on them during normal usage?
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Old 09-03-06, 03:25 PM   #5
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Quote:
Originally Posted by The Fixer
Why look for steel cranks if you can find alloy cranks used for just a few bucks? What makes you think they're going to break?
I must agree with The Fixer that aluminum cranks have a proven track record of durability coupled with light weight. I'm an "UberClyde" and I've never been able to damage any of the wide variety of aluminum cranks that I've used.

To be equally light and strong, steel cranks would need to have a hollow tubular cross-section. These could be made, but at much higher production cost than a cast aluminum crank. Since the steel offers no significant advantage and much higher production cost, almost all bicycle cranks (of any quality at all) are made of aluminum.
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Old 09-03-06, 03:32 PM   #6
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I've destroyed two crank arms in the past 13 months

Three if you count the bent spider

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Old 09-03-06, 03:34 PM   #7
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Hmm... I always thought a forged piece of steel would be cheaper and stronger, just heavier, than aluminum. But I really don't know.
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Old 09-03-06, 06:46 PM   #8
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if that's the way it is, I've got a nice steel crank I'll sell you.
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Old 09-03-06, 06:48 PM   #9
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You are teh strong!
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Old 09-03-06, 06:53 PM   #10
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I will never say a bicycle part cannot be broken. In my many years as a wrench, I have seen everything break I think. I have a wall of shame in my shop with an assortment of broken and misused bike parts dangling from it. I had to stop putting broken cranks and busted helmets up there because they were overwhelming the others. As someone else said, everything fails at some point. If you have gone through that many cranks in 13 months, I wonder if riding style may be something to work on. Or if you are a big drop, big air guy, then get used to it. You will be breaking more stuff than the average rider.
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Old 09-03-06, 07:32 PM   #11
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Quote:
Originally Posted by Jerseysbest
I've destroyed two crank arms in the past 13 months

Three if you count the bent spider
Was this on a mountain bike? If it was just cruising down the road, you have my sympathy, but you might look into the Shimano Saint line of components. They're still aluminum, but as close to bombproof as it comes. Sorry, can't recommend any steel cranks, only because I don't know of any reputable manufacturers, just cheap Walmart junk.
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Old 09-03-06, 07:57 PM   #12
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bmx cranks are often made of tubular cromoly.
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Old 09-03-06, 10:17 PM   #13
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I had Ashtabula one piece forged steel cranks on my BMX bike way back in the old days. I would be shocked if anybody EVER broke one of those monsters. On the other hand they weighed 3 lbs and wouldn't work on a road or track bike. I haven't been into the BMX scene for decades, but Redline used to make cranks made from tubular chromoly. At the time they were considered very expensive.

But really, why do you think you are going to break your cranks? I have a set of Dimension cranks on my Fixie that cost about $40 retail and I'm not worried. Spend the big bucks on a Sugino 75 crankset and all that track specific stuff if you want, but I haven't had any problem with cheap cranks and SRAM 8-speed chain.
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Old 09-03-06, 10:23 PM   #14
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Cook Bros. also makes tubular steel cranks... Nothing lasts forever. If you designed and built a crank that'll last forever, it'll be prohibitively heavy and detract from performance.
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Old 09-04-06, 12:56 AM   #15
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Perhaps instead of steel cranks you should be looking for a higher quality, easily available crank with a good warranty.
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Old 09-04-06, 10:23 AM   #16
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Quote:
Originally Posted by Ziemas
Perhaps instead of steel cranks you should be looking for a higher quality, easily available crank with a good warranty.
ARe there any cranks that come with a warrenty?
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Old 09-06-06, 04:17 PM   #17
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Quote:
Originally Posted by operator
All cranks eventually fail. Even steel ones. If you want durable, pick up something like the sugino 75's for fixed. Alternatively post this in SSFG if you haven't already.
I've never in 50 years of road riding had a crank that failed. If there are no steel cranks on decent bikes it may be more to conform with the rest of the components being aluminum & hence rustproof & lighter, than with other factors. Steel could be made stronger than alu. but alu. is already strong enough, except maybe for high-altitude ATB adventures.
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Old 09-06-06, 06:09 PM   #18
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There are several brands of steel crank arms available for trials unicycles. Those won't accept a crankring, however. There might be some suitably close cousins in the two wheeled world of trials.
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Old 09-06-06, 10:40 PM   #19
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Quote:
Originally Posted by Jerseysbest
ARe there any cranks that come with a warrenty?
Most cranks from a reptuable maker come with a warenty.

Here's the blurb from the North American Shimano site:
Shimano warrants to the original retail purchaser that the Shimano bicycle division product for which they received this warranty, is free from non-conformities in material and workmanship for a period of two years and their Dura-Ace and Shimano XTR components/wheels are covered for a period of three years from the date of original retail purchase. Shimano shoe products, soft goods and other wheels are warranted for a period of one year.



The links for info on the SRAM?Truativ site are not working.....
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