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#11
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Cottered Cranks with Fixed Gear
In article
.com, "maxo" wrote: They're not a PITA to take apart either, unless somebody's over-tightened the cotters. Soak the area with penetrating lube before trying to undo 50 y/o cotters. If you do have to drill them out, you can buy new cotter pins. I will add here to soak overnight with a penetrating lubricant. This is a general rule. Whenever I want to work on a years old fastener I add the penetrating oil and leave it for 24 hours. -- Michael Press |
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#12
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Cottered Cranks with Fixed Gear
"maxo" wrote in message
ups.com... As they say on Car Talk, "Somebody needs to make a boat payment." Other than being a bit heavy, cottered cranks are refreshingly durable, handsome, and mechanically straight-forward. Keep them--and get some slot cleated shoes and wool shorts just to spite those bike shop jagoffs. :P Only reason to replace would be if the chainring's worn, but steel/chrome rings last virtually forever. I have been using cottered Raleigh cranks for years on both my fixed gear and coaster brake rain bike. After several thousand miles on each the only problem I have is that I wore out the bottom bracket on the rain bike and am having a hard time finding a replacement spindle. The bike shop you went to is wrong on this topic but that does not make them all bad. The local shop here that gives me tremendous service on my cottered bikes is not the place I take my Campagnolo 10s for service. I am sure there are shops that do both well but I have not found one yet. Dave Reckoning Noblesville, IN |
#13
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Cottered Cranks with Fixed Gear
Werehatrack wrote: At best, unnecessarily cautious. Any concern that such cranks are sudden-failure-prone when there is reverse pressure involved is unfounded in my opinion. Amen. there is no greater example of reverse pressure than a sprinter doing a track stand. Phil Brown |
#14
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Cottered Cranks with Fixed Gear
On Wed, 09 Nov 2005 21:48:17 -0800, oh.jeff wrote:
I have recently come into posession of a 1950's Raleigh Lenton that was converted into a fixed gear somewhere around the early 80's. My LBS has given it the once over, but advised me to change the original steel cottered cranks as soon as possible, on the grounds that they would invevitably fly apart at an intersection forthwith, especially on a fixed gear bike. Horse****. How did we ever survive back in the days when millions of bikes had cottered cranks. Are the cottered cranks truly a ticking time bomb, or is the LBS being unnecessarily cautious here? Cottered cranks are a PITA to work on, since you have to drive out and replace the cotters to pull the crank arm. They don't want to be bothered, plus they want to sell you something. OTOH, aluminum cranks are a lot lighter. But there is a cool factor to the steel cranks. -- David L. Johnson __o | You will say Christ saith this and the apostles say this; but _`\(,_ | what canst thou say? -- George Fox. (_)/ (_) | |
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