tag:blogger.com,1999:blog-2523357558654725888.post6783383704828658401..comments2024-01-05T11:00:30.673-06:00Comments on DFW Point-to-Point: Carbon CorrosionSteve Ahttp://www.blogger.com/profile/13650405341304401203noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-2523357558654725888.post-56757581015799172192010-03-29T21:45:05.336-05:002010-03-29T21:45:05.336-05:00When this series is all over, I'll take your b...When this series is all over, I'll take your bikes in trade in exchange for ancient Schwinn Varsities if you wish. Seriously, remember that bikes of every possible material have been failing since long before our grandparents grew up. As for this chapter, clean and dry maximizes life. Wet and dirty and salty next to the pool chlorine tablet bucket will NOT.Steve Ahttps://www.blogger.com/profile/13650405341304401203noreply@blogger.comtag:blogger.com,1999:blog-2523357558654725888.post-75917010783868630252010-03-29T20:44:46.483-05:002010-03-29T20:44:46.483-05:00Thanks Steve for that link. That's the exact ...Thanks Steve for that link. That's the exact fork I have.<br /><br />Pinarovo, watch out for powder post beetles!Big Oakhttps://www.blogger.com/profile/06713190395281794960noreply@blogger.comtag:blogger.com,1999:blog-2523357558654725888.post-28155476248668650172010-03-29T13:46:49.354-05:002010-03-29T13:46:49.354-05:00My mountain bike is totally done for (don't th...My mountain bike is totally done for (don't think I've ever washed the mud off). But apparently I'm set, carbon seatpost in the carbon bike, aluminum seatposts in the aluminum bikes.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2523357558654725888.post-18639632865676626942010-03-29T07:24:19.446-05:002010-03-29T07:24:19.446-05:00True, but at least that rapid oxidation can be sto...True, but at least that rapid oxidation can be stopped. Get a magnesium frame burning and it isn't so easy.Pinarovonoreply@blogger.comtag:blogger.com,1999:blog-2523357558654725888.post-80623900034538312722010-03-28T23:41:02.098-05:002010-03-28T23:41:02.098-05:00PInarovo, Wood is lovely, but you have not yet hea...PInarovo, Wood is lovely, but you have not yet heard about composites in the sun. I will be sure not to omit wood! Actually, wood has it's own corrosion problem in that it can oxidize very rapidly at relatively low temperatures. Often referred to as "burning."Steve Ahttps://www.blogger.com/profile/13650405341304401203noreply@blogger.comtag:blogger.com,1999:blog-2523357558654725888.post-77035221605768545852010-03-28T21:22:39.594-05:002010-03-28T21:22:39.594-05:00Good to see the material for my bike frame isn'...Good to see the material for my bike frame isn't on your list: wood. Although it does have aluminium inserts for the headset and seat tube. It does look stunning when waxed!PInarovonoreply@blogger.comtag:blogger.com,1999:blog-2523357558654725888.post-17565557119093522382010-03-28T20:12:09.845-05:002010-03-28T20:12:09.845-05:00Big Oak, the photo at the link below might have be...Big Oak, the photo at the link below might have been a corrosion-related aluminum failure. It's tough to really tell from the picture, but it does look sorta powdery white in it. Maybe he stored his Tricross out in the garage...<br /><br />http://www.bustedcarbon.com/2009/09/specialized-tri-cross.html<br /><br />My own Tricross is more than a year old and I have not used it gently. While I only did one cross race, I have put well over 4000 miles on it, so it doesn't seem to be an aluminum fatigue thing. Hey, Ham got nervous from a previous carbon post. Looks like it's moving around the circle.<br /><br />Really, if corrosion was a serious problem in well maintained Tricrosses, there'd be serious recall action going on. Still, it WILL last longer if you keep it looking purty.Steve Ahttps://www.blogger.com/profile/13650405341304401203noreply@blogger.comtag:blogger.com,1999:blog-2523357558654725888.post-69104424736098454552010-03-28T19:18:14.459-05:002010-03-28T19:18:14.459-05:00Huh. I was feeling pretty good about my Tricross ...Huh. I was feeling pretty good about my Tricross until now. Guess I better clean it off more regularly.Big Oakhttps://www.blogger.com/profile/06713190395281794960noreply@blogger.comtag:blogger.com,1999:blog-2523357558654725888.post-20685614905243526982010-03-28T17:48:18.320-05:002010-03-28T17:48:18.320-05:00Just keep it clean and dry. You weren't really...Just keep it clean and dry. You weren't really planning to leave that expensive carbon bike out in the rain for the winter anyway. It would not have time for the metal bits to corrode because the thieves would have it in THEIR clean and dry locale.<br /><br />As for the fork ends, titanium or good stainless would be pretty resistant to rot. Aluminum would also work fine if galvanically isolated by the manufacturer as part of the bonding process. In truth, if the adhesive had a carrier, THAT would probably be enough to isolate the two materials unless you decided to dunk the fork in a tank of salt water for a current generation test. I do NOT think that Trek would warranty such a test.<br /><br />You can actually try this as an experiment and generate your own carbon blog post that I will read with interest. Fill a small bowl with salt water. Drop an aluminum foil piece in and watch it over the next couple of weeks. Repeat the process with a hunk of carbon in there in close proximity to the aluminum. Report the results.Steve Ahttps://www.blogger.com/profile/13650405341304401203noreply@blogger.comtag:blogger.com,1999:blog-2523357558654725888.post-63096340038398736802010-03-28T16:47:24.455-05:002010-03-28T16:47:24.455-05:00So let me get this right - carbon frame + carbon s...So let me get this right - carbon frame + carbon seatpost = good. But there is a clamp on top of the seatpost and, the dropouts at the end of the fork and seat stays..... [gulp]<br /><br />Still, I have to say I've not heard of that being a problem, so I won't start to worry too much. <br /><br />Learning that carbon/alu had galvanic action amazed me - I would have thought the resin acted as an insulator.Hamhttps://www.blogger.com/profile/17182921009517833997noreply@blogger.com