Woofie Posted July 20, 2009 Share I have a set of Rolf Dolomite MTB rims. I think some of the spokes on the rear wheel were overtightened and over time the rim has started showing hairline cracks around two of the nipples. Is there anyway to fix this? I have looked at getting a replacement 20 spoke V brake rim but I havent found anything at all. Anyone? Link to comment Share on other sites More sharing options...
Racer X Posted July 20, 2009 Share I was about to suggest aqueous cream Link to comment Share on other sites More sharing options...
Captain Slow Posted July 20, 2009 Share Use Johnson & Johnson's Nipple Cream!! Apply twice a day and you are sorted!! Link to comment Share on other sites More sharing options...
Racer X Posted July 20, 2009 Share Johan better come and comment, personally If I had a hairline crack in a rim I would retire it. Best post a pic so we can see the extent of the damage. Link to comment Share on other sites More sharing options...
fandacious Posted July 20, 2009 Share where is thelegend when you need him.... Link to comment Share on other sites More sharing options...
Weekend_Warrior Posted July 20, 2009 Share Link to comment Share on other sites More sharing options...
Woofie Posted July 20, 2009 Share Use Johnson & Johnson's Nipple Cream!!Apply twice a day and you are sorted!! You guys are worrying me now! If you arent breastfeeding you shouldnt know what to do! I will try and take some pics later on. Otherwise - anybody want to buy a wheelset? Link to comment Share on other sites More sharing options...
AndreZA Posted July 20, 2009 Share JB is gonna tell you to toss the rims and have them rebuild with new ones. Link to comment Share on other sites More sharing options...
Johan Bornman Posted July 20, 2009 Share Toss the rims and rebuild with new ones. Link to comment Share on other sites More sharing options...
Mackie Posted July 20, 2009 Share Do you know a good wheelbuilder for Woofie?Toss the rims and rebuild with new ones. Link to comment Share on other sites More sharing options...
Johan Bornman Posted July 20, 2009 Share I have a set of Rolf Dolomite MTB rims. I think some of the spokes on the rear wheel were overtightened and over time the rim has started showing hairline cracks around two of the nipples. Is there anyway to fix this? I have looked at getting a replacement 20 spoke V brake rim but I havent found anything at all. Anyone? You are about to discover the joys of standard wheels using standard rims, spokes and nipples, built on Shimano SLX or XT hubs. Your Dolomite/Shlolomites are behind you, look forward. You won't find 20-hole MTB V-brake rims anywhere, and if you do, you'll have to change the spokes to accommodate the new rims. It's not worth it. Bite the bullet and have yourself a set of standard wheels made up that can be fixed by anyone, in any province, using freely-available parts. Link to comment Share on other sites More sharing options...
Johan Bornman Posted July 20, 2009 Share Oh, and finally, the nipples didn't crack, the rim cracked. The rim cracked not because it was tensioned too much, but because it was made from a material too weak for the job. A 20-spoke wheel needs to be highly-tensioned in order to stay true and paired with a crappy, anodised rim, you have a recipe for wheels that live as long as a mayfly. The rims cracked from metal fatigue - if a few nipples were too tight, the wheel would not have been true. The nipples were therefore all of equal tension. With a 32-spoke wheel you have (32-20)/20 times less cyclical fatigue. In other words, all things being equal, a 32-spoke wheel will last .6 times longer than a 20-spoke wheel. In practice it is much more than that since the overlay of static force (spoke tension) on top of cyclical tension (as the wheel rolls), fatigues the rims more than the 0.6 advantage. The short version: toss the rims and start over. Link to comment Share on other sites More sharing options...
Woofie Posted July 20, 2009 Share Thanks I do have a second set of rims, but the rolfs were super duper light! Would anyone still want the hubs for anything? Link to comment Share on other sites More sharing options...
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