Technical FAQ: Page 65

Bike Tips and Maintenance with Lennard Zinn

Technical FAQ with Lennard Zinn: Shimmy testing and fixing tips

VeloNews technical writer Lennard Zinn is a frame builder, a formerU.S. national team rider and author of several books on bikes and bikemantenance. This is the third of Zinn's weekly VeloNews.com column devotedto addressing readers' technical questions about bikes, their care andfeeding and how we as riders can use them as comfortably and efficientlyas possible. Readers can send brief technical questions directlyto Zinn. We'll try to print a representative sample of questions eachThursday.First, some follow-up from our last columnA few more reader comments on the creaking bottom bracket

Technical FAQ with Lennard Zinn: Where to buy custom stems

VeloNews technical writer Lennard Zinn is a frame builder,a former U.S. national team rider and author of several books on bikesand bike maintenance. This is the second of Zinn's weekly VeloNews.comcolumns devoted to addressing readers' technical questions about bikes,their care and feeding and how we as riders can use them as comfortablyand efficiently as possible. Readers can send brief technical questionsdirectly to Zinn. We'll try to printa representative sample of questions each Thursday. First, some follow-up from last week Lastweek there were a couple of questions that encouraged an

Technical FAQ with Lennard Zinn: Custom crank option for leg-lentgh discrepancy

VeloNews technical writer Lennard Zinn is a frame builder, a formerU.S. national team rider and author of several books on bikes and bikemantenance. This marks the beginning of Zinn's weekly VeloNews.com columndevoted to addressing readers' technical questions about bikes, their careand feeding and how we as riders can use them as comfortably and efficientlyas possible. Readers can send brief technical questions directlyto Zinn. We'll try to print a representative sample of questions eachThursday.Question: Do you have any advice for correcting leg lengthdiscrepancies?  I have undergone an

Technical FAQ with Lennard Zinn: Ullrich’s superlight ride (updated text)

Jan Ullrich has done everything he can to lose weight off of his body. He and his mechanics have also gone to extraordinary lengths to take a full kilogram off of the bike he uses in the mountains. The big German also has some particular preferences about his components, and his mechanics and suppliers clearly bend over backward to accommodate them. Ullrich’s climbing frame is a lighter version of his Pinarello Prince. It appears to have standard Prince carbon fork and seatstay wishbone, but the aluminum main tubes have thinner walls, and the down tube is smaller diameter. As his climbing

Technical FAQ with Lennard Zinn: U.S. Postal team Treks

There are four different colors of Treks you will see U.S. Postal racing on in the Tour. These are two different road bikes and two different time trial bikes. The two road frames you can buy, and there is no difference between them and models sold in bike shops. The two time trial frames are strictly team issue. This use of stock frames is unique at that level of racing. Almost all top riders have frames custom built especially for them, often by a manufacturer other than the one whose name is on the frame. In fact, Trek claims that Lance Armstrong's two Tour victories were the only ones