Stories by Lennard Zinn

• Posted: Tue, Mar 4th
  Foot pain, cleaning that new chain and some follow-up
  A recurring painDear Lennard,I'm writing because I just read the shoe review in the VeloNews Buyer's Guide, and you mention in there that you use a custom orthotic. I was happy to see that the Shimano SH R300's I just purchased got high marks, but I am ...
• Posted: Tue, Feb 26th
  Tech Report: Milan's most enduring bike shop
  This past weekend’s trip to the Wisconsin north woods for the 35th American Birkebeiner, which for many cyclists is a festival of extreme winter cross-training, got me thinking about traditions. Being able to count on the ...
• Posted: Tue, Feb 19th
  Technical Q&A with Lennard Zinn: Switching cogsets; Carbon sizes
  One more gear? Dear Lennard, We have a 27-mile climb just outside of town that I ride up occasionally. My problem is that I tend to spin out on my way back down and find it difficult to keep up with some of my riding partners. A friend of mine told me that ...
• Posted: Tue, Feb 12th
  Technical Q&A with Lennard Zinn - Questions of standards and compatibility
  Dear Lennard,I'm confused about the BB30 design. How do they increase the spindle diameter from 24mm to 30mm and put the same sized bearings inside the BB shell? Is a larger diameter BB shell the design ...
• Posted: Tue, Feb 5th
  Tech Report: More from the SICI Symposium
  Before moving on to less important matters, I’d like to acknowledge the passing on Monday of Sheldon Brown, one of the giants of bicycle maintenance, technology and general bicycle mechanical understanding. He will be sorely missed, particularly for those seeking simple, ...
• Posted: Tue, Jan 22nd
  Technical Q&A: Clamp sizes, modifications and more
  Dear Lennard, I'm interested in buying the Deda Zero 100 stem you recently reviewed. However I noticed that the clamp size is listed as 31.7mm. The bar I wanted to use is the FSA K-Wing Carbon which has a clamp size listed as 31.8mm. Will the 0.1mm difference in size make ...
• Posted: Tue, Jan 15th
  Questions of torque
  Dear Lennard,I'd like your recommendation on a reasonable home-shop torque wrench to tighten the exotic materials I and my friends are accumulating on our bikes. I have asked at local bike shops (here in Boulder.) replied with the jaw-dropping answer that they don't bother. ...
• Posted: Wed, Jan 2nd
  Technical Q&A - Two favorite products
  Prestine PT-1756A Double Sealed Replaceable-Bearing Threadless HeadsetTHE SCOOP: You can unscrew the cups and replace the angular-contact bearingsPRO: Well-made and completely serviceableCON: None
• Posted: Tue, Dec 11th
  Tech with Italian flair
  The Milan show had a lot more to offer than I could cover in the brief column I posted last week. Here are few more items from the trade show that celebrates both the technology and style of ...
• Posted: Tue, Dec 4th
  The Milan show
  Due to having my computer stolen and losing a ton of information, photos, time and momentum, I had not yet posted anything about last month's Milan bike show. Scheduled in early November, its ...
• Posted: Tue, Nov 27th
  High-tech theft
  Much of what I do in life is collect information about bicycle technology, and earlier this month I went to the Milan bike show to do just that. But when my week-old MacBook Pro computer was stolen from me on November 7, I learned about some new technology that compromised my ...
• Posted: Tue, Nov 13th
  Tech Report: Slipstream visits the wind tunnel
  David Zabriskie is the only guy in the world who has earned a very special yellow sticker shaped like the map of France for his top tube. The sticker proclaims “Fastest Time Trial Ever: 54.676kph, David Zabriskie.” Ever since he won the 19km prologue at Noirmoutier in 2005 ...