Technical FAQ: Page 64

Bike Tips and Maintenance with Lennard Zinn

Technical FAQ with Lennard Zinn: Champion’s footsteps

Russel Bollig’s path to Lance Armstrong’s feet began with Tyler Hamilton,for whom he first built some custom orthotics in 1992. About four yearsago, Christian Vande Velde got some as well. They passed the word on toArmstrong, who was looking for an improved fit in his cycling shoes, andafter the 2001 season Bollig went to Austin, Texas, to fit the three-timeTour champion. While at Armstrong’s home, Bollig used resin-filled casting socks tomake casts of Armstrong’s feet and ankles. Then, back at his Podium Footwearshop in Boulder, Colorado, he made plaster duplicates of Armstrong’s feetfrom

Technical FAQ with Lennard Zinn: Koski Stronghold Deluxe mountain-bike stem

Features: The Koski Stronghold Deluxe is a forged hollow stemof 6061-T6 aluminum with a four-bolt polished silver front plate. The shaftis matte black.The Stronghold Deluxe stem is available in two finishes, called “shotpeened black” and “polished silver,” two angles, namely 7 and 15 degrees,and five lengths: 60, 75, 95, 110 and 130mm.All of the bolts take a 5mm hex key.Likes: This is a handsome and lightweight stem available in lotsof finishes, angles and lengths. It is plenty stiff, and it has a largeclamping area with the bar (these two features are probably interrelated).Dislikes:

Technical FAQ with Lennard Zinn: Deda Mag00 road stem

Features: The Mag00 is a superlight magnesium stem for an oversized31.7mm handlebar diameter. It is machined from AZ 80 A, T5 temper magnesium,under a controlled inert-gas atmosphere and immediately coated afterwardsto prevent the oxidation and consequent weakening of the magnesium.The four-bolt front cap is made of carbon fiber with, according to Deda,the fibers oriented along the lines of force. All bolts are 6/4 titaniumfor a 4mm hex key.The Mag 00 comes in an 80-degree angle with lengths of 90, 100, 110,120, 130 and 140mm.Likes: The stem is extremely light while being adequately stiff.I

Technical FAQ with Lennard Zinn: Deda Newton mountain-bike stem

Features: The matte-black Deda Newton is machined from 2024 T6aluminum. The silver front cap is held on with four titanium bolts, which,like the fork-steerer clamp, accept a 4mm hex key.The Newton comes in 90- and 95-degree angles in lengths of 105, 115and 125mm. The Deda N’Bar matches it in graphics and quality.Likes: Like the Newton road stem, this is a strong, superlightstem, and I find it to be adequately stiff.Dislikes: Not a one.Other: You have to very careful not to over-torque the smallbolts.The Deda single-bend bars, namely the N’Bar and BarOne, come only inthe relatively short 560mm

Technical FAQ: Shimmy

Does increased fork rake or rider position affect high-speed shimmy?