Bikes & Tech: Page 517

Bike and gear reviews, maintenance how-tos, and tips

Technical Q&A with Lennard Zinn

Dear Lennard;I have a 2000 60cm Trek 5200 OCLV carbon fully stock bike. Notlong after I bought the bike, I noticed a periodic creaking coming fromthe bottom bracket area of the bike that usually appears when torquingon the pedals out of the saddle. I had my shop pull the bottom bracket,grease it up, and reinstall it, but it still makes the noise. I'vegotten new pedals and make sure the crank bolts are nice and tight, butthe noise is still there. My mechanic told me that OCLV frames arenotorious for this mysterious creak, and indeed I have noticed the noisedon 2 other OCLV frames (one in a guy

Technical Q&A with Lennard Zinn

Dear Lennard Zinn;It's a long sob story, but suffice it to say that I had to take apart an Ultegra STI lever to remove some debris. I almost have it completely rebuilt but for the coil spring for the big (upshift) lever. It needs to be preloaded quite a bit, and it's almost impossible to tension it and push everything together. Do you have any experience with this, or do you know someone who can do it? --Andy Dear Andy;Oooooh. I wish I had some good news for you, but I don’t. Shimano STI levers are not designed to be overhauled. Here is the response fromShimano’s Chris DiStefano:No one is

Making it work: Using a torque wrench

A torque wrench is an incredible tool. It allows you to accurately determinethe tightness of a bolt, which can reduce the likelihood of a part slippingfrom not being tightened enough as well as of breaking from being tightenedtoo much.The downside of a torque wrench is that it has a long lever arm andif you are tightening to the wrong torque spec you can tighten a lot tighterthan you could with a little hex key.When you get a torque wrench, it is necessary to get used to it. Itshould not replace your own feel for a bolt’s tightness; rather, it shouldbe supplementary to it. If you would choke

Secure Air: The Midwest, Part II

There's no doubting that beefed-up national security is a necessary evil these days. The need for stricter airport security goes in tow with the WOT (War On Terrorism)--I've got no beef with that. But like most things big, beautiful and American, our culture can have a funny (or most times, not so funny) way of taking things too far. Take, for example, my recent visit to the Midwest for a few factory visits. After setting off the metal detector at the Madison airport, I was pulled aside by security for "secondary screening." No problem, with the assortment of titanium and stainless steel

New Highs–And Lows

Funny how you go through life redefining your personal high-water marks. Your longest ride, the toughest climb, your best placing – all of these achievements are subject to improvement. On a purely personal note, I'm proud to announce a double whammy of sorts, having surpassed two new personal highs (or, in this case, I should say lows) in one fell swoop. You see, I just returned from a quick little jaunt over to our Midwestern friends in Minnesota and Wisconsin to visit with a few cycling-related manufacturers. It was on this trip that I achieved my new marks–the first being coldest

Technical Q&A with Lennard Zinn

Can you direct me to a source for a 10 speed shifter cam so that Ican convert my 9 speed record shifter?--GaryDear Gary;Any bike shop can order the 10-speed right index gear. Many distributorscarry the parts.--LennardA matter of wheel choiceDear Lennard;What is more important and under what circumstances i.e. terrain, ridertype, etc., light wheels regarding weight or heavier wheels for momentum?This has come up for our team regarding light and aero wheels i.e. HedAlps or Zipp 404 vs. Mavic Carbones and the like. Your comments would bevery interesting to us. --ChrisDear Chris;There is never a

Technical Q&A with Lennard Zinn

I have a new pair of Sidi shoes and am considering going from Lookpedals to either Campy Record Pro-Fit Plus or Shimano DuraAce SPD-SL's.Which, if either, will work better with the Sidi sole and plate? Will I need to get longer cleat bolts for either system?  Will I needto use the Sidi plate with either system?How about Sidi with Ritchey Road pedals?  (I understand the Ritcheycleat is a 2-hole SPD style.) --PhilDear Phil;For the Campy or new Shimano SPD-SL pedals, you will use the sameSidi plate you did with the Looks, and both pedals will work identicallywith that shoe as the Looks did. The

Manitou 2004 World Exclusive!–Almost

BLACK OUT -vi- 1: to become enveloped in darkness; specif: black out date: A set date at which exclusive press release information can be released to the public;specif: utilized to protect current inventory from abandonment in premature anticipation of the next model year;see also: screwing the manufacturer over and killing bike shop sales. While not one to complain about the goings-on at other cycling publications, I'm about to (briefly). Two weeks ago Manitou presented the media with a sneak-peek at its 2004 product line which we lightly reported on, but I adhered to the requested black

Round Ball Round-up

Wow, it's been a whirlwind of activity around here. I won't bore you with the down-and-dirty details of trying to push our 2003 Buyer's Guide out the door (I'm beginning to think of it as one of those drunk party guests that refuses to leave your house at 3:30 a.m. when everyone else has split). Instead let's stick to the part where I tell you how I just got back in from a weekend of riding with the Manitou boys down in sunny Phoenix, Arizona. Perfect timing to sneak away from the near zero cold snap that had Boulder firmly in its grasp. Unlike most manufacturers, Manitou chooses to show

Technical Q&A with Lennard Zinn

I have a question regarding race radios. We have an elite/pro Canadian team that we are just starting up. I have been doing a bunch of research on which race radios are the best for use for our team. I find it strange how little information I can find on this topic. We have tested a few different options and we seem to be coming up short in our quest for a good solution. We have tried the Motorola FRS type radios - they only work when our riders are very close together. If we have one guy up the road they fail miserably. We then tried more robust, higher power radios, which had a better range