Bikes and Tech: Page 520

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

Tech Tuesday: XTR feedback

With the Holidays behind us it's officially Buyer's Guide season around here and we're working fast-and-furious to produce the most interesting guide you've ever flipped through. Whether you're in the market for a new bike or not, we've planned plenty of engaging copy to pique your interest in the latest product trends in bicycles, wheels, forks, stems, handlebars and a few other critical categories. But unlike any other bike-related Buyer's Guide that has been produced, ours isn't designed to denigrate your intelligence with features such as: "How to buy your

Technical FAQ with Lennard Zinn: Finding the right position

That sweet position on your road bike should be as comfortable as your favorite pair of slippers — and once you find it, you won’t want to give it up. But discovering the perfect position in the first place often requires many tiny adjustments in the height and reach of your handlebar to get it right. In the current issue of VeloNews, technical writer Lennard Zinn helps you work through the steps necessary to find that perfect position. As mentioned in the article, Alan Hills of Hills-Scientific.com in Boulder, Colorado, has shared a handy program he designed to choose the stems for his

More from Italy and the Front Range of Colorado

Transplanted from California less than a year ago (there, it's official, everyone in Colorado can now hate me) the guys here at the office say the winter has been unusually mild. My early morning frozen water bottles and icy trails might disagree, but hey, at least we're out there and not relegated to the trainer (like I was told I would be before moving out here). Weather aside, the racing/product seasons are right around the corner and we're gearing-up for some pretty hectic travel schedules. For racing coverage, Jason's off to Malaysia, Charles is heading over 'cross

Technical FAQ with Lennard Zinn: Crank length

Dear readers;I get a lot of questions about cranks – crank lengths, non-standardcranks, compatibility, etc., so I thought I’d just combine a number ofthem here.  --LennardDear Lennard;I would like to read your comments or opinions on a product calledPowerCranks (see at Powercranks.com). I would like to buy a pair to improvemy technique. Thanks for your help. --HeltonDear Helton;PowerCranks are cranks with a clutch bearing at the bottom-bracketconnection in order to only engage the bottom bracket in the forward direction.You can only keep them turning if you pull up and around the entire

Technical FAQ with Lennard Zinn: Removing a stuck seatpost

A question that I receive often through my "Tech Q&A" column on thissite is how one should remove a seatpost that is stuck in a frame. Ratherthan answer each one, I can simply reprint the section from Chapter 10of "Zinn and the Art of Mountain Bike Maintenance" that touches on thatvery subject.Removing a seatpost that has frustrated all normal methods of removingit is a difficult job requiring lots of attention and skill because ofthe risk involved. This may be a job best done by a shop, because if youmake a mistake you run the risk of destroying your frame. If you’re not100-percent confident

Technical Q&A with Lennard Zinn

Dear Lennard ZinnI'm 50 and have arthritis in my left hip. I've been riding a pretty laid-back road bike for years (A LeMond with a 72.5 seat angle, seat all the way back)I do Yoga regularly, and that has helped, but my hips ache when I ride. I’m wondering if sitting further back might be "working" my hips more. The second part is that I have another frame I could have built up, but it's radically different: 73.5 seat, 40.5 stays. The front end is almost the same as the LeMond. Both bikes are steel, the other frame is 753. I'm 6'2" and weigh240. Some people have said the shorter bike would

Italian extravaganza with a little Colorado twist

Well, things are certainly back up-to-speed here at the magazine after the holidays. I hope you had a good one. You'll be glad to know that even though we're all a little teary-eyed over Jeremy "Showtime" McGrath's sudden retirement, we're still focused on getting another issue out the door. It's NORBA's 20th anniversary and in the spirit of celebrating, we're working on a pretty interesting feature piece highlighting the highs (and some lows) of the governing body of mountain biking.Personally, I'm working on a few techy pieces that highlight just how far technology has come in the past 20

Technical Q&A with Lennard Zinn

Dear Lennard Zinn; My right foot (third and fourth toes especially) goes to sleep after only a short time on the bike (10-15 minutes).  I've had the problem for quite a while, but just got new shoes (with plenty of toe room) and it's back - these shoes are stiffer than my others too.  If I stand or unclip for a few seconds it helps, but comes right back.  I use the same MTB shoes for road and MTB riding (recreational) - the problem is worse on the road.  What can I do to help?  --JeffAnswer: It sounds like perhaps you need custom orthotics. I have a similar problem, which in my case was

Technical Q&A with Lennard Zinn – The aerodynamics of drafting

Dear Lennard Zinn;Everyone knows you don't have to work as hard if you're drafting off the person in front of you. How does your work effort change if someone is drafting behind you?Here is why I ask: I always thought that if you were riding by yourself, then you had to work harder than if somebody was drafting behind you because as you move through the air, it flows past your bike and body and creates turbulence as it swirls around in the void of space behind you. This almost creates a suction behind you pulling you back against your forward progress (if my logic is correct).

Making it work: Campagnolo’s new 10-speed chain

One of the more frequent questions I get on my “Tech Q&A" column is why Campagnolo changed its 10-speed chain and eliminated the PermaLink and, therefore, the tool to install it, now requiring the purchase of a different chain tool. In late July, I visited Campagnolo in Vicenza, Italy, and I got the answer to this question directly from Mario Meggiolan, the engineer who designed the new chain tool as well as the carbon Hyperon wheel. Campagnolo first supplied the PermaLink with 10-speed chains because that was the best way it could see at the time to make such a narrow chain strong enough.