rims

Technical writer Lennard Zinn continues to look at wider rims and tires and their grip while cornering

WTB has forged a reputation for producing straightforward and practical designs that work. The Frequency i23 rims are no exception.

Nick Legan answers reader questions on replacing worn rims, a unique chain holder for bike washing and aero whiskers

Also: draining water from rims

Also: seating tubeless, CDI torque wrenches and wider road rims

Mavic has vastly improved XC, trail and all-mountain sets in their venerable Crossmax line.

The Blunt SL builds off the proven P35 and Blunt rims — in 650b, too.

Singletrack.com's resident wrench, Lennard Zinn, has a word to the wise: If you're buying superlight disc-brake wheels, DO NOT inflate to the rated pressure on the side of the tire.

Readers seek advice on storing and reusing tires and getting that gunk off of tubular rims.

Old-school rims at Paris-RoubaixDear Lennard,I noticed that all the teams for Paris-Roubaix used old-school tubular rims for the race. How come they don't use the fancy composite tall rims as they do during the rest of the season? Did it have to do with their stopping power in the dry, dusty conditions or the punishment of the cobbles?Peter Dear Peter,Both. Carbon rims, especially deep-section ones, are so much stiffer that they are likely to crack rather than flex and bend like an aluminum rim would. In a crash, jagged carbon edges are worse than bent aluminum. And of course,

VeloNews technical writer Lennard Zinn is a frame builder, a former U.S.national team rider and author of several books on bikes and bike maintenance.This is Zinn's regular VeloNews.com column devoted to addressing readers'technical questions about bikes, their care and feeding and how we as riderscan use them as comfortably and efficiently as possible. Readers can sendbrief technical questions directly to Zinn. We'll try to print a representativesample of questions regularly.First, some follow-up from previous columns:Comment on rim weight:Froma July, 2002 column,"As an aside- the old wheels

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