Bikes and Tech: Page 524

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

Technical FAQ with Lennard Zinn: Rim weight and slipping seatposts

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

High-fiber diet: Carbon rules the house at Milan show

The 60th annual Milan International Bicycle Show fulfilled expectations of beautiful Italian designs in bicycles, components and soft goods. It also exceeded expectations of visitor interest. The aisles were constantly packed with passionate Italian cyclists who could not help but caress thecolorful two-wheeled creations in the booths. In general, the Italian show is better at showing off whatever is cool about our sport than other shows, and the visitors respond to it. There was even an entire hall devoted to road racing – including mass-participation Gran Fondo races. Paradigm-shattering

Cannondale Announces 2003 Line

Building on the success of its single-pivot, light, but burly 2002 Gemini freeride models, Cannondale is adding a third Gemini model for 2003, the Gemini 900 (with Manitou Breakout, Fox Vanilla RC, Hayes HFX-9 w/8" rotor). This OnePointFive Standard-equipped bomber uses the same frame technology as last year's Gemini, but takes the entry-level price down from $2,975 last year down to $2,199.The Jekyll line, which offers adjustable full-suspension and all-mountain performance, has also been re-engineered. For ’03, the Jekyll’s maximum rear wheel travel increases from 115 mm to 135mm, and is

Mavic Goes Single-Sided

While those racers who own "tradtional" cross country forks will be able to benefit from Mavic's new hyperlight 2003 CrossMax SL Disc wheelset, Cannondale Lefty owners have been left out in the cold. That is, until now. Mavic just announced development of a Lefty-specific 750 gram CrossMax SL Disc front wheel. According to Mavic, "The Crossmax SL Disc is a concentrate of Mavic know-how and features technology such as the Fore concept, which provides a sealed rim and added strength, ISM (inter-spoke milling) which reduces inertia and rim weight (30-40g), a Maxtal rim for strength and

Technical FAQ with Lennard Zinn: That ticking could be your seatpost

VeloNews technical writer Lennard Zinn is a frame builder, a formerU.S. national team rider and author of several books on bikes and bikemaintenance. This is Zinn's 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 toZinn. We'll try to print a representative sample of questions regularly.Question: One of my riding partners had a ticking (not a creak)sound in his ride.  It would only happen when pedaling

First Try: We try out the new Dura-Ace pedal

It's no secret that Lance Armstrong never used Shimano's SPD-R system. He rode what he liked and those were his old Look-compatible Shimanos. After three successive Tour de France wins, the Japanese manufacturer finally decided it had enough of watching its decade old equipment bring Armstrong to the podium and set out to build a pedal Lance would approve of. It looks like the new design got the nod of approval: Armstrong has kept them on his bike since spring. The svelte 276-gram/pair (plus 60 grams for the cleats, screws and washers) pedals are the fruit of their radical redesign labor.

First look: New XTR tubeless wheelset

While we thought 2003 couldn't get any brighter for Shimano and its highly redefined XTR group, the Japanese manufacturer surprised us again this morning with the announcement that it would be producing its first XTR-level wheelset. Sources report the wheelset should go for around $850 and be available about the same time as the component group (around January, 2003.) Vital stats include: total wheelset weight of 1650 grams, both 24 spoke count in a paired lateral crossover pattern and, most significantly, are both tubeless and traditional-tire compatible. Although the wheels were not

Marin Introduces New Suspension Design

Marin Bikes just announced the launch of its patented Quad technology which will be featured on the company's XC full suspension bikes. The Quad was developed with chief designer John Whyte, an ex-Formula One engineer and cycling enthusiast. The Quad, named for its four-bar linkage system, four inches of rear wheel travel and quadratic wheel path equation will be available in four models including the East Peak, Rift Zone, Mount Vision and Mount Vision Pro. According to Marin, the Quad suspension design is a four-bar linkage system with a patented Intelligent Pivot (i.e. similar to VPP

ONCE and future kings and broken bars

So why did ONCE go so fast on Wednesday? Was it because the team pedaled harder and stayed in better formation and had good equipment? Well, that is one explanation. Another is that all of the other teams only had nine riders, while they had ONCE (Spanish for “eleven”)! Sorry... I had to throw that in. Beyond the numbers, it is worth noting that the teams that go fastest have 100 percent of the riders wearing aero helmets, rather than a mixture of headgear and even of clothing and equipment. You also tend to see other riders on fast teams using their aero’ bars further back in the line,

Technical FAQ with Lennard Zinn: Follow up for shimmy on 853 Lemond

VeloNews technical writer Lennard Zinn is a frame builder, a formerU.S. national team rider and author of several books on bikes and bikemaintenance. This is Zinn's weekly VeloNews.com column devoted to addressingreaders' technical questions about bikes, their care and feeding and howwe as riders can use them as comfortably and efficiently as possible. Readerscan send brief technical questions directlyto Zinn. We'll try to print a representative sample of questions ineach column.Follow-up from previous discussions:There was plenty of input from readers on the subject of mixing