'Now we've passed that test, the world of cycling is open.' – Gravaa and Scope pack ambition after breakout ride through 'Hell of the North.'
Technical FAQ: Chain optimization for recreational riders; pressurizing tires; denatured alcohol in California
In this week's Technical FAQ, Lennard Zinn answers questions on tire pressure and chain optimization.
Paris-Roubaix glove and bar-tape strategies: Normal, double, or none? A WorldTour mechanic weighs in
‘For more cushioning, double wrap the bar tape. But another approach is to ride without gloves and even without handlebar tape,’ says WorldTour mechanic Raf Wittenberg.
Also: how to tackle mystery flats and freehub body swaps, and a follow-up on tubeless wheels and maximum inflation pressures.
These gravel and MTB wheelsets have a pump in the hub to inflate and deflate tyre pressure at the touch of a button.
VeloNews technical expert discusses tire pressure changes while riding.
Words of wisdom from Shimano's Nick Legan, and race context from me.
VeloNews technical expert Lennard Zinn answers your questions about mechanical issues and bike geometry and handling.
Check out James Huang's author page.
Digging into the science of tire selection and tire pressure
Check out James Huang's author page.
Our tech editor answers questions on bottom bracket height, pressure gauges, budget wheel choices and balancing your hoops
Lennard shows why it’s important to be mindful when cleaning your tires on the run and recommends tires for big guys
Also: Reducing tire pressure in the rain and tire pressure warning systems
Lennard takes Q's on aging tubulars, tubeless tire maintenance, tire pump gauge accuracy and more.
A world renowned procrastinator, Lennard Zinn offers up some cool ideas for last-minute gifts for the bike geeks on your list.
Former ProTour mechanic Nick Legan takes questions about tire pressure, mechanics' advice, lightweight race bikes and more.
Former ProTour mechanic Nick Legan takes questions about torque wrench use, winter bike maintenance and stiff 'cross frames.
Lennard Zinn takes a look at some new products for the installation, removal and inflation of tires, plus a quick look at new wheels for wider (read cyclocross) tires, from HED and Mondo.
Readers wonder about pumping tires to proper pressure ... and keeping it that way.
Chipped clear-coat, tire blow-outs and more; Zinn fields question on a host of common issues encountered by riders.
Lennard Zinn's readers weigh in on ways to choose, fix and maintain tires and those super-narrow 11-speed chains.
Why would changing a tire on a Zipp 530 be so difficult? I beat my fingers and snap tire levers trying to get a tire off.
Steve Dear Steve,
It’s a good question, but one I thought might be best answered by the folks at Zipp.
I have received so much mail about the " tubulars vs. clinchers rolling resistance debate that I could not resist running some of the better ones. The debate may never end, but your letter sure have raised a lot of issues that I’d never considered.
Tubes, tubulars or NoTubes?
I'm currently running Campy 10-speed and am interested in running Hutchinson Tubeless Tires. It appears that the only officially approved system is the Shimano Dura-Ace wheelset, which is obviously not an option for me. My question is will a wheelset with rims that do not have pierced spoke holes on the interior (like the Mavic Ksyrium SL, Campy Shamal Ultra or Fulcrum Racing Zero) suffice and is there anything special that has to be done to make them work?
Most of today's column is devoted to a selection of the many, many interesting letters I got in response to my June 26 column, addressing the many factors that add to - or reduce – rolling resistance.
Dear readers,I’ve been wanting to write about rolling resistance for years, and I’ve had ongoing e-mail conversations with a number of you on the subject. Indeed, I’ve built up enough of it to compile a collection of some of the most interesting.Lennard WaterDear Lennard,As I was riding though an unexpected rainstorm, I noticed that, even with the rain, it seemed to take less effort to ride on the wet road than when it is dry (all other things – especially wind and temperature – being constant). I know that there is less friction when it comes time to stop or to turn. Could it be possible
Keeping important parts comfyDear Lennard,This isn't a nuts and bolts question, but I thought you might shedsome light on this subject. Most roadies I know (including myself) preferto wear bib shorts with leg warmers instead of tights in cold weather.I can't understand why nobody makes a short with a windproof panel in thesensitive chamois region. Surely I'm not the first to think of this.JayDear Jay,Good question! No, you are certainly not the first to wonder this!Here are somewhat contradictory answers from De Marchi and from Sportful,which also owns Castelli.From De MarchiDear Lennard,The
Dear Lennard Zinn;Is it true that the Zipp clincher 404/303s will break up when tire pressure exceeds 140? --JV Dear JV;Below is a long answer to your question, but it is worth reading, as it addresses, in addition to the specific Zipp question, the general question many of us have about how much pressure a clincher rim can handle.--Lennard Answer from ZippDear Lennard and JV;In short, no, a ZIPP 303 or 404 clincher will not break up when tire pressure exceeds 140psi. The source of this concern may stem from one or both of two sources: either from the Maximum psi sticker ZIPP now applies to