Lennard Zinn

Interbike tech: Lennard Zinn explains the new Campagnolo groups and gives a hint of the company's upcoming cyclocross group.

A reader wonders whether cyclocross tubulars have an inherent weight limit, or if bigger riders can also take advantage of the benefits of the best tire choice

Readers ask bike guru Lennard Zinn about running a new suspension fork on a 15-year-old bike as well as an  external  bottom bracket on an even older rig.

Lennard takes some more questions about cyclocross brake shudder, tire choice and sealant.

Lennard Zinn takes a new look at the old problem of brake chatter in cyclocross.

Even more solutions for cyclists plagued by mystery noises on their rides.

Cannondale's cross-country racing bikes and forks spoiled Singletrack.com ridden-it-all tech guru Lennard Zinn. That's pretty hard to do. Find out how Cannondale did it…

Lennard Zinn fields questions about the need for headset top caps and why shortened seatposts don't creak, and shares another long list of potential sources for bicycle mystery noises.

Lennard Zinn, Singletrack.com's master technician, answers readers' questions. This week, the need to bleed (brakes); seat angles; and Dyna-Sys XT.

A reader makes a minor change to his drivetrain and experiences a whole new set of problems. Is there a simple solution? Lennard Zinn thinks so.

There is a backstory to everything, and pioneering clothing company DeFeet is no exception. Singletrack.com's Lennard Zinn gets to the base of the company's success.

DeFeet isn't just about the feet. The company's made light, strong base layers for years, and its latest is a marvel.

Speedplay pedal founder Richard Bryne has stuck with his original road design through thick and thin, but a new prototype for off-road has been in the field for some time.

What does Singletrack.com's resident bike guru Lennard Zinn think of Cannondale's re-worked Jekyll? The answer is in the unique new Fox DYAD RT2 shock.

A tall reader asks why tall bikes often just look — and ride — so wrong.

Lennard rode the Look Cyclosportive in Nevers, France, and saw Bernard Hinault pedaling a football!

Lennard Zinn gets a heads up from a reader about some earlier advice.

Lennard rides the Plan de Corones, with 13 dead Giro champions as company.

Lennard Zinn rode the Giro's Monte Zoncolan and reports he used every bit of his 34X26 low gear.

If you've tried everything to remove that stuck seatpost and it's still not budging? Master mechanic Lennard Zinn has a few more suggestions.

Singletrack.com's resident-wrench, Lennard Zinn, has a full mailbag this week: Readers want to know about SRAM XX and lubin' various things up.

A reader asks about possible fork damage after a close encounter of the low clearance kind.

FSA has introduced a whole range of 10-speed-compatible mountain bike cranks, both in double and triple configurations, to mesh with the new SRAM and Shimano drivetrains.

As the Sea Otter Classic is "Powered by SRAM," the Chicago company uses the event each year to introduce its new products. Lennard Zinn brings them to you here.

Singletrack.com's resident wrench Lennard Zinn helps explain the different bottom bracket standards to a confused reader.

If moderate heat doesn't pose a problem for carbon fiber, how about cold and big temperature fluctuations?

Lennard talks to a reader skeptical that lower tire pressure could improve rolling resistance

A reader wants to like 29ers, but found that he was "underwhelmed" by the big wheels. He asks Singletrack.com's tech guru Lennard Zinn if he's missing something.

Chipped clear-coat, tire blow-outs and more; Zinn fields question on a host of common issues encountered by riders.

Singletrack.com's master mechanic Lennard Zinn shows how to get your rig ready to roll for some spring riding.

A reader asks whether the heat of a closed car or exposure to direct sunlight can damage a carbon frame.

Lennard Zinn's readers weigh in on ways to choose, fix and maintain tires and those super-narrow 11-speed chains.

A reader is concerned concerned about not making things worse by washing out lubricants or by washing dirt into bearings, or overlubing. Singletrack.com's mechanical master, Lennard Zinn, has some pointers.

Lennard Zinn suggests you avoid removing 11-speed chains for maintenance. Clean and re-lube on the bike.

Want to convert your geared bike to a more simple singlespeed? Singletrack.com's Lennard Zinn offers a few pointers.

Master mechanic Lennard Zinn follows up on questions regarding hanging bike storage and what that means for hydraulic brakes.

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

Lennard attends the Park Tool Summit and returns with tips for garage mechanics.

Lennard Zinn reports back from the 2010 Park Tool Tech Summit with tips for those about to wrench their rigs.

Is there a right or wrong way to hang a full-suspension bike? Singletrack.com's resident wrench Lennard Zinn has the answer.

A cracked or broken carbon frame can be fixed. Lennard Zinn checks in with Craig Calfee's repair shop.

A reader asks Singletrack.com's tech expert Lennard Zinn if there is a way to go from three to two chainrings simply and inexpensively.

Readers offer feedback on the subject of latex tubes and high-speed blow-outs.

If you're using tires and tubes, there are steps you can take to prevent those dangerous and frightening blow-outs on steep descents.

Singletrack.com's resident wrench says tire sealants fall into two categories. Find out what might work best for you. Also, check out the video on how to install a tubeless system.

With redesigned ErgoPower levers, a reader wonders about keeping the small brass cable stop in its place. LZ also touches on why Campagnolo isn't as big in cyclocross as you might expect.

From Slime to Stan's, LZ examines sealant options for road and cyclocross tires

A reader just bought a $5,000 bike and something ain't right. Singletrack.com's resident wrench Lennard Zinn views the reader's video and offers some thoughts.

A riding reader says it seems he's constantly rubbing one or both of his disc break pads. Master mechanic Lennard Zinn has the fix.

With most of us hanging up our `cross bikes for the year, Lennard Zinn details those steps necessary to protect your tires.

Readers have more questions about mixing up fork and wheel setups on 650B rigs. Singletrack.com's Lennard Zinn has the answers.

A reader asks tech guru Lennard Zinn if a 650B bike doesn't work out, can 26-inch wheels work on the rig instead?

A reader asks bike tech guru Lennard Zinn if it still make sense to cover the inner legs on suspension forks.

Lennard Zinn offers a few more thoughts on the subject of brake chatter on cyclocross bikes.

Mylar packaging tape in lieu of rim tape? Find out what master mechanic Lennard Zinn has to say about that.

Lennard Zinn offers some follow-up ideas on ways to make sure you don't roll a tubular tire.

How accurate are pump pressure gauges?

A reader asks if there are any 180mm 2x9 specific cranks on the market, or are taller riders just out of luck?

Lennard Zinn ponders the age-old question of why your chain is on the right side and finds the answer on a horse.

Size matters when it comes to tires: Many sizes that have the same, or almost the same, designation are actually completely different sizes.

Do tubeless tires work for cyclocross?

In NASCAR, rubbin's racing, but when it comes to disc brakes on your rig it's just annoying.

Lennard shares some recent experiences and insights from the cyclocross races.

In his first weekly column for Singletrack.com, tech guru Lennard Zinn takes questions on disc brake performance and compatibility, the longevity of press-in bottom brackets and the availability of "special" Shimano tools/

How do I remove a seatpost stuck in my frame?

What can I do if I need to replace my tapered-steerer fork?

Are SRAM shift levers durable?

Should I be concerned about the durability of my Shimano 105 shifter?

How can I keep water out of my aero frame?

Why do my feet slip inside my cycling shoes?

How can I route the Ergopower shift cable without kinking it?

Is it OK to file off 'lawyer's tabs' on mountain bike forks?

What's that little red thing on Tour de France bikes' chainstays?

Can someone repair my Campy carbon crank?

Can I use Campy 10-speed shifters with 11-speed derailleurs?

Can stem height affect high-speed shimmy?

Can mis-aligned rear dropouts cause rear wheels to pull over?

Can I use a Campy 9-speed rear derailleur with a 10-speed drivetrain?