Lennard Zinn

How to service Phil Wood Hubs, clean disc brake calipers pistons, and praise for Di2 ‘triples.’

Is the pro peloton finally catching up to Lennard Zinn's predictions about dropper posts? More disc brake maintenance tips.

The final word for optimizing your chain for low friction and longevity from industry experts.

To remove—or not—the lube that ships with chains, and more options for ‘climbing’ gears.

Manufacturer guidelines and recommendations for tubeless tire inflation upper and lower limits.

In this test from the March 2013 issue, Friction Facts measures the efficiency cost in watts for the most popular chain waxes and lubricants.

How to choose and apply chain lube, mixing double and triple chainring groups, what Campy parts work with each other.

Mix and match accessory hydro levers, stripped Camp crank bolts, and Campy front derailleurs.

Differences between chain lines of Campagnolo, Shimano, and SRAM disc brake setups.

Space for disc brake rotors, gearing combinations, and chain line considerations for Shimano and SRAM drivetrains.

Swapping stems, handlebars, and spacers for more comfort on your bike.

Considerations for adapting stack and reach when loss of flexibility becomes a consideration.

Do weights of tires factor into the amount of energy required to turn them, and discussions of what causes front-end shimmy.

Cycling wheel and tire experts offer opinions about and insights into tire testing.

VeloNews technical expert examines brand cross-compatibility of brakes and drivetrain components.

A real-world example of how rolling resistance impacts effort, and duration, over a 200-mile gravel ride.

A discussion of tire rolling resistance testing methods and protocols.

We tested on a rough lab surface at pressures from 22-87psi, and investigated various construction methods, puncture protection strategies, and the tradeoffs of tread patterns.

More tips for mounting tubeless tires on tubeless wheels.

How to mix and match braking components across brands, and why Shimano does not offer a 10-tooth cog for new groups.