About the author: Kurt Gensheimer

Kurt Gensheimer thinks the bicycle is man’s most perfect invention. He firmly believes ‘singlespeed’ is a compound word. He sometimes wears a disco ball helmet. He is also known as Genshammer. He is a Gemini and sleeps outside in a hammock.




ASS Does Downieville: Documenting season of work & play

The Angry Singlespeeder is posting up in one of world’s most unique mountain bike locales for the summer, and for better or worse he’s going to tell us about it.

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Review: RockShox RS-1 suspension fork


RockShox’s groundbreaking inverted fork offers superb performance — and a lofty price tag. So is it worth it?

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Review: SRAM Guide RSC brakes


New Guide RSC brakes feature an all-new design, alleviating the bleeding and consistency woes of the predecessor Elixir product line. But are they better than Shimano?

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Review: Four essential items for a 420-mile MTB ride


Planning a multi-day mountain bike adventure? Here are four pieces of essential gear. Find out why.

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Review: Industry Nine Trail 29 wheelset


We put this American-made wheelset to the test and found it had outstanding durability, hub performance and lateral stiffness.

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Gear Review: Ibis 941 Wheels


Ibis’ first wheelset jumps on the legit wide rim trend with their impressive 41mm outer width and their 1770 gram weight in 29-inch diameter.

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Long Term Review: Cane Creek DBInline


Big things come in small packages. The DBInline is a full twin-tube shock just like the DBAir, it’s just packaged more economically to fit a wider range of 120mm-160mm travel bikes.

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2014 Holiday Gift Guide: The ASS’s Craigslist gift finds


Holiday Gift Guide: Our columnist the Angry Singlespeeder is one thrifty dude. And if you’re on his Christmas list brace yourself–it ain’t gonna be pretty.

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The Angry Singlespeeder: Just Don’t Get Hurt


The Angry Singlespeeder: Go big or go home? Maybe not. The ASS lays down his thoughts on the Affordable Care Act for the mountain biker.

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Long Term Test: 2015 Ibis Tranny 29


The Angry Singlespeeder puts Ibis’ latest hardtail—the Tranny 29—through the wringer to see if the versatile wagon wheeler has got the goods for the long haul.

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Gear Review: Gates Carbon Belt Drive System


Gates Carbon Drive belt system a light, quiet option for single speeders.

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The Angry Singlespeeder: I am so over the road


The ASS trades his knobbies for skinny tires and finds out he’s been missing absolutely nothing.

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The Angry Singlespeeder: Legendary Kamikaze returns as awesome, inclusive festival


The legendary Kamikaze makes it’s triumphant return with something for everyone.

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The Angry Singlespeeder: Foaming at the mouth about CrossVegas


Beer and foaming in Las Vegas: The Angry Singlespeeder throws down on over-the-line fan behavior at CrossVegas

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The Angry Singlespeeder: Will e-bikes short circuit mountain biking?


The Angry Singlespeeder asks a pertinent question—Will e-bikes short circuit mountain biking?

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The Angry Singlespeeder: A comic tragedy – thoughts on Robin Williams


The Angry Singlespeeder reflects on the passing of comedian, actor and fellow cyclist Robin Williams.

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The Angry Singlespeeder: Does Levi Leipheimer belong in mountain biking?


The Angry Singlespeeder looks into complaints about confessed doper Levi Lepheimer racing at Downieville. His perspective might surprise you.

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The Angry Singlespeeder: Why the Downieville Classic is my all-time favorite


There are many mountain bike events that capture the essence of our sport, but in my mind, the Downieville Classic does it best.

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The Angry Singlespeeder: We need primitive trails


With all the world seemingly abuzz about manicured flow trails, the Angry Singlespeeder pines for a more primitive, raw trail experience.

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First Look: Ibis releases all-new Tranny 29 hardtail


Ibis releases a new 29-inch version of its vaunted Tranny hardtail. See it here–vaunted.

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Factory Tour: Cane Creek Cycling Components


Mtbr takes a tour of Cane Creek’s North Carolina factory where they make shocks, headsets and seatposts here in the good ol’ US of A. Come on along and check it out.

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Factory Tour: Inside Industry Nine


North Carolina’s Industry Nine Industry builds wheels that are as beautiful as they are functional.

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The Angry Singlespeeder: The Trans-Sylvania Epic – Death by rock


The Angry SInglespeeder takes on rocks, ruts and raucousness of Pennsylvania’s Trans-Sylvania Epic.

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The Angry Singlespeeder: Think you’re hardcore? Think again


Think you’re hardcore? Think again. ‘Blind Bobby’ McMullen defies odds and redefines the word.

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Gear Review: Cane Creek DBinline Air Shock


Cane Creek launches twin-tube damper performance and adjustability in a compact and lightweight single tube shock package.

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The Angry Singlespeeder: Dear Europe


The ASS bleeds enduro blue—red, white and blue, that is—as he challenges the claims of someone called “Europe.”

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The Angry Singlespeeder: Singletrack Summer Camp


Gearing up for the Trans-Sylvania Epic, a seven-day mountain bike stage race in Pennsylvania that’s becoming known as the ultimate “singletrack summer camp”.

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The Angry Singlespeeder: Whiskey on Ice


The Whiskey Off-Road is a race designed to lure riders from colder climates for a little spring thaw in the perpetually 70-degree town of Prescott, Ariz. As our Angry Singlespeeder can attest, someone spiked this year’s Whiskey with a little dash of polar vortex.

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Gear Review: Ritchey Vector Evo Streem saddle and Trail seatpost


Ritchey’s lightweight Vector Evo monorail saddle and seatpost system suspends rider for exceptional comfort.

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The Angry Singlespeeder: None More Blue


Look out enduro racers, there’s an angry new Smurf in town and there’s none more blue.

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Bike Test: Pivot LES 29 Singlespeed review


Bike-maker Pivot has been on a roll of late, and their first hardtail offering is no exception. The Pivot LES 29 is one mean, lean, racing machine whether you go geared or singlespeed.

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The Angry Singlespeeder: Another Sea Donkey Adventure


He may not know a donkey from a marine mammal, but our resident Angry Singlespeeder knows about something bigger than Sea Otter. And here’s a hint—it ain’t a fatbike.

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Gear Review: Betabrand Bike to Work Britches


Is that a reflector in your pants or are you just happy to see me? See what our resident Angry Singlespeeder thinks of Betabrand’s new Bike to Work Britches.

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Gear Review: Lauf Trail Racer 29 fork


Lauf’s 990-gram, leaf-spring Trail Racer 29 suspension fork challenges the status quo and—at 60mm-travel—comes up a little short. But that’s not the fork’s only issue. Our Kurt Gensheimer takes a close look at this Icelandic oddity.

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Compare-O Bottom Line: Specialized S-Works Enduro 29 is the king of descent and more


The Specialized S-Works Enduro 29 makes the case for being the best of both worlds—a bike that handles like a 26er and rolls like a 29er. Did they pull it off?

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Compare-O Bottom Line: Yeti SB95C is a gorgeous high-speed weapon


Captivating looks, big wheels and the simple yet innovative Switch suspension set the Yeti SB95C apart. Take a deep-dive into it’s performance here.

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The Angry Singlespeeder: The Mountain Bike Hall of Fame doesn’t deserve to be in Fairfax


Mountain biking may have been born in the hills above Fairfax, but due to a vocal and powerful group that restricts mountain bike access, that’s all it can claim.

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Round-Up: Four polar vortex-fighting mountain bike shoes to keep your feet warm and dry


We test four different winter MTB shoes to find the ideal kicks for wet, muddy and sub-freezing conditions.

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Compare-O Bottom Line: Orbea Rallon’s brings punk rock attitude to the enduro party


Orbea’s 160mm-travel Rallon throws down some serious Euro-trash punk rock on our Enduro Compare-O.

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The Angry Singlespeeder: Hippies, high schoolers, naked dudes and drunkards in the desert


The 24 Hours in the Old Pueblo, dubbed as the “Burning Man of Bike Races”, captures everything that is amazing about mountain bike culture.

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Compare-O Bottom Line: The Ibis Mojo HDR 27.5 is a razor-sharp performer


Ibis’ HDR is a wonderful chameleon that does its thing with 26- or 27.5-inch wheels. See if that’s a good thing or a compromise in our Bottom Line review.

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Compare-O Bottom Line: The BMC TrailFox TF01 XX-1 Trailcrew is a go-to enduro race bike


Swiss precision is in full effect on the BMC TrailFox TF01 XX1 Trailcrew, a thoroughbred high performer with a price tag to match.

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Compare-O First Look: Specialized S-Works Enduro 29


The S-Works Enduro 29 is one of the hottest bikes on dirt right now thanks to a remarkable combination of a 67.5 degree head tube angle, 155mm of rear wheel travel, super-short 16.9-inch chainstays despite its big hoops. See what else we found remarkable in our First Look.

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Compare-O First Look: Orbea Rallon


Engineered to dominate the Enduro World Series circuit, the all-aluminum Orbea Rallon features 27.5-inch wheels and 160mm of travel with adjustable geometry

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Compare-O First Look: Yeti SB95 Carbon Race


Traditional trail bike geometry, innovative Switch Technology suspension design, a well-equipped Shimano XT build kit and stunning looks—the Yeti SB95 C is one of the most anticipated rigs in the Compare-O.

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Review: 2014 Specialized CruX Elite EVO Rival Disc


If you could have one – and only one – bike, the CruX Elite EVO might just be the choice.

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Compare-O First Look: Ibis Mojo HDR 650b


The tried and true Ibis Mojo HDR is now offered in the trendy 27.5-inch wheel size. But do the bigger wheels enhance or detract from the performance of this legendary bike?

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Compare-O First Look: BMC TrailFox TF01 XX-1 Trailcrew


BMC’s TrailFox TF01 has come a long way from its roots as a portly aluminum, short-travel 26er. See the amazing transformation a little carbon, big wheels and long travel have brought to the 2014 version.

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The Angry Singlespeeder: The Paradox of Choice


With so many different brands and models of mountain bikes to choose from these days, how crucial is it really that you find the ‘perfect’ bike?

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The Angry Singlespeeder: Fat Bikes. Meh.


Does the added expense and time investment of buying and maintaining a fat bike justify its overall fun and usefulness?

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