About the author: Jason Sumner

An avid cyclist, Jason Sumner has been writing about two-wheeled pursuits of all kinds since 1999. He’s covered the Olympics, Tour de France, MTB world champs, and dozens of other international cycling events. He also likes to throw himself into the fray, penning first-person accounts of cycling adventures all over the globe. Sumner, who joined the Mtbr staff in 2013, has also done extensive gear testing and is the author of the cycling guide book "75 Classic Rides: Colorado." When not writing or riding, the native Coloradoan can be found enjoying life with his wife Lisa and kids Cora and Tommy in and around their home in the MTB Mecca of Crested Butte.




Spank Spike 350 Vibrocore review


In an effort to literally reinvent the mountain bike wheel, Spank injected a hard-cell foam into the hollow rim interior, the goal to make the Spank Spike 350 Vibrocore wheels more durable and better at damping vibration.

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Marzocchi Bomber Z1 review


Unless you really like spending money or are uber-weight conscious, there’s no reason to not consider the Marzocchi Bomber Z1.

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DT Swiss XM 1501 Spline One 35 review


If you can stomach the cost the DT Swiss XM 1501 Spline One are a true set-and-forget all-mountain wheelset that capably stood up to some serious trail smashing during this Mtbr test.

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Yeti SB130 debuts + short term review


If your ride objectives lean toward being able to go up and down without significant (or really any) compromise, you owe it to yourself to test drive this bike. It’s that good.

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Yeti SB150 review


The Yeti SB150 is a big bad beast of a bike that can handle just about anything this side of a World Cup downhill — and actually climbs really damn well, too.

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Yeti SB150 29er launched


If you’re already a fan of Yeti’s trail and enduro bikes, then the only thing you need to know about the new Yeti SB150 is that it has space inside the main triangle for a water bottle. But there’s much more to it.

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Ritchey WCS Kite Dropper Seatpost review


With the aim of minimizing the reliability concerns that often plague other droppers, the 125mm Ritchey WCS Kite Dropper Seatpost utilizes a simple three-position mechanical low pressure air system.

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Maxxis Ikon review


While not the fastest in this XC tire shootout, the Maxxis Ikon is arguably the best overall tire among the group. Find out why in the Mtbr review.

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We Are One Agent review


Designed for enduro smashing good times on the trail, the We Are One Agent carbon wheels have stood the test of time and abuse.

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Vee Crown Gem review


Solid all-around tire with attractive price and impressive puncture resistance, that also rolls fast and grips better than expected.

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Hutchinson Toro review


Among their versatile tires, the Hutchinson Toro has evenly spaced knobs that deliver neutral handling. Center knobs are shorter for mud clearing, while side knobs are taller for enhanced cornering grip.

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Vittoria Mezcal review


Fast, dry conditions XC racer with low profile, densely spaced knob configuration and a defined center ridge tread for low rolling resistance.

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Schwalbe Racing Ralph Addix review


As its name clearly implies, this is an XC racing tire. The tread pattern is familiar in this class of rubber – more tightly spaced center knobs to increase speed, but taller, more widely spaced side lugs for extra bite.

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Kenda Saber Pro review


With its minimalist tread profile and 120 tpi casing, the Kenda Saber Pro is a dedicated XC race tire that is designed for fast, dry singletrack.

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Specialized Fast Trak review


Using finite element analysis, the Specialized Fast Trak tire’s consistent shoulder block layout improves cornering traction.

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Rotor 13-speed coming in 2019


On the heels of Shimano’s release of a 12-speed drivetrain to compete with SRAM Eagle, Rotor has upped the ante even further with the launch of a 13-speed modular mountain bike/drop bar group.

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Cross-country mountain bike tire shootout first look


Defining the modern cross-country tire is not easy. They must be fast and light, but also durable and grippy. It’s a lot to ask. See how these seven options measure up.

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How to pick the right mountain bike tire


Talk all you want about the benefits of upgrading wheels, brakes, or even your entire drivetrain. But pound for pound (or gram for gram), there’s no better upgrade than tires.

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Shimano XTR first ride review


Though we’ll need to log far more ride time before we can make any assertions about durability, Shimano’s new XTR group appears to be a home run in both form and function.

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Time to tip your trail builder


Downed trees just don’t magically disappear in the spring, critical trail armor doesn’t fall off the armor tree, and drainage mitigation isn’t an act of God.

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Chris Farley’s family settles with Trek over fat bike name


The family of the late comedian and movie actor had filed a federal lawsuit against the Wisconsin-based bike maker, claiming its fat bike named the Farley “misappropriated Farley’s name.”

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New Shimano XTR 12-speed: What you need to know


Shimano’s new race-ready drivetrain boasts a 10-51 cassette (510% gear range), smoother shifting, and a host of other improvements.

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New Shimano XTR brakes: What you need to know


Shimano has launched two new XTR-level brakes, one 2-piston model geared to the weight conscious XC racer crowd, and a four pot version for the enduro sect who prioritize power and smooth braking feel.

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New Shimano XTR hubs, pedals, and more


To complement its new 12-speed XTR drivetrain, Shimano has launched a host of new hubs, plus new XTR-level pedals, a slick dropper post remote, and a new chain keeper.

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Marzocchi Bomber Z1 is back


The new Marzocchi Bomber Z1 isn’t necessarily the end all fork to have. Instead it’s being positioned as a great choice for trail/enduro riders on a budget.

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Praxis Girder Carbon cranks now available


Praxis has yet another entry into the carbon cranks realm – and this one won’t break the bank.

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Diamondback Sync’r Carbon coming soon


Count Diamondback among the bike makers embracing the “playful” hardtail market. Coming later this summer is the new Sync’r Carbon with a 66-degree headtube angle.

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Continental revises King tire series


Continental is bringing a completely revised King series to market, highlighted by improved tubeless ready functionality and the addition of 2.6 widths in some models.

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Rotor unveils new power meter and lightweight cranks


Spain’s Rotor Bike Components has an ever-expanding product range that now includes a dual-side measuring MTB power meter and new XC race cranks.

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EVOC rolling out new riding packs


In the EVOC development pipeline are three new products: Hip Pack Pro 3L, Hip Pouch 1L, and the FR Lite Race 10L pack. Here’s a sneak peek.

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Sea Otter Goodies: Five products that caught our eye


Here are five intriguing goodies that we happened upon during our time in California: new pedals, tires, sealant, a hitch rack, and a bunch of carbon wheels.

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Leatt DBX 2.0 helmet at Sea Otter


The Leatt DBX 2.0 trail helmet shares many of the same features as the DBX 3.0 — but costs $70 less.

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Giro launches three new gravity MTB shoes


Everybody loves new shoes and we’re betting these three gravity-oriented offerings from Giro won’t change that.

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Woom 1 Plus 14″ balance bike launched


New kid’s bike is designed for taller or older neophyte riders — and you can trade up when they’re ready to start pedaling.

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Vittoria Air-Liner tire insert launched


There’s yet another player getting into the MTB tire insert game. This time it’s Vittoria, which launched the Air-Liner at the Sea Otter Classic.

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Syncros Silverton SL one-piece carbon wheelset


Check out this one-piece carbon wheelset, where the rim, spokes, and hub shell all come out of one composite mold. Just push in a hub bearing (DT Swiss 190s in this case) and off you go – quickly.

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Santa Cruz Blur first ride review


After a three-year hiatus, the bike that arguably put Santa Cruz on the map is back. Meet the new Blur, a 29-inch wheeled full carbon XC speed machine with 100mm of VPP suspension.

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2018 Santa Cruz Highball first ride review


New low-angle stays designed to work in tandem with a bridgeless seatstay design to help absorb trail chatter.

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BikeYoke Revive Dropper Post Review


Aptly named Revive infinite travel dropper post directly addresses issue of air leakage (and the ensuing mushy performance) by equipping the post with a valve that when activated resets the hydraulic circuit.

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Canyon Dude CF 9.0 Unlimited Fat Bike Review


German direct-to-consumer seller Canyon makes virtually every kind of bike, including the fully rigid Dude CF 9.0 Unlimited fat bike. See how it fared during a Colorado winter’s worth of testing.

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2018 Fat Bike World Championships


Annual bacchanal of all things fat was back for another year and better than ever.

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Are carbon tri-spoke wheels the next big thing?


Don’t look now, but the tri-spoke wheel could be making a comeback — in enduro. U.K.-based wheel maker Spengle has been making waves on the internet this week, touting the benefits of its full-carbon tri-spoke 27.5 wheel.

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Mtbr’s Most Read Posts In 2017


As we push headlong into 2018, it’s fun to look back on the year that was. Here’s a rundown of the 20 most viewed Mtbr posts from 2017.

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Best of 2017: Jason’s Top Gear Picks


Here’s another Best Gear of 2017 list, this time from Mtbr features editor Jason Sumner. Let us know what you think of his selections in the comments section.

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Canyon Torque super enduro bike launched


German direct-to-consumer seller unveils new Torque super-enduro bike, aluminum Sender DH rig, and G5, the company’s new line of gravity-focused handlebars, stems, and grips.

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IMBA defends stance against amending Wilderness Act


Public lands are being threatened at an unprecedented level right now, says IMBA. And it’s imperative that public land users come together to protect these cherished places and offer our voices in this critical dialogue.

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2018 Canyon Spectral unveiled


The 2018 Canyon Spectral features a new shock orientation, boost hub spacing, room for larger tires, and a host of other unique design changes.

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2017 Mtbr Holiday Gift Guide


Whether you are shopping for your significant other, son, daughter, or yourself, these 20 great MTB’centric gift ideas are sure to please.

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Lazer Revolution FF helmet review


ASTM DH certified helmet toggles between full face and half shell mode, and allows for high degree of color customization.

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Douchebags 30L Hugger backpack review


Douchebags 30L Hugger backpack is a solid and functional piece of travel luggage that looks cool, too.

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