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 Tour de France, the Olympic Games, and dozens of other international cycling events. He also likes to throw himself into the fray, penning first-person accounts of cycling adventures in British Columbia, Belgium, Brazil, Costa Rica, France, and Peru among many others. Sumner, who joined the RoadBikeReview.com / Mtbr.com staff in January, 2013, has also done extensive gear testing and edited a book on cycling tips. When not writing or riding, the native Coloradoan can be found enjoying the great outdoors with his wife Lisa.




Choosing The Perfect Enduro Bike: How much suspension do you need?

Enduro Compare-O Feature: Pro riders Aaron Bradford, Andreas Hestler, Jeremy Horgan-Kobelski, Heather Irmiger and Boulder Cyclesport owner Brandon Dwight weigh in for Part 1 of our 3-part series, “Choosing the Perfect Enduro Bike.”

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Compare-O First Look: Specialized S-Works Stumpjumper FSR EVO 29

No doubt this $9,000 silver-painted super bike will shine, but just how brightly when compared to the competition is the real question.

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Compare-O First Look: Santa Cruz 5010 Carbon

Santa Cruz’s playful all-day adventure rig looks to have plenty of climbing chops. But will the Fox 32 fork and trim-profile frame be up to the task when things get rowdy?

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Spotted: New RockyMounts Aerodynamic Upright Bike Rack

Good looks, better gas mileage, and ease of use (especially for bikes with thru-axles) were the driving factors behind the design and engineering of the soon-to-be-released Rocky Mounts Brass Knuckles.

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Factory Tour: Inside Pearl Izumi’s New HQ Building

Best Christmas present you can give a company? How about a brand new 55,000-square foot state-of-the art building complete with a fitness room, locker room, showers, and expansive indoor bike storage.

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Just In: Pearl Izumi X Project 1.0 Mountain Bike Shoe

It’s been a long time in development, but we finally have a production version of the much-ballyhooed Pearl Izumi X Project mountain bike shoes in our hands. Read on to hear about our initial impressions and what they really weigh.

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Spotted: New Moots Frosti 5” (And 29er+) Fat Bike

The latest creation from Moots is a titanium fat bike frame with spacing to accommodate 5-inch wheels — and 29er+ wheel and tires. That means you can conceivably ride it all year long — on snow, sand or dirt.

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Review: Scott’s Genius 700 Tuned Takes On The Breck Epic

Can one bike do a little bit of everything — and do it all well? We took the new Scott Genius 700 Tuned to the six-day Breck Epic mountain bike stage race to find out.

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Video: Lauf TR29 Fork – 990 Grams, 60mm of Travel

New fork has no moving parts, instead using the same leaf spring technology found in prosthetic legs.

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Eurobike 2013: World’s Lightest 29er Hardtail?

There is no UCI minimum when it comes to mountain bikes, but if there was it’s safe to say two new concept bikes from Open would be flagged illegal. As it is the pair of hardtail 29ers on display at Eurobike (one fully rigid, one with a 60mm leaf spring fork) are both under the UCI’s 6.8kg minimum for road bikes.

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Downhill Racing Returns To Crested Butte

One of the birthplaces of mountain biking is set to hold a top tier downhill race in mid September — and it will coincide with the area’s annual Chili and Beer Festival.

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Breck Epic Stage 5: Yep, That Was Epic

Thursday’s stage 5 of the Breck Epic deserves what is often an overused adjective in the fat tire world. No it wasn’t the longest stage in mileage or time. But heading up and over Wheeler Pass was indeed epic.

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Breck Epic Stage 4: Suffering and Singletrack

On paper Wednesday’s stage 4 grunt (43 miles, roughly 7,000 feet of climbing) was the bad boy of the Breck Epic’s 6 stages. There was brutal fire road climbing, brutal singletrack climbing, and one mishmash of doubletrack and narrow trail that’s known locally as Vomit Hill.

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Breck Epic Stage 2: Lessons From The Trail

Two days of the 5th annual Breck Epic 6-day cross-country stage race are in the books and there are many lessons to be learned. Here then is a point-by-point encapsulation on some of what Professor Pain and the Singletrack Savant have taught thus far here in Breckenridge, Colorado.

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Leadville 100 Exclusive Interview: Race Favorite Todd Wells

Todd Well has been aiming at the Leadville 100 for months, spending extended time training at altitude, while at the same time winning the overall of the Pro XCT series. In between it all, the three-time Olympian invited Mtbr.com into his home for an extended interview.

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Washington State Enduro Series Benefits Trails

New five-race Cascadia Dirt Cup series offers top notch racing while giving back to local communities by donating a portion of its revenues to trail development and trail maintenance.

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Review: Osprey Raptor 14 Hydration Pack

If you’re looking for a medium sized, feature-rich hydration pack that will capably carry everything you need for those 3-4-hour mountain bike rides, the Osprey Raptor 14 is worth a long look.

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Freewheeling: Drinking In The Original Growler

Mountain bike races are kind of like good beer. Each has its own unique flavor, style, appearance, and of course alcohol content, which in fat-tire terms translates to difficulty. Gunnison, Colorado’s Original Growler is a stiffy.

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Gunnison’s Original Growler: What You Need To Know

For starters, be aware that the Original Growler is loaded with techy singletrack and almost never-ending pedaling. No wonder everyone who registers for the race must tick a checkbox affirming that they are “an experienced mountain biker.”

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Sneak Peek: Nico Vouilloz’s Lapierre Spicy Team 27.5

Lapierre leaked some shots of a prototype 27.5 rig that French great Nicolas Vouilloz will be piloting during his chase for Enduro World Series glory. It’s one seriously sexy bike. Check it out.

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Review: Mavic Notch Helmet, Shoes and Apparel

While there are no mandatory gear requirements for enduro racing, cycling companies are making a big push with lots of new enduro-specific gear. Here we take a look at Mavic’s complete Notch line.

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Primal Wear Details Helix Kit and its Give Back Program

In our on-going Sea Otter Classic video series, Primal Wear marketing director Tim Baker breaks down the highlights of the Helix jersey and bibs, and explains the company’s charitable Give Back Program.

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Kappius Looking To Kickstart Hub Production

Innovative hub maker Kappius Components has launched an updated version of its unique road and mountain hubs. Now they’re seeking financial backing to begin manufacturing. Find out how you can help.

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Updated: Sneak Peek Of Giant’s Prototype 27.5-inch Bikes

When a company spends upwards of $100,000 per carbon mold and makes three of said molds, it’s a safe bet that something new is moving quickly down the pipeline toward public availability. That would certainly appear to be the case with Giant and the burgeoning realm of 27.5-inch mountain bikes.

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New National Sanctioning Body Set To Compete with USA Cycling

Citing a long-held dissatisfaction with the job cycling’s national governing body has done, an Oregon-based group has launched the North American Bicycle Racing Association.

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