A Swiss Army knife with a very big blade? In years past the BMC trailfox’s do-anything, go-anywhere versatility has been likened to that of the Swiss Army knife. The new trailfox is now based on 29-inch wheels and in that sense it has definitely grown up. The new trailfox is more powerful, potent, and wild. In short, it’s a Swiss Army knife with a very big blade.

BMC TF Launch from WWW.ENDURO-MTB.COM on Vimeo.

“Back to its roots”

Today the words “enduro racing” are on every mountain biker’s mind. Over the last few years, this mountain
bike sport is driven by successful, popular and global races, and hyped up by intense media coverage.
Enduro racing has been the source of passionate debates on internet forums and social networks. Interestingly,
many see it more as a philosophy than as a race category. It has become a symbol of the “ride for
fun” attitude. Yet mountain biking was invented by a bunch of friends in California looking for adventure and
fun by pedaling up the nearest mountain and then having a blast by clunking down the hill on barely appropriate
bicycles. Most people agree that this is exactly how mountain biking got started. And how far
was that from today’s “enduro racing”?

BMC trailfox 2014
François Bailly-Maître racing the Enduro World Series Val d’Allos on his trailfox TF01 prototype.

To efficiently climb mountains and then experience the thrill of the descent: from the very beginning, this has been the motivation behind mountain biking. Already an exemplary climber, the BMC trailfox has long had the potential for conquering demanding descents. And now, after years of evolution, the latest generation of trailfox is uncharacteristically capable, especially because of its 29-inch wheels. Developed in conjunction with world-class Enduro riders, this 150mm Fully is designed with all of the original demands of mountain biking in mind, demands which overlap perfectly with those of today’s ever-growing Enduro scene.

Proven Technology

BMC brings proven technology to the new trailfox, like our Big Wheel Concept (BWC) geometry and our APS suspension system. After countless tests with different wheel sizes, BMC engineers once again opted for 29-inch diameter wheels as they provide the greatest potential for the trailfox, which has 150mm of travel. While many manufactures have shied away from the combination of 29-inch wheels with long travel and short stays, and some have even declared it impossible, BMC has used its engineering expertise to prove the contrary.

Presentation – about 29″ wheels, chain stay length and fork offset.

Bildschirmfoto 2013-08-11 um 22.32.51
BMC did long testing sessions to compare the pro’s and con’s of 26″, 27.5″ and 29″ bikes. These are their results!

Bildschirmfoto 2013-08-11 um 22.34.05
It’s clear that the chain stays have a major influence into the performance of a bike (especially agility). In the case of 29″-bikes it’s a very hot topic. Here BMC compares their trailfox to some of its competitors. Here we have to say “just” short chain stays may indicate a good handling, but doesn’t guarantee …

Bildschirmfoto 2013-08-11 um 22.34.42

… if the front and the whole bike are not adjusted to 29″ wheels. A special 51mm offset fork shall provide a very good steering / handling of the trailfox.

TF01_XTR_2 The high-end version “Team Red XTR” costs EUR 8’999 / USD 11’999 / CHF 10’999.

Agile and Confident

The combination of a slack steering tube angel, lower center of gravity, shortened cockpit and specially developed handlebars provides for ultimate control, even at high speeds. The big wheels guarantee riding stability on rapid descents, unmatched rolling characteristics on technical sections, and phenomenal grip on sketchy terrain. Add to this the trailfox’s short chain stays and the formula for success is complete: the trailfox delivers unprecedented agility, and an uncanny ability to effortlessly navigate challenging trails.

An Efficient Climber

With regards to its downhill capability, the trailfox has decidedly evolved — but without sacrificing any of its esteemed climbing prowess. Its 29-inch wheels reduce rolling resistance and increase grip while its APS suspension ensures perfect power transfer through enhanced traction thanks to its anti-rocker features. The complete carbon frame weighs in at scant 2490 grams, including cable guides, rear axle, and frame protection.


Love for the Details

During the development of the new trailfox extreme attention was paid to the smallest details to ensure a sleek appearance with high-functionality. The integrated chain management keeps the chain securely connected to the drivetrain, and a low stand-over height offers crisp handling yet with room enough to mount dampers with a reservoir and a water bottle.


And if just one chainring is to your liking, the front derailleur bracket can easily be removed. Thanks to the optional ISCG mount, a standard chain guide can be easily mounted.

Bildschirmfoto 2013-08-11 um 22.35.52The Geometry.

A Complete Package

Aside from trailfox TF01, which is built on a full carbon frameset, BMC also offers more cost-effective versions. The trailfox TF02 has an aluminum rear end and carbon front triangle, while the TF03 offers a full aluminum version of the trailfox. With the new trailfox series, BMC covers all price points and therefore offers something for everyone who shares the passion for the original motivation for mountain biking.

The trailfox 01 with SRAM XX1! 12,3 kg and EUR 6’999 / USD 8’999 / CHF 8’599!

TF03_SLXThe “cheapest” version of the trailfox, made in aluminium, the TF03 SLX costs EUR 2’999 / USD 3’999
/ CHF 3’599 – unfortunately without dropper post. Weight? 14.2 kg.

Words & Photo: BMC / Robin Schmitt

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About the author

Robin Schmitt

Robin is one of the two founders of 41 Publishing, a visionary and go-getter. While he now enjoys every second on the bike – whenever his busy schedule allows – he used to race against the clock at enduro events and a few Downhill World Cups. Besides that, Robin practises kung fu and Zen meditation, plays the cello or with his dog (which actually belongs to his girlfriend), travels abroad and still reviews numerous bikes himself. Progressive ideas, new projects and major challenges – Robin loves exploring undiscovered potential and getting to the bottom of new trends.