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BMC: Trailfox 03 ONE - 2018



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Product Description

BMC: Trailfox 03 ONE - Shimano XT 1x11 - 2018


Endless flow and grueling climbs - the trails are calling.


AllMountain Series

A return to the roots


Roll fast, roll smooth: Awesome up, awesome down, awesome all around with 29" wheels.


Confidence by design: With the right suspension rocks, drops, roots and lips mean fun, not fear.

Rider Position

The Sweet spot: Generate power up the climbs and confidence on the decents, and carve through tight terrain with speed.



  • Al-13 Premium Triple-butted aluminum (F&R)
  • Rock Shox Yari RC, Solo Air (160mm)
  • Can Creek DB Inline (150mm)
  • Shimano XT, RaceFace Aeffect SL
  • RaceRace Aeffecr R / 30


A brilliant collision of fun and high-performance

There aren’t many bikes in this world that perform as well in the ‘fun’ category as they do the ‘race’ category, but the Trailfox is one of those rare exceptions. Originally designed for the Enduro World Series racing circuit for BMC's Factory Trailcrew Team, the Trailfox has quickly become a crowd-pleaser among non-racers. The 150mm pedal-focused 29er makes quick work of climbs and lets riders fully embrace the ‘fun’ side of the hill. With a long font-center and short chainstays, the progressive Big Wheel Concept geometry makes for an awesome day on rugged terrain.



APS - Advanced Pivot System

No compromises - APS suspension technology allows you to pedal hard, brake fast, and soak up bumps without compromise.

Kinematics: 1    Obstacles: 0

Creating a full-suspension platform is nothing short of rocket science – a balancing act of great pedaling efficiency, unimpeded braking, small and big bump compliance, and a nice serving of fun and playful handling. BMC's solution is the Advanced Pivot System (APS), which optimizes pivot locations for ideal kinematics and results in purposeful leverage ratios, axle paths, and shock performance characteristics. The reward is a World-Champion proven system capable of cross-country racing, all-mountain ripping, and everything in between.

A well-designed full suspension bike

A well-designed full suspension bike offers the control and confidence to ride any trail without hesitation. Traction, control and efficiency are the top priorities with APS and we use a series of simulation supercomputers to ensure each discipline of riding gets the perfect balance of performance metrics so riders have the experience they expect every day on the trail. BMC believes it should also be durable, tuneable for any rider and serviceable in a short amount of time. APS relies on two very short links, moving in a concentric motion, to create a rear wheel axle path that promotes a perfect balance of leverage ratio, fully-active braking performance, pedal kickback and efficiency, and small bump sensitivity.

The result is a light, stiff and compact structure that promotes excellent control and energy transfer for the rider.

Efficient Pedaling

Suspention designed to soak up the bumps - not pedaling power

Fatigue Reduction

Stay fresh, stay powerful and stay sharp with engineered fatigue reduction


Awesome suspension kinematics means improved suspension performance - pick your line and ler the bike fo the rest

BWC- Big Wheel Concept

Agility & stability - Purposeful geometry and cockpit design means our 29" bikes are nimble, stable and incredibly efficient.

More than big wheels

It takes a lot more than just adding bigger wheels to fully capture the benefits of the 29er. And for that reason, the transition to bigger wheels has, for many brands, proven incredibly difficult. But BMC's progressive Big Wheel Concept created a totally new way of thinking, from axle to axle, and has set us apart from the rest. More control, more comfort, more confidence and a whole lot more speed, the 29er and BWC are the past, present and future of big wheels.

Big Wheel Concept is much more involved than a wheel diameter; it’s a philosophy, a mindset, a strategic approach to geometry and handling characteristics to make 29er bikes ride intuitively. When the transition to 29” wheels started catching fire, their engineers realized quickly that the entire bike, from handlebar to rear triangle, had to be redesigned and re-evaluated. The end result is a multi-faceted approach: position the rider in an ideal space for traction and control, create the perfect cockpit for confidence, and rethink geometry until the bike is fast, fearless and nimble.

Greater agility

Perfect chainstay length, maximum bottom bracket drop and a short stem all create a bike stem all create a bike atat works with the rider, not against them.

Increased stability

With a larger contact patch, 29" wheels are known for stability and predictability -  BMC takes things further with a purposeful geometry and cockpit.


Specific geometry designs to compliment big wheels means awesome rider control


Keep it rolling - 29er wheels roll fast up or down

Nimble handling

Stay confident, fast and maneurvable in the tight stuff



Trailfox 03 29 - Advanced Pivot System
Al-13 Premium Triple-butted aluminum (F&R)
S / M / L
Rock Shox Yari RC, Solo Air (160mm)
Rear Shock
Cane Creek DB Inline (150mm)
RaceFace Aeffect SL DM, 32T
Shimano XT, 11-46T
KMC X-11EL-1
Front Derailleur
Rear Derailleur
Shimano XT, Shadow Plus
Shimano XT
Shimano XT (203/203mm)*
BMC MRB 02, 780mm
BMC AMSM 02, 45mm
RaceFace Turbine Dropper 150mm
WTB Volt Race
RaceRace Aeffect R
RaceFace Aeffect R 30**
Maxxis Minion DHF EXO/3C, 2.35 (F) / Maxxis Minion DHR EXO/3C, 2.3 (R)
*M size spec - rotor size adjusted for some sizes




Stack mm 610 615 619
Reach mm 410 435 460
Seat tube st mm 400 440 480
Top tube tt‘ mm 585 611 638
Head tube ht mm 90 95 100
Seat angle sa ° 74 74 74
Head angle ha ° 67 67 67
Rear center rc mm 435 435 435
Front center fc mm 712 739 766
Wheelbase wb mm 1045 1173 1200
BB drop mm 30 30 30
Fork length fl mm 562 562 562
Fork rake fr mm 51 51 51
Trail mm 101 101 101
Crank length mm 170 175 175
Stem length mm 45 45 55
Bar width mm 780 780 780
Bar rise mm 15 15 15
Backsweep ° 9 9 9
Post length mm 125x375 150x440 150x440
Stand over height mm 725 735 745



BWC Geometry

The aggressive demands of all-mountain riding demand a maneuverable machine, with a confidence-inspiring feel when screaming down high-speed descents. A long top tube, slack head tube angle and a wide bar paired with short stem and chainstays is BMC's recipe for making big wheels roll fast and turn easily. The entire Trailfox family is built upon this super progressive approach to all-mountain  geometry - enduro-ready from the first ride.


At BMC BMC believes that off-road bikes are deserving of the classic ‘showpiece’ designation that bike lovers admire. BMC's engineers worked magic by making the Speedfox one of the most adaptable frame platforms. Another trail bike with legendary aesthetics.


BMC's Advanced Pivot System (APS) for the Trailox family is focused on pedaling efficiency and elevated bike control. Wait, an all-mountain bike that pedals well? Yep, that’s right! Their BMC Factory Trailcrew riders wanted to be able to pedal efficiently so they can stay fresh between trail-tearing sessions. For riders who pedal up the climbs so they can bomb back down them this rig is the answer.

Array – Trailfox 03 ONE


  • Frame: Trailfox 03 Al-13 Premium Aluminum Frame (F&R) - 150mm
  • Frame Technology: Advanced Pivot System Suspension & Big Wheel Concept Geometry
  • 3 sizes: S / M / L
  • Frame Weight: 3180 (M)**


  • Frame: Integrated ISCG05 mounts / Internal routing for dropper post / Initial Load Indicator (SAG) / Injection molded chain stay protectors

Technical details

  • Fork: Tapered steerer 1-1/8” to 1-1/2”, 51mm offset
  • Seatpost: 31.6mm
  • Bottom Bracket: BB30
  • Brakes: Natural-born postmount 180 / 203***
  • Drivetrain: 1 x only / single chainring only, Replaceable standard or direct mount rear derailleur hangers
  • Tires: 27.5” x 3.0” maximum width****
  • Misc.: 200mm x 57mm shock dimensions / 21.84mm x 8mm hardware / 36T maximum chainring / single ring drivetrain

**Average sample weight with hardware

***Rotor sizes adapted for some frame sizes

****Tire dimensions based on measured tire width



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