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2017 BMC Speedfox 02 XT Bike


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2017 BMC Speedfox 02 XT Bike

When you look at the BMC Speedfox 02, you’re looking at the front triangle of the Speedfox 01, with a rear triangle of formed, welded, triple-butted aluminum. It raises the weight, improves durability and drops cost.

Joining the two triangles is a sophisticated linkage system, BMC’s Advanced Pivot System, which keeps the suspension active and responding to the trail inputs no matter whether or not you’re pedaling, nor how hard. The linkages are machined aluminum and pivoting on oversized bearings. The pivots are smooth to make sure nothing locks up in stiction, and the size means there’s no lateral slop when new, and none down the trail. The shock is Fox’s Float DPS, with three-position remote damper. Locked, controlled, and loose are easy to switch on the fly. 130mm of squish front and rear. Frame weight goes up to 2790g: a worthwhile compromise to get the performance gains provided.

With the rear suspension, there’s a built-in sag indicator on the swingarm. It is as easy to adjust as eyeballing and dialing.

The geometry takes its shape from BMC employing their Big Wheel Concept and tweaking it for trail riding. In this case, trail means everything from cross-country to all mountain, a bike that really gets at the heart of what it means to just go out and ride what you find. It is designed to be scooty and stable, adept at the slow and fast. This is a bike for the person who doesn’t need to race, but could dabble, who likes to ride hard up and down the mountain, but doesn’t want to rely on lifts. It’s an all trails are open kind of bike.

Because everyone wants their bike to really roll, BMC employs their BWC to make 29er wheels come to life. BWC is Big Wheel Concept, and it’s how BMC took the bigger hoops and make the resulting bike as agile as a 26er. Long top tube, slack head angle, low bottom bracket, short stays keep you in control of the front wheel, the center of gravity low and the rear wheel tucked in behind.

As it typical of BMC, there are lots of smart built-ins. The head tube is designed for 1 1/8” to 1 1/2” steerer tubes. There’s a chain guide over the BB92 bottom bracket shell, and an anti chainsuck plate on the right chainstay. There’s a under the chainstay chain guide as well and a BMC-designed chain-slap protector as well. The seat clamp comes with, as does the 142x12mm rear axle. They’ve designed cable routing to be internal for derailleurs, brake, and seatpost. They’ve deployed their Natural-Born postmounts for the brake, with replaceable threaded inserts and accommodating 180mm to 203mm rotors.

The BMC Speedfox 02 balances performance and price so you can find the balance of exhilaration and utility out on the trail.


Bottom Bracket Shimano

Brake Calipers Shimano XT

Brake Levers Shimano XT

Cassette Shimano XT, 11-40

Chain Shimano XT

Crankset Shimano XT, 34/24

Fork Fox Float 34, Performance, Grip, 3-Pos, 130mm

Frame Material 01 Premium Carbon (F), Al-13 Triple-Butted Aluminum (R)

Front Derailleur Shimano XT

Handlebar BMC MFB 02, 750mm

Headset Integrated

Pedals Not Included

Rear Derailleur Shimano XT, Shadow Plus

Rear Suspension Fox Float DPS, Performance, Evol, 3-Pos, 130mm

Rotors Shimano XT, 180mm

Saddle WTB Volt Race

Seatpost RockShox Reverb Stealth

Shifters Shimano XT

Stem BMC MSM 02

Tires Onza: Ibex FRC 120 (F) / Canis FRC 60 (R), 29×2.25

Wheel – Front DT Swiss M1700 Spline

Wheel – Rear DT Swiss M1700 Spline


Size Seat Tube (c-c) Seat Tube (c-t) Top Tube Length Head Tube Length Chain Stay Length Seat Tube Angle Head Tube Angle Stand Over Height Wheel Size Stack Reach
XS 390 566 90 435 74.0 68.5 29″ 598 395
S 420 588 95 435 74.0 68.5 29″ 602 415
M 460 609 100 435 74.0 68.5 29″ 607 435
L 500 630 105 435 74.0 68.5 29″ 612 455
XL 530 652 110 435 74.0 68.5 29″ 616 475


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