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Roubion Carbon S Mountain Bike

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Why We Like The Juliana Roubion Carbon S Mountain Bike

The Juliana Roubion lets us saddle up knowing we can tackle anything the mountain throws at us. This 150mm trail bike struts mixed-wheel sizes, giving us the quick-rolling confidence of a 29er up front, and the precise maneuverability of a 27.5in wheel out back. Like all Julianas, the Roubion is tuned for lighter weight riders than its Santa Cruz counterpart, the Bronson. Sporting a Carbon C frame construction, this iteration of the Roubion perfectly blends lightweight performance with durability so we don't have to worry about what we're going to run into on the trail. The mixed wheel set up gives us a bike that's nimble in the corners but rolls through massive rock gardens all day long. 150mm of VPP rear travel and lower anti-squat values to help enhance the bike's traction and overall smoothness. The longer and slacker geometry ensures that the bike remains playful even with the bigger wheel up front and provides tons of stability at speed. At the same time, size specific chainstay lengths allow every size rider to have the same balanced feel and fit. And thanks to the super efficient VPP suspension, we actually find ourselves wanting to pedal up for a second, definitely rowdier lap.

The Juliana Roubion Carbon S kit builds off of the reliable SRAM GX Eagle 12-speed drivetrain offering crisp shifting in just about any trail conditions, while suspension duties are taken care of by a solid combination of a RockShox Super Deluxe Select+ shock for 150mm of responsive rear travel and 160mm Fox 36 Float Performance fork so we can crush through high-tech, gnarly terrain with confidence. A pair of bombproof Race Face AR Offset 30 wheels are laced to reliable DT Swiss 370 hubs for worry-free performance in gnarly terrain, while a set of SRAM Code R brakes help us stop on a dime when things get out of hand. The Juliana Roubion Carbon S Mountain Bike is the perfect one-bike quiver for everything from days spent hitting step-ups at the bike park to chasing the top spot of the podium of our local enduro race. Note that the size-extra small Roubion is built with two 27.5in wheels to better suit smaller riders.

*Due to a high demand in the global supply chain and bike industry since the start of the pandemic, material weight and exact components are subject to change. We are working diligently to keep tech specs updated, and any adjustments will be of equal or better spec level. If you have any questions, reach out to a Gearhead by chatting online or calling 1-888-276-7130.


  • Mixed-wheel trail slayer for big days on the mountain
  • Carbon C frame construction is lightweight, strong, and responsive
  • 29in wheel up front rolls up and over boulders with ease
  • 27.5 rear wheel provides an agile and playful ride feel
  • 150mm of VPP rear travel paired soaks up big hits
  • 160mm Fox Performance 36 fork helps keep us locked on our line
  • SRAM GX Eagle drivetrain provides crisp shifting and low mainitence
  • Flip-chip allows for quick geometry changes
  • Item #JLIC07G
Frame Material
Carbon C
Rear Shock
RockShox Super Deluxe Select+
Rear Travel
Fox 36 Float Performance
Front Travel
Cane Creek 40 IS
SRAM GX Eagle, 12-speed
Rear Derailleur
SRAM GX Eagle, 12-speed
SRAM GX Eagle 148 DUB
Chainring Sizes
Crank Arm Length
[x-small] 165mm, [small, medium] 170mm
Bottom Bracket
SRAM XG1275 Eagle, 12-speed
Cassette Range
SRAM GX Eagle, 12-speed
Brake Type
4-piston, hydraulic disc
Avid Centerline [front] 200mm, [rear] 180mm
Burgtec RideWide Alloy
Handlebar Width
Juliana House
Burgtec Enduro MK3
Stem Length
Juliana Segundo
RockShox Reverb Stealth, 31.6mm
Seatpost Travel
[x-small] 100mm, [small] 125mm, [medium] 150mm
RaceFace AR Offset 30, alloy
DT Swiss 370
Front Axle
15 x 110mm Boost
Rear Axle
12 x 148mm Boost
Tire Clearance
[rear] 27.5 x 2.6in
[front] Maxxis Minion DHF 3C MaxxGRIP EXO TR, [rear] Maxxis Minion DHR II 3C EXO TR
Tire Size
[front, x-small] 27.5 x 2.5in, [front, small, medium] 29 x 2.5in, [rear] 27.5 x 2.4in
not included
downtube protector, chainstay protector, shock fender, shuttle guard
Claimed Weight
enduro, trail
Manufacturer Warranty
[frame] lifetime