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Brandon Semenuk Rampage Trek Session Bike Build | EurekaBike

09 Oct 2021Jacopo V.

Brandon Semenuk's 2021 Red Bull Rampage bike build

Trek and SRAM have just released a video where they show master mechanic, Sean Murphy, of Fluid Function in Squamish, B.C. assembling one of the two builds Brandon Semenuk will be travelling with to the Red Bull Rampage, seeking an unprecedented fourth title.

Brandon Semenuk's 2021 Red Bull Rampage build is the bike you'd expect a five-time Joyride and three-time Rampage champion to ride.

With big travel, and big trick potential, his custom 27.5/26 mulleted Trek Session is set up with a one-of-a-kind BlackBox AXS drivetrain, and a 190mm single crown RockShox Zeb Ultimate.


Trek Session SRAM Rampage build details

  • Frame: custom built Trek Session 27.5" / 26" Mullet
  • Derailleur: BlackBox XX1 Eagle AXS short cage
  • Controller: SRAM AXS
  • Cassette: SRAM X01 DH
  • Chain: SRAM Eagle
  • Crankset: SRAM X01 DH DUB | 165mm, with custom crank damper
  • Fork: RockShox Zeb Ultimate | 190mm, 44m offset, 3 Tokens, 63.5 PSI, HSC open, LSC 9 clicks to closed
  • Shock: RockShox Super Deluxe Ultimate DH with MegNeg air can | 270 PSI, 4.5 tokens in Positive, 2 Bands in Negative, Rebound 5 clicks to closed, LSC 9 clicks to closed.
  • Front Brake: SRAM Code RSC | Routed through Zeb steerer tube.
  • Rear Brake: SRAM Code RSC | Extra long brake hose for 3 full rotations of handlebars.
  • Rotors: SRAM HS2 200mm (front & rear)
  • Wheels: Industry Nine 27.5" / 26"
  • Handlebar: Chromag OSX LTD
  • Stem: Chromag Ranger V2
  • Seatpost: Truvativ Noir T40
  • Front Tire: Maxxis Assegai 27.5 x 2.5" EXO+ Maxx Grip
  • Rear Tire: Maxxis Minion DHR2 26 x 2.4" DH Casing Maxx Grip
  • Saddle: Chromag Overture LTD
  • Grips: Chromag Clutch
  • Pedals: Chromag Synth

Check out the video 

See how Brandon's mechanic builds up this stunning rig piece by piece with sharp accuracy.



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