URSA 29plus Backcountry

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URSA 29plus Backcountry

3,495.00

The ultimate all terrain bikepacking rig, the URSA 29plus Backcountry edition is ready for nearly any trail condition you can encounter on your next adventure. 29plus tires save fatigue on your body during long bikepacking days in the saddle. The URSA offers a stable ride while loaded down that can still deliver big fun on the trail!

Component Specs Below, contact us to additionally customize your build : Geometry in Photo Gallery

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Frame/Fork:

  • CHUMBA Frame: URSA 29plus 4130 - Double Butted Chromoly (Made in USA)
  • Rear Axle: Paragon Machine Works Stainless Steel Sliding Dropouts w/148x12 Thru-Axle (Made in USA)
  • Bottle Cage Bolt Set: 5mm Stainless
  • Fork: Surly Steel Fork w/ Rack and Cargo Cage Mounts 110x15 or MRP Rock Solid 490 Fork Carbon 100x15 (upgrade) or Rockshox Pike 100mm (upgrade)

Brakes:

  • Front Brake: TRP Spyke Alloy Mechanical Disc Brake Caliper Black 
  • Rear Brake: TRP Spyke Alloy Mechanical Disc Brake Caliper Black
  • Brake Levers: TRP ML930 Linear Pull Brake Levers Black
  • Front Brake Rotor:  TRP 180mm Rotor
  • Front Brake Adaptor: Shimano 180 PM
  • Rear Brake Rotor: TRP 180mm Rotor
  • Rear Brake Adaptor: Shimano 180 PM
  • Drivetrain:

  • Bottom Bracket: Shimano MT800 73mm BSA Threaded
  • Crankset: Shimano XT M8000 170-175mm
  • Chainrings: Shimano XT M8000 34/24T 2x
  • Cassette: Shimano XT M8000 11speed 11-42T
  • Chain: Shimano CN-HG601 11spd
  • Shifters: Shimano M8000 2x11-Speed
  • Cables and Housing: SP-41 Housing and Stainless Cable
  • Rear Derailleur: Shimano XT M8000 11-spd Mid Shadow Plus Clutch

Steering/Seating:

  • Headset: Cane Creek 110 Series ZS44/EC44 Tapered
  • Headset Spacers:  Cane Creek Alloy
  • Handlebar: Jones H-bar Alloy 710
  • Stem: Thomson X4 Black (we'll call you to select size)
  • Grips: ESI Extra Chunky and cork grip tape
  • Saddle: WTB Volt Pro
  • Seatpost: Thomson Elite 31.6mm x 410mm, no-offset

Wheels/Tires

  • Front Wheel: Stans Baron 29plus 110x15, Boost, comes tubeless installed
  • Rear Wheel: Stans Baron 29plus 148x12, Boost, comes tubeless installed
  • Front Tire: WTB Ranger TCS 29x3.0"
  • Rear Tire: WTB Ranger TCS 29x3.0"

Bikepacking Kit/Bagset

  • Frame Bag: Wanderlust Gear Divide Frame Bag w/ Daisy Chain Mounting System
  • Option to add additional Wanderlust Gear bikepacking bags (call or email)

Specs

  • Oversized 44mm Head tube for tapered or straight steerer tubes
  • 73mm Bottom Bracket
  • ISCG-05 for skid plates
  • 31.6 Seatpost Size
  • CHUMBA Custom half yoke chainstay and bridges
  • Room for four bottle on all sizes
  • Mounts for Cargo Cages
  • Rear Rack Mounts
  • 148x12 Boost Thru-Axle Rear
  • Stainless Steel Sliding Dropouts

The URSA BC edition is ready for your biggest, longest, most out in the boonies adventure. 

Frame Features:

  • 29 x 3.0" midfat wheelsize (best blend of comfort, traction, speed, and roll over)
  • CHUMBA USA Select Steel Frame (Oversized and Double Butted 4130 tubes) Made in USA
  • PMW Stainless Steel Sliding Dropouts w/replaceable hanger and dropout inserts
  • Boost chainline (Industry leading chain, tire clearance and shifting performance)
  • 73mm BB (comfortable for all day riding and giving more clearance frame bags)
  • Versatile geometry (a careful balance between trail ripper and all day bikepacking, get to camp and drop the bags, hit the singletrack!)
  • Cargo cage mount in main triangle and under down tube
  • Brazed on water bottle bosses and rack mounts 
  • Loads of tire clearance (room for mud and snow to go, fits wider 3.0" tire casings with ease.)
  • Room for three bottle on all sizes
  • Oversized 44mm Head tube for tapered or straight steerer tubes
  • Custom yoke with integrated ISCG-05 mount for skid plates