URSA 29plus 2.0

CHUMBA USRA 29plus (1 of 1).jpg
CHUMBA USRA 29plus (1 of 1).jpg

URSA 29plus 2.0

from 2,995.00

Roll over trail obstacles and carve the corners with the URSA's massive 29x3.0" tires! The URSA 29+ leads the industry in clean shifting with its 148x12 Boost hub spacing and loads of tire clearance, eliminating chain suck issues common with bikes in this category. 

Component Specs Below : Geometry in Photo Gallery

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  • CHUMBA Frame: URSA 29plus 4130 - Double Butted Chromoly (Made in USA)
  • Rear Axle: Paragon Machine Works Stainless Steel Sliding Dropouts w/157x12 Thru-Axle (Made in USA)
  • Bottle Cage Bolt Set: 5mm Stainless
  • Fork: MRP Rock Solid 490 Fork Carbon 100x15 or Manitou Magnum Pro 100mm Travel, Boost 110x15


  • Front Brake: Shimano XT M8000 Hydraulic
  • Rear Brake: Shimano XT M8000 Hydraulic
  • Front Brake Rotor: Shimano RT66 180
  • Front Brake Adaptor: Shimano 180 PM
  • Rear Brake Rotor: Shimano RT66 180
  • Rear Brake Adaptor: Shimano 180 PM


  • Bottom Bracket: RaceFaceTeam X-Type English Thread BSA 83
  • Crankset: RaceFace Chester 170mm-175mm
  • Chainring: RaceFace 32T NW
  • Cassette: Shimano M8000 11-46T XT Cassette 11 speed 
  • Chain: Shimano XTM8000 Chain 11 speed
  • Shifters: Shimano XT M8000 Right shifter
  • Cables and Housing: Shimano SP41 and Stainless Cable  
  • Rear Derailleur: Shimano XT M8000 Mid Shadow Plus Clutch


  • Headset: Cane Creek40 Series ZS44/EC44 Tapered
  • Headset Spacers:  Cane Creek Alloy
  • Handlebar: RaceFace Aeffect 35x760mm ,10mm rise, Black 
  • Stem: RaceFace Aeffect 35x40, 50, 60, 70mm
  • Grips: RaceFace Strafe Black Lock-on
  • Saddle: RaceFace Aeffect Black
  • Seatpost: RaceFace Evolve 31.6x400mm


  • Front Wheel: Sun Ringle Duroc 40 or 50 100x15, comes tubeless installed
  • Rear Wheel: Sun Ringle Duroc 40 or 50 157x12 Super Boost Plus, comes tubeless installed
  • Front Tire: Maxxis Chronicle 29plusx3.0" EXO TR
  • Rear Tire: Maxxis Chronicle 29plusx3.0" EXO TR


  • Oversized 44mm Head tube for tapered or straight steerer tubes
  • 83mm Bottom Bracket
  • ISCG-05 for skid plates
  • 31.6 Seatpost Size
  • CHUMBA Custom half yoke chainstay and bridges
  • Room for three bottle on all sizes
  • Mounts for Cargo Cages
  • Rear Rack Mounts
  • 157 x 12 Super Boost Plus Thru-Axle Rear
  • Stainless Steel Sliding Dropouts