Photos by Matias Stridsland (@stridsland_journal)
Omnium, best known for their line of utilitarian cargo bikes, just stepped into the world of mountain bikes. Omnium’s Founder, Jimmi “Jumbo” Bargisen, has been progressing more and more on mountain bikes, so they figured it was about time to make one of their own. The Big Bad Jumbo is the final product, a 29+ steel hardtail for fast and bumpy rides, finished with a fun crackle paint job that’s sure to garner some attention.
The Big Bad Jumbo is based around a 506mm axle to crown fork, which is about the equivalent of a 120-130mm travel suspension fork accounting for 20% sag—note that Omnium states it’s designed around a 100mm travel suspension fork, however. All that said, the photos above show the frame set up with a 150mm travel fork, so there’s a good chance it can handle more. The double-butted Chromoly steel frame has gussets on the top tube and down tube for extra strength, uses boost hub spacing, and has external cable routing and internal dropper post routing. There are bottle mounts inside the main triangle and under the downtube, as well as rear rack mounts for hauling gear. The Big Bad Jumbo comes in five sizes from XS to XL. The three largest are designed for 29+ tires, and the two smallest are better suited for 27.5″ tires. Omnium claims all sizes have clearance for 3.7″ (94mm) tires, but judging by the tire clearance photo with a 29 x 2.8″ Coronado above, we’d probably guess more like 3.0″.
As far as geometry, the Big Bad Jumbo falls right in line with some of our favourite semi-rad hardtail mountain bikes, including the Esker Japhy, Kona Unit X, and Salsa Timberjack. It has a modern 67° head tube angle, fairly short 430mm chainstays, and a generously long front end and wheelbase. The size large isn’t that far off from the Chromag Surface Voyager shredpacker we reviewed this year. See a geometry comparison below.
Omnium Big Bad Jumbo Specs
- Seat post diameter: 31.6mm
- Rear Wheel: 12 x 148mm spacing, disc only
- Headset: 44mm made for semi integrated cup/bearing in the top, and external at the bottom
- Bottom Bracket: 73mm BSA
- Gearing: 1x Drivetrains
- Recommended Max Weight: 125kg (275lb)
- Frame Includes: Frame, Dropout Inserts, and Rear Thru Axle
The Big Bag Jumbo is available as a frame-only for €745 (~$760 USD) and comes in an Orange Orange or Velvet Blue paint job. Learn more at OmniumCargo.dk.
Make sure to dig into these related articles for more info...
Please keep the conversation civil, constructive, and inclusive, or your comment will be removed.