Big Bad Jumbo

745,00  incl. VAT

SKU: 47871 Categories: , ,


The Big Bad Jumbo has landed!
As Jimmi, the Founder of Omnium, has progressed more and more in to the world of Mountain Bikes, we thought it about time to try and make a small batch for our selves. And this once in a decade frame is not to be messed with. We give to you 5 different sizes of monster 29+ Hardtails (27.5 for S & XS), coated with a special crackle coating that will make your neighbour look twice.


NB! Frames only come with dropout inserts and thru axle – there is no headset, seatpost clamp, or fork.


The Omnium 29+ frame is designed for fun and bumpy rides. A hard tail and geometry for a suspension fork makes for the perfect fun forest bike. The geometry is made for a 506mm axle to crown fork, which allows for about 100mm of suspension, on top of big juicy rubbers. And gussets on down tube and top tube makes sure the frame won’t fail you.

The frame runs the same adjustable rocker dropouts, as are seen on our line of V3 bikes (CXC, Cargo, Mini-Max, and Mini). However, these are made with boost spacing, 148×12, and the frame comes with 12mm thru axle and gear hanger for external derailleur. Both brake and gear cables run externally, while there is internal routing for dropperpost. Seatpost measures 31.6 internally and 34.9 for seat tube collar.

Now we know that you like cages, so we have made it possible for you to put cages both on top or underneath the downtube, as well as made space for one on the seattube.

As mentioned the frames come in 5 different sizes – Medium, Large, and Extra Large are made for 29″+ while sizes Small and Extra Small are 27,5. All frames have 94mm or 3,7″ tire clearance.

Finally it is worth mentioning that the headtube is 44mm made for semi integrated cup/bearing in the top, and external at the bottom, for tapered fork (1 – 1/8 to 1 – 1/2).


Stack 600 mm 601.5 mm 606,5 mm 620 mm 624.5 mm
Reach 395 mm 431 mm 455 mm 496.5 mm 520.5 mm
Eff. Top Tube 540 mm 575 mm 600 mm 645 mm 670 mm
BB Height 315 mm 317 mm 328,5 mm 328,5 mm 328.5 mm
Head Tube Angle 67° 67° 67° 67° 67°
Eff. Seat Tube Angle 76.5° 76.5° 76.5° 76.5° 76.5°
Chainstay Lenght 415 mm 415 mm 430 mm 430 mm 430 mm
Seat Tube Lenght 360 mm 400 mm 440 mm 480 mm 480 mm
Standover Height 776 mm 796,5 mm 832 mm 859 mm 860 mm
Front Center 686,22 mm 721,1 mm 745,2 mm 792.6 mm 818.4 mm
Axle to Crown 506 mm 506 mm 506 mm 506 mm 506 mm
Fork Offset 51 mm 51 mm 51 mm 51 mm 51 mm
WheelBase 1095,7 mm 1130.7 mm. 1169 mm 1216.6 mm 1242.4 mm

Frame Specifications

Double-Butted Chromoly Steel Frame
5 Sizes: XS, S, M, L, XL

Seat post diameter: 31.6 mm
Seat post clamp size: 34.9 mm
Rear Wheel: 622, 12 x 148mm spacing, disc only
Front Wheel: – N/A – As no fork is inlcuded
Tyre clearance, front: – N/A – As no fork is inlcuded
Tyre clearance, rear: 3,3″
Headset: 44mm made for semi integrated cup/bearing in the top, and external at the bottom, for tapered fork (1 – 1/8 to 1 – 1/2)
Bottom Bracket: BSA 73mm
Gears: For 1x rear derailleur gear system
Recommended maximum loading weight including rider: 125 kg

Frame includes:
Frame, Dropout Inserts, and Rear Thru Axle

Does NOT include Fork or Headset