V3.1 UPDATES

V3.1 brings the biggest update to the Mini yet. The frame now uses the same rack-mounting system as the Cargo and Mini-Max, opening the door for upgrades such as the tilting rack bracket. The rack itself has been redesigned with round tubing for a cleaner look, and for dynamo-light compatibility. With the new rack comes new webbing, using the v2 dual-axis design for the round-tube rack that also comes with the Nano.

For the update, we’re also introducing the V3.1 fork, which has already been added to the Cargo and Mini-Max models.

The biggest change is the replacement of the XS with a Step Through (ST) version, to allow for a bigger audience to be able to fit the Mini and make the bike easier to use for anyone wanting to run rear-mounted child seats.

The OMNIUM Mini is a fast, agile reimagining of the short john bike, built to handle surprisingly heavy loads. Its compact size makes it easy to manoeuvre and integrates simply with both smaller residences and multimodal transport.

The front rack is ideal for anything too bulky and uncomfortable to carry on your back. You can keep your belongings in sight and carry serious weight all day without the bike feeling overloaded.

The 29-inch rear wheel helps the Mini effortlessly keep pace over longer distances, giving it an edge over other short john designs. Full rear rack mounts let you attach a range of panniers or rack mounted child seats, ideal for urban commuters.

Unlike many cargo bikes, the Mini rides like a regular bike. It feels quick, stable, safe and intuitive. Adapting to the Mini takes minutes and you quickly wonder how you managed without it.

DESIGN

The Mini is designed around a 55 mm (2.15 inch) tyres front and rear. Bigger tyres come with plenty of benefits, and these are the ones that matter most. High volume tyres run at lower pressure, which gives you a natural layer of cushioning between you and the road. The result is more comfort, more control, and an easier ride on rough surfaces like gravel, cobblestones, and battered city streets.

We have also updated the frame with the new v3.1 segmented fork that still comes with thru axles. Thru axles first appeared on downhill mountain bikes in the late 90s, and these days they are the standard on most disc brake bikes. They make perfect sense on a cargo bike. This setup increases stiffness, improves braking performance, handles heavy loads more securely, and reduces the chance of incorrect installation or brake rub.

For the V3.1 iteration of the Mini, we have chosen to replace the XS with a new Step Through size.

The new size still accommodates people under 165cm but also opens up the possibility for taller people that for any reason wants a different entry point to a horizontal top tube to now also be able to fit the Mini.

Frame MaterialDouble Butted Chromoly Steel Frame
SizesST (Step Through), S, M, L, XL
Rack Dimensions400x500mm
Seat post diameter31,6mm
Seat post clamp size34mm (ST 34,9mm)
Fork Brake MountIS – Disc only
Rear Brake MountDependent on insert choice – Disc only
Front Wheel406, 15x100mm spacing
Rear WheelTA Insert: 622, 12 x 142mm spacing, disc only
QR Insert: 622, 10 x 135mm spacing, disc only
Tyre Clearance Front55mm with mudguards
Tyre Clearance Rear55mm with mudguards
Thru Axle Front15×100, 125mm long, 17mm thread length, 1.5mm pitch 
Thru Axle Rear12×142, 172mm long, 19mm thread length, 1.75mm pitch 
Headset1 1/8” Ahead
Bottom Bracket68mm BSA
GearsFor 1x rear derailleur gear, single speed or internal hub gears
Rack BoltM15 x 15mm
Rack WeightTBU
Frame Kit WeightTBU
Maximum Loading Weight on Front Rack50kg
Maximum Total Loading Weight Incl. Rider125kg

The Mini V3.1 uses the same rack-mounting specs as the Cargo and Mini-Max, opening the door for upgrades such as the tilting rack bracket – Because if the changes to the mounting interface, the Mini v3.1 is not able to accommodate the the square tube rack from previus Mini interations

Mini V3.1Step
Through
S (52)M (54.5)L (57)XL (60)
STL – seat tube length (c-t)520520540570600
TTL – top tube length (c-c / actual)545520540570600
Stack552552572601.5630
Reach380355369390.5411.5
SO – standover heightN/A767786.5815.5844
BBH – bottom bracket height288288288288288
BBD – bottom bracket drop8181818181
STA – seat tube angle73.37373.573.573.5
HTA1 – head tube angle rear73.573.573.573.573.5
WB – wheelbase1030,81006.51026.510571086
A-C – axle to crown298,5298298298298
R – rake2525252525
T – trail50,550,550,550,550,5
CSL – chainstay length462462462462462
FL – full bike length1660163616561686.51715.5

Frame
Fork
Headset
Seat clamp
Rack
Thru axles front
Choice of QR dropouts or 12mm Thru Axle dropouts and axle
The fork always comes with 15×100 Thru Axle regardless of the choice of insert.
Does NOT include spacers for headset or kickstand

BUILD NOTES

Brake Standards

Mini frame kits come standard as IS(post mount) – We offer multiple inserts, make sure the ones you choose are compatible with the wheel and drivetrain you are installing – All of the inserts come with IS brake mount.

Headset & Fork Compatibility

Frame kits requires a standard 1 1/8 headset for straight steerers, make sure to check the spec sheet for the correct sizing of the headset – All Mini’s comes with a headset installed.

Drivetrain

Any 1×11 speed and newer flatbar drivetrain from Shimano or Sram will provide compatibility and great shifting.

Bottom brakcet shell is a 68mm BSA, make sure you get a crankset that is compatible.

Tyre Clearence

The Mini has a max tyre clearence of 60mm without mudguards.

If you are in doubt contact you local bike shop