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Omnium Mini V3.1 Cargo Bike Frame Kit

*Price is for Frame Kit only (Pre-Order)
Your price: SGD$2,049.00
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Screenshot 2026-04-24 at 14-37-11 Mini V3.1 - OMNIUM Cargo Official Shop
Mini V3.1 SizeGuide
MINI V3.1 geo
Mini V3.1 black a
Mini V3.1 black b
Mini V3.1 black c
Mini V3.1 black d
Description

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.

 

Sizes

ST (Step Through), S, M, L, XL

Rack Dimensions

400x500mm

Seat post diameter

31,6mm

Seat post clamp size

34mm (ST 34,9mm)

Fork Brake Mount

IS – Disc only

Rear Brake Mount

Dependent on insert choice – Disc only

Front Wheel

406, 15x100mm spacing

Rear Wheel

TA Insert: 622, 12 x 142mm spacing, disc only
QR Insert: 622, 10 x 135mm spacing, disc only

Tyre Clearance Front

55mm with mudguards

Tyre Clearance Rear

55mm with mudguards

Thru Axle Front

15×100, 125mm long, 17mm thread length, 1.5mm pitch 

Thru Axle Rear

12×142, 172mm long, 19mm thread length, 1.75mm pitch 

Headset

1 1/8” Ahead

Bottom Bracket

68mm BSA

Gears

For 1x rear derailleur gear, single speed or internal hub gears

Rack Bolt

M15 x 15mm

Rack Weight

TBU

Frame Kit Weight

TBU

Maximum Loading Weight on Front Rack

50kg

Maximum Total Loading Weight Incl. Rider

125kg

 

Mini V3.1

Step
Through

S (52)

M (54.5)

L (57)

XL (60)

STL – seat tube length (c-t)

520

520

540

570

600

TTL – top tube length (c-c / actual)

545

520

540

570

600

Stack

552

552

572

601.5

630

Reach

380

355

369

390.5

411.5

SO – standover height

N/A

767

786.5

815.5

844

BBH – bottom bracket height

288

288

288

288

288

BBD – bottom bracket drop

81

81

81

81

81

STA – seat tube angle

73.3

73

73.5

73.5

73.5

HTA1 – head tube angle rear

73.5

73.5

73.5

73.5

73.5

WB – wheelbase

1030,8

1006.5

1026.5

1057

1086

A-C – axle to crown

298,5

298

298

298

298

R – rake

25

25

25

25

25

T – trail

50,5

50,5

50,5

50,5

50,5

CSL – chainstay length

462

462

462

462

462

FL – full bike length

1660

1636

1656

1686.5

1715.5

Frame kit includes : Frame, fork, headset, seat clamp, rack, thru axle front and choice of QR dropouts or 12mm Thru Axle dropouts and axle.