WTF: The Rungu Double-Fat

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Those crazy Californians just can’t stop inventing stuff, eh? Here we have the Rungu Juggernaut. It’s a twin front-wheeled fat bike designed to offer stability in all sorts of terrain, including soft sand. It’s been out for a year or so but it has somehow escaped our notice until now.

With its two front wheels controlled by linkages to two half-handlebars, it’s already in the ‘Eh, what?’ category. Add in a pair of ‘shoulder spaced’ fat wheels, twin disc brakes and a single 4.8in rear tyre and you have a bike that’s more ‘Look at me’ than Chris Eubank’s daily driver.

The Juggernaut – with added ‘e’
And in self-motivated guise
Rungu Kilimanjaro
How about twin 29ers for a bit more range?
Rungu side
A distinctive side profile


The Rungu comes in several versions – all equally bonkers. There’s a triple fat Juggernaut, the triple fat PLUS electric twist grip electric motor and then there’s the almost nearly normal version with twin 29er wheels called the Killimanjaro

The bike has appeared on the Gadget Show, showcasing some amusing tarmac characteristics. But hey, the Rungu isn’t for the road, it’s for the beach and beyond, right?

As Rungu says itself: “A platform for adventure, Rungu Trikes offer mobility and stability where a bike can’t go and a car won’t go.”

For more details, see its website:


Singletrack Editor

Chipps wasn’t around for the dawn of mountain biking in the UK, but he likes to claim that he arrived in time for second breakfast (about the time he shows up for work, then…) starting in the bike trade in 1990 and becoming a full time mountain bike journalist at the start of 1994. Over the subsequent quarter century, he has seen mountain bike culture flourish and diversify and bike technology go from rigid steel frames to fully suspended carbon fibre (and sometimes back to rigid steel as well.)

His riding style is best described as ‘medium, wheels on the ground, trail riding’ though he’s been spotted doing everything from endurance downhill racing to 24 hour cross country racing. He favours mid-travel trail bikes and claims to be wheel-size, gear, brake and tyre agnostic. In fact, his garage spans most bicycle flavours, taking in steel hardtails, carbon trail bikes, even a mountain bike tandem, along with road, touring and gravel/cyclocross bikes.

While he’s happy to chat about bikes all day, his real interest is in the people and places that bikes can introduce you to and he talks as fondly about the trails he’s ridden and riders he’s met as the bikes that took him there.

Comments (9)

    I’m sure there was a post about this last year?
    I can’t imagine it’s very stable, especially under cornering. But I think braking would also be a problem. With a disc on each front wheel, if there’s any difference at all in performance between the brakes, it’s going to veer to one side under braking – no?
    Add that to the possibilities of differences in the performance of 2 front suspension forks on the Kilimanjaro model would make me feel quite nervous!

    I bet “john the climber” has his name down for one 🙂

    Thanks for that Paul I just sprayed my laptop with cider 😉

    Beyond a certain steering angle will the front wheels not hit each other?

    Utterly bonkers

    Surely it’s made because they can and obviously for a laugh.

    “Surely it’s made because they can and obviously for a laugh”.

    And that’s how the world ended up with Jones’s — its a slippy slope.

    ps sorry Nige but we both know its true 😉

    If you are riding is deep, soft snow this has some benefit because front wheel wash-out is the main reason progress is halted – the double front wheel would ride-up easier and give some stability. Then again a tadpole, recumbent trike would be even more sensible, as Maria Leigerstam proved with her Icetrike ride to the South Pole.

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