Infinity Cycle with Benny and Emily Zenga
Infinity Cycle with Benny and Emily Zenga (Image Credit: Zenga Bros)

Behold the Infinity Cycle, the world’s first double-decker touring bike

The Zenga Bros’ curious yet ingenious Infinity Cycle lets two riders swap positions mid-ride, carry all the essentials, and keep moving indefinitely. It’s just embarked on a tour, powered by Benny Zenga, his wife Emily, and their twin five-year-old boys
Tue, Mar 24, 2026 21:45
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Benny Zenga, a self-described ‘cinemacyclist’ from Vancouver, Canada, designed the Infinity Cycle 10 years ago – a bike built so two riders can switch positions mid-ride, allowing them to keep moving without stopping. Now, his family has set off on an updated four-person version, touring around Vancouver to promote their Be a Fool Kickstarter campaign. Let’s have a closer look at the two-person design and how it all started. 

Infinity Cycle 1
Infinity Cycle (Image Credit: Zenga Bros)

The Zenga Bros are a family who have spent more than two decades experimenting with unconventional bike designs, particularly tall bikes, and even filmed a short documentary with Red Bull titled ‘Tall Bikes Will Save The World’ . Benny Zenga’s adventures began with hand-me-down bikes, and nowadays, cameras and bikes define how he moves through the world.

“Tall bikes are something my brothers and I discovered through trial-and-error making art bikes,” says Benny.

“They were always really fun and seemed to stick around, so we naturally didn’t stop creating tall bikes – and then at some point, the ridiculous nature of it became ridiculously practical. Almost twenty years later, it’s become the only bike I want to take to the grocery store or travel across the world on.”

Over time, their tall bikes became moving workshops, allowing them to carry all the supplies needed. “You’ll see a bike give birth to another bike and skateboard ramps built in unexpected places,” says Zenga.

Infinity Cycle riding
Infinity Cycle riding (Image Credit: Zenga Bros)

This passion for reworking and reimagining bicycles eventually led to the creation of the Infinity Cycle around a decade ago – a design that allows two riders to share the workload and keep moving without stopping.

Benny explains the motivation behind the idea: “The only real problem with bicycle travel – tall or otherwise – is that it’s human-powered and humans get tired… Since e-bikes don’t exist in our world, we had to get creative.”

Unlike a traditional tandem, which also lets two riders share the workload, the Infinity Cycle stacks riders on top of one another – essentially a double-decker bike – with space to store supplies, and carry whatever else is needed. The idea is that when the rider on the bottom gets tired, they move to the top, and the rider on top moves to the bottom, creating a continuous cycle that keeps the bike moving forever.

Infinity Cycle Spoon Jingle Truck
Infinity Cycle Spoon Jingle Truck (Image Credit: Zenga Bros)

The Infinity Cycle comes packed with practical and quirky features. It’s equipped with three large front lights, plenty of front and rear reflectors, mirrors, and bottle cages. A ladder at the rear allows riders to climb to the top bike, while panniers and boxes provide plenty of storage. A large undercarriage adds more space to carry supplies.

In true Zenga Bros style, an assortment of spoons dangle from the frame at the rear, adding a playful touch to the touring setup.


Benny, his wife, plus their twin sons Oly and Ike have just started an adventure on the latest version of the Infinity Cycle, mounting four people, as they go on an open-ended tour in Vancouver to raise awareness for the Be a Fool book.

“With two riders, the Infinity Cycle could ride forever – now, with four, it will be able to go even further”, says Zenga.

Benny and his brother Willy Zenga have documented their adventures in the book, which they are currently funding through a Kickstarter campaign. The project is over 60% funded at the time of writing, and aims to inspire readers to tap into their creative potential by sharing 25 years of unconventional projects and adventures.

Emily is our track and road racing specialist, having represented Great Britain at the World and European Track Championships. With a National Title up her sleeve, Emily has just completed her Master’s in Sports Psychology at Loughborough University where she raced for Elite Development Team, Loughborough Lightning. Emily is our go-to for all things training and when not riding or racing bikes, you can find her online shopping or booking flights…the rest of the office is now considering painting their nails to see if that’s the secret to going fast…  

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60somethingcyclist 11 hours ago

@chrisonabike True, things went back to normal once the pandemic was over. In this case, however the problems are still ongoing, and aren't likely to be resolved in the near future. If anything, they're going to get worse. Food shortages are predicted because of the effect that the heatwave has had on crops. This is bound to push prices up. The Straits of Hormuz aren't likely to reopen anytime soon and the strategic oil reserves are running low. Russia is having to import petrol because its own refineries have been badly hit, so that's even more competition for an even more scarce resource. I think that more and more people are going to see cycling as a way of cutting household bills.

in: “Urgent need for stronger action”: Extreme heatwaves prompt fresh calls for UK government to prioritise cycling for short journeys
chrisonabike 13 hours ago

I think if "grown up" cyclists * are quibbling about ASLs we've very much missed the road safety point anyway. (Not to mention the wider "better transport choices" picture). ASLs are poor-to-useless "cycling infra", even for their design intent. If the idea is "for less confident cyclists" then a design that requires that you re-position in front of the motor traffic - waiting to accelerate - seems unhelpful. Of course they're only designed to help when traffic is stopped, and you can reach the front in time and if vehicles aren't already occupying them. As we're noting here drivers frequently ignore them - whether that be deliberate, a lack of road craft, because they were concentrating on following the vehicle in front, or because the paint has rubbed off. * Aside: shouldn't cycling also be safe and accessible for kids? Or should they only be allowed to do this when accompanied by sufficient qualified adults? Or be limited to parks and otherwise being driven around by their carers? Perhaps there is another way...?

in: Camera cyclist Dave Sherry laughed at by GB News presenters for correctly pointing out speed limits do not apply to cyclists during 20mph ‘debate’
Ben Graham 14 hours ago

Hi Bungle, I saw you follow-up comment. I can't imaging there's a tolerance of 4 seconds on camera enforced lights, seems an odd decision - an offence is committed if a vehicle starts crossing on a red, any tolerance is discretionary. There does seem to be some odd thinking about 'advanced stop lines' where the rules relating to them are identical to a regular stop line, as explained correctly elsewhere in the Highway Code. It does seem a regular offence. Where I live it doesn't help that some of them are very faint and disappear in rain.

in: Camera cyclist Dave Sherry laughed at by GB News presenters for correctly pointing out speed limits do not apply to cyclists during 20mph ‘debate’
Rendel Harris 15 hours ago

@ktache Not sure he's totally ruled out of the worlds yet (though I think it would be best if he doesn't), normal recovery time is about eight weeks but surgery can halve that...depending on the nature of the break he could be just about fit to ride by the time of the elite men's race, but he'll have missed a lot of training. Hopefully his managers and team will persuade him to wait until Lombardia, if not just to knock it off for the rest of the year.

in: “Impressively dumb” narrow cycle lane criticised as “box ticking exercise” after repainted lane barely covers double yellow lines; Steep gravel climb awaits Vuelta peloton + more on the live blog
Rendel Harris 16 hours ago

@Bungle_52 The Met told me a couple of years ago when rejecting a submission that they needed a clear three seconds of red visible before they would consider it for an RLJ prosecution. I pointed out to them that this meant that at 30 mph a driver could see a light change to red from 40 metres away and still get through without sanction, or 55 m if they accelerated to 40 as most do. They just replied "them's our rules..."

in: Camera cyclist Dave Sherry laughed at by GB News presenters for correctly pointing out speed limits do not apply to cyclists during 20mph ‘debate’
Bungle_52 16 hours ago

@Ben Graham I have just checked the footage from my report. The driver crosses the 1st stop line 4 seconds after the light turns red. All on camera from behind the vehicle. No further action. So I assume the margin is at least 4 seconds.

in: Camera cyclist Dave Sherry laughed at by GB News presenters for correctly pointing out speed limits do not apply to cyclists during 20mph ‘debate’
chrisonabike 17 hours ago

Oh, and active travel funding per head (in England at least) is laughable compared to other places. Plus it is delivered intermittently. It's more like a Blue Peter contest...

in: “Impressively dumb” narrow cycle lane criticised as “box ticking exercise” after repainted lane barely covers double yellow lines; Steep gravel climb awaits Vuelta peloton + more on the live blog
chrisonabike 17 hours ago

Yup, I see those opportunities being missed all the time in Edinburgh. When it gets really bad, dig it all up and put it back down again how it was. Contrast with what seems to happen in NL - when things are dug up the whole thing seems to get a "let's redo this according to the current standards" treatment. They even coordinate with the utilities, so that after a refurb the street isn't immediately dug up again because of leaking pipes / we suddenly realised the new estate being planned for round the corner will want broadband etc. Pros and cons of course - you may wait longer there for changes as smaller changes may be deferred until a major redo is due. (Though in the UK case you likely wouldn't get them at all...) It seems we "can't have nice things" in the UK in part because a) we have greater motor traffic speeds/volumes spead across "streets" / within urban areas b) the funding and organisational responsibility differs. Are we in the "Sam Vimes boots" territory (being too poor to afford better products which not only save money over time but actually work)? There is long term money pressure on LAs and it seems that due to poor construction and maintenance we have to regularly pour money into (pot-)holes in the road. And it seems there's no budget to check up on or enforce adequate standards from utilities work or even private building.

in: “Impressively dumb” narrow cycle lane criticised as “box ticking exercise” after repainted lane barely covers double yellow lines; Steep gravel climb awaits Vuelta peloton + more on the live blog
ktache 18 hours ago

Shame about the world champs defence. Speedy recovery. https://www.theguardian.com/sport/2026/aug/30/tadej-pogacar-vuelta-a-espana-cycling-crash-hospital-stage-nine

in: “Impressively dumb” narrow cycle lane criticised as “box ticking exercise” after repainted lane barely covers double yellow lines; Steep gravel climb awaits Vuelta peloton + more on the live blog
mdavidford 19 hours ago

I believe the accepted form for this kind of argument is "I know you are, you said you were, but what am I?".

in: Camera cyclist Dave Sherry laughed at by GB News presenters for correctly pointing out speed limits do not apply to cyclists during 20mph ‘debate’