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Would you ride a 134kg concrete bike? Plus Kask x Paul Smith helmet, 'Zwift and Mario combined' + more

Have you ever dreamed of riding a bike made out of solid concrete? Probably not, but these folks have built one anyway

As we move into autumn we've got some seasonal clothing and bags from 7mesh and Chrome Industries for you, plus another new virtual training platform that merges cycling and gaming like we've never seen before. First, though, time for something completely different... 

These guys have built a concrete bike... and we have no idea why

We’ve all wondered what it would be like to build and ride a concrete bike, right? No? For the purposes of Tech of the Week, would you mind just playing along for a bit? Cheers.

Wonder no more because Play to DIY has only gone and done the hard work for you, and chronicled everything on a video they’ve stuck on YouTube.

This isn’t just some half-arsed effort. No, the bike takes proper bearings – they’re not concrete – and has a functioning drivetrain. The only things it really lacks are brakes. We’re guessing that concrete doesn’t provide a good braking surface. You probably wouldn't want to go too fast on a bike weighing 134.5kg anyway. Play to DIY has even constructed a concrete helmet and glasses.

Does it work? You’ll have to watch the video to find out.

You might be wondering why Play to DIY has spent a whole lot of time and effort building a concrete bike. We’ve watched the video a couple of times and, yeah, we're still none the wiser.

We’re indebted to Canadian Cycling Magazine who picked up this video first. 

Chrome Industries debuts FOG series of reflective bags

Chrome Industries has launched its new FOG series across its heritage lines and other selected bags. They are all made from laminated TPU and 1050 denier nylon and come in a steel grey finish that reflects any light that shines on it.

2022 Chrome Industries Barrage Cargo Backpack - 1 (1)

“These bags are stealthily understated and discrete in the day, but poised to deliver reliable, stand out reflectivity at night or in low light conditions,” says Chrome.

Read our review of the Chrome Industries Barrage Cargo Backpack 

Chrome’s waterproof Barrage Cargo (£200) rolltop backpack has had the FOG makeover, as have the Buran III (£190) and Citizen (£180) messenger bags and a host of smaller bags.

2022 Chrome Industries Burran III messenger bag FOG - 1

The Chrome Industries FOG collection can be found at selected retailers and on

Find out more here

Paul Smith expands cycling range with Kask Wasabi helmet

The Paul Smith fashion brand always has a sizeable cycling range and it has added to it with a new edition helmet produced in association with Kask.

2022 Paul Smith Kask Wasabi helmet Motion Blur - 1

When it comes to helmets, Paul Smith takes existing Kask designs and gives them new finishes. Kask Protone and Utopia helmets were in the range already but this is the first time that the Wasabi has been added.

The Paul Smith + Kask Motion Blur Wasabi Cycling Helmet is £295.

Find out more here

Kinix: “Imagine combining Zwift and Mario Party in one game”

A Japanese company has launched a new platform called Kinix which combines cycling and video-game technology, and it looks like no other cycling-based games we've seen before.

2022 Kinix online game - 2

Created by a group from Keio University in Tokyo, Kinix is “a smart bike trainer-based experience featuring four party-style games where players compete against three other participants in real-time”.

Its developers say, “Kinix takes advantage of the data fitness devices already have, such as cadence, power, speed, distance, and steering. It transforms it into adrenaline-pumping feedback like graphics, points, and character movements that make the players engage with the game and forget they are moving.

2022 Kinix online game - 1 (1)

“Each game has its theme, utterly different from the next. One minute players compete in a tank battle atop a snowy mountain, the next a disco dance battle in an 80s club, and another a motorbike tug of war in a rusty motorbike shop. Every challenge is unique in its own right, making for a refreshing and varied gameplay experience.”

The Kinix creators are currently experimenting with augmented reality (AR) and mixed reality (the merging of real and virtual worlds) technology “to take the experience of working out in the metaverse to another level”.

Find out more here 

7mesh introduces new WTV clothing for autumn

7mesh has launched its autumn collection featuring a new WTV (Wind, Thermal, Ventilation) fabric that’s designed “to provide comfort on chillier rides from start to finish”.

2022 7mesh Seton jersey - 1

“To create a single fabric accommodating changing conditions and output, [we] focused on air permeability,” says 7mesh.

“The two-part construction of WTV provides a high-density stretch woven outer face that acts as a wind regulator, backed by loft insulation with brushed yarns to capture warm air. In use, the trapped warmer air sits at higher pressure than the cooler air on the outside. This differential helps balance the system by pushing some of the warm air and moisture out.”

Check out our 7mesh clothing reviews here

WTV is being offered in eight styles, four for men and four for women, including the Seton Jersey (£170) which we have on the way for review. The jersey is designed to be stretchy for a close fit. We'll let you know how we get on with it as soon as possible.

Find out more here 

Mat has been in cycling media since 1996, on titles including BikeRadar, Total Bike, Total Mountain Bike, What Mountain Bike and Mountain Biking UK, and he has been editor of 220 Triathlon and Cycling Plus. Mat has been technical editor for over a decade, testing bikes, fettling the latest kit, and trying out the most up-to-the-minute clothing. He has won his category in Ironman UK 70.3 and finished on the podium in both marathons he has run. Mat is a Cambridge graduate who did a post-grad in magazine journalism, and he is a winner of the Cycling Media Award for Specialist Online Writer. Now over 50, he's riding road and gravel bikes most days for fun and fitness rather than training for competitions.

Add new comment


RoubaixCube | 1 year ago

At least the cycling mafia will have an easier job. All they'd have to do is leave you clipped in and roll you into the deepest part of the river.

No need for cement shoes.

Steve K | 1 year ago

Excellent punnage all round - well done everyone.

mark1a replied to Steve K | 1 year ago

Yeah but sooner or later everyone will run out of puns and we'll be back where we started, the story will have gone blue circle.

janusz0 | 1 year ago

There is no need for a concrete bike to be much heavier than a steel bike.

I recall an article, many years ago, in New Scientist where an organisation with a name on the lines of "Concrete Resarch Association" or similar, was demonstrating concrete coil springs as car suspension.  Apparently if you get the proportions and aggregate sizes* precisely right, you can have concrete that behaves like spring steel.  So I imagine that you could extrude thin walled concrete tubes or cast entire monocoque frames, wheel rims, handlebars, etc. in concrete.  It wouldn't beat carbon or other exotic materials, but It might be light enough to carry up your stairs.

* very fine agregates.

chrisonabike replied to janusz0 | 1 year ago

And best of all you can grow your own concrete (per Mike Graham) so it's probably carbon-neutral - not that he'd want us to worry about a bit of weather!

Mungecrundle | 1 year ago

One word of caution about the cement bicycle. Never attempt to ride one that has been built by ducks...

It will be full of quacks.

Sriracha | 1 year ago

I guess it's the logical next step after gravel bikes?

hawkinspeter | 1 year ago

It annoys me when people misuse the words concrete, asphalt and gravel. It's all about cementics.

Sriracha replied to hawkinspeter | 1 year ago

But we have to accept words change their meaning over time - they're not set in stone.

Sriracha | 1 year ago

They said I had to ride a ton to qualify for Elite membership.

chrisonabike replied to Sriracha | 1 year ago

Yeah - it's only for the hardcore. #tourdeportland

ktache | 1 year ago
1 like

Couldn't find the FOG range on the Chrome site, but did discover that they do reflective laces.

pockstone | 1 year ago

Perfect for a hilly sportive in the Lakes...the Fred Flintston.

...I'll get my concrete overcoat.

hawkinspeter | 1 year ago

How do you start a concrete cycle race?

Ready, get set ...


I once saw a nun washing her garments in cement - I thought that's going to be a hard habit to break.

Mungecrundle replied to hawkinspeter | 1 year ago

If the whole team uses concrete bicycles in the race, do they get an aggregate time?

Sriracha replied to Mungecrundle | 1 year ago

I think they'd use the weighted average.

mark1a replied to Mungecrundle | 1 year ago

These comments have reached rock bottom. 

Sriracha replied to mark1a | 1 year ago

I disagree, I think there's mortar come.

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