Before you read on, here’s our KOJO Collective feature from our HA GIANG LOOP Tour last April – we just came back from the 2026 tour and will be back there in November, see KOJO for details!

WEIGHT WEENIE HELL / THE ALL-CONCRETE BICYCLE!

1–2 minutes

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Steel, aluminium, carbon, magnesium, bamboo, wood… and then… concrete?

No. I mean… yes?

A company called Play to DIY asked why the hell was there not a concrete bicycle option out there, especially when you can do one that comes in at just under 135kg – the exact weight is 134.5kg!!!

It rides, so, it’s a bike. They plan to do the next version with titanium quick releases, bringing the already impressive weight to 133.7kg…

The folks at Play to DIY said:

‘We made the first concrete functional bike in the whole world, it’s crazy! its weight of 134.5 kg makes it very unusual but its construction process is extremely entertaining, we experimented a lot to show you this result and I hope you enjoy it.’

The construction process is super interesting, have a ganders!

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