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How Berk built this astonishing 3.9kg road bike (2020) (bikeradar.com)
15 points by thunderbong on July 18, 2023 | hide | past | favorite | 2 comments


Ultralight really doesn't matter these days with e-bikes. There's no superlightweight revolution that will make the bicycle more accessible to the general public. The e-bike did that.

The UCI limit kills this for use in racing. It's not a tri/TT bike so triathlons (no UCI limit) doesn't want it. It's far too expensive, carbon components in easily worn places like the cogs and crank.

And a fixed saddle height? 187 lb limit (and with bike weight limits, don't push it because who knows what wattage + weight combos they actually tested with, IF they did testing.

A novelty. Would be interesting a decade ago, but even recreational bikers are getting assist motors, which are far more effective.


UCI Weight limit is 6.8kg. For anyone thinking about entering into a serious bike race with one of these bikes, it's too light.




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