This is how in 1974 people made an "Extralight bike". With a Titanium frame and customizing all the equipment. I think it was a difficult hard work but effective. Making holes on specific places was a good solution. Look all the details!, they are curious and amazing. The drilled rims, stem, seatpost, hubs, front derailleur, etc etc
The total weight is 7,4kg. Frame size 55.5. Incredible!!!
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