Totally not my kind of bike, but this 17lb Scott Spark seems pretty impressive, and still quite usable, to me:
[url= https://happyride.se/forum/read.php/1/3118910/3252342#msg-3252342 ]More pics and part/weight list[/url]
Probably drop another pound if they took all the stickers off the wheels.
So i definitely think weight makes a big difference, far more than losing 3kg body mass.
So you are saying that an overweight person riding a bike 3kg lighter than their usual bike, will go up hills faster than if they lost 3kg and rode their usual bike?
I'd argue that besides the identical power to weight ratio, they might have gained some fitness too...
I remember someone did a test.. Rode a bike up alp dhuez 4 times on same power. First time normal, second time with added weight to them, third time with weighted wheels..and once with reduced pressure in tyres
/how-much-time-does-extra-weight-cost-on-alpe-dhuez/
The third time was slowest, so yes it makes a difference, at least the wheels do.
Edit.. Actually that's not answering the question as the weight was added to the bike rather than the person. Interesting all the same however.



