Originally Posted by
bonsai171
The vendors I found earlier were listing their Omniums as new.. Can't recall which website. Found a site this morning, that says the crank itself is 825g, and the bb is 106g:
https://www.thebikesmiths.com/produc...saAvZCEALw_wcB
If that is the case, Omniums are not an upgrade for me in terms of weight. Currently using Sugino VP130s (converted double road crank with a single chainring and shorter chainring bolts). That weighs in at 705g, and if I remember, the Tange BB i'm using is pretty heavy. If I do change the crank, I would like it to be lower weight.. Not sure if I would honestly notice any difference in stiffness, though I do feel some difference between the Shimano
105 5700 crankset (external BB system) and the VP130s.. I feel like the 105 crank transmits better.. Maybe that translates to more stiffness.. or just placebo effect lol.
Dave
Dave
To be honest... and I know I’m probably going to stir a big can of worms here... but from a machinists standpoint... someone who works with metals, and a lot of aluminum day in and day out I think the stiffness argument is just a selling point. Yes I will not argue that 7075 IS indeed a stiffer material than 6061. Especially on paper. But the amount of force needed to display the difference is quite huge. To the point that idk if it would be noticeable. I believe it is a superior alloy absolutely, but both are T6 and imho I think it’s more of a genius marketing ploy to get more $ for essentially the same product. Just my .02 cents. Anywhoo! Omniums are a great crankset regardless, and I would say that small amount of weight difference won’t be noticeable either. That’s just me though