Originally Posted by
maddog34
the biggest factor is what grease is used... then seal drag comes into play... Sealed "Cartridge" Bearings have Twice as many seals involved.... and more balls pushing through the grease...
seeing the "spin test" posted above makes me laugh... the weight of the rim, tire and spokes is not mentioned at all, and there was no standard for RPM at the start of the "test"... etc.
also... the hubs' axles are QR type... guess what changes a bearing's SIDE loading when set differently... a QR.
note #2... the "normal" hub is a Box Store Tourney hub, on a Mongoose...
i've always had best results from cup/cone hubs, as far as least resistance.... and the Shimano Hub grease works fantastic... my original Dura Ace hubs are still working perfectly, since 1983... they were re-greased every year when my Trek was my only bike, and only transportation.
as a kid, i used light weight red silicone grease that was made for my Aurora HO scale cars... it worked very well, and i could find it easily then. that grease was in the hubs of my Mitzutani SuperLite factory race bike when i hit 53mph on flat ground... and also when i hit 72mph on that same bike riding west from Government Camp, Oregon on Hwy 26.
I will try the Shimano grease to see its results.
The test has its flaws, and maybe I was wrong to think in this way but I think it's better to ask and understand the issue better than to believe a wrong idea. Maybe it was a mistake from me to mostly look at the big difference in the times that the wheels spun, but isn't the difference too big not to be taken into consideration ?
Could you please explain what you mean when you say with the hubs' axles being QR and with the bearing's SIDE loading when set differently ?