Niekto disponuje informaciami zo zakulisia shimana ? Ak by shimano chcelo tak prečo by nespristupnili licenciu ? Lebo DT swiss nechce ?
Ja si myslim, ze licenciu povodne Shimano spristupnit vobec nechcelo (mozno okrem DT).
V kazetach je duopol a jedine SRAM alebo Shimano mozu realne zmenit interface kazeta-orech. Iny vyrobca nabojov nema sancu - nemal by kazetu.
Sram to urobil a XD ponukol ako volny standard pre vsetkych.
https://www.xddriverbody.comShimano to urobilo, ale standard si chcelo nechat pre seba, aby vyblokovalo ostatnych vyrobcov nabojov (okrem DT - dolezity hrac vo vyssom segmente, s tymi sa dohodli) a predavalo nove
kazety len s vlastnymi (pripadne DT) nabojmi.
Priklad takehoto spravania z minulosti je ich Octalink. Ostatni potom vytvorili
ISIS standard.
S nabojmi to ale uplne nevyslo (Scylence nie je) a tak teraz zdielaju oneskorene Microspline, aby si na 1x trhu aspon s kazetami nieco trhli.
Veru museli ich experti dlho badat, kym taketo vymysleli...
(klasicke
orechy maju naozaj 9 výstupkov
)
https://patents.google.com/patent/US20190047324A1SUMMARY OF THE INVENTION:
[0003]
.... The sprocket support body includes at least
ten external spline teeth configured to engage with a bicycle rear sprocket assembly....
[0004]
With the bicycle hub assembly according to the first aspect, the at least ten external spline teeth reduce a rotational force applied to each of the at least ten external spline teeth in comparison with a sprocket support body including nine or less external spline teeth. This improves durability of the sprocket support body and/or improves a degree of freedom of choosing a material of the sprocket support body without reducing durability of the sprocket support body