ISIS and Splined Cranks

Whats the difference between ISIS cranks and Splined cranks? Or is there no difference?

Cheers

ISIS is a standard and theoretically any ISIS crank should be fitable on any ISIS hub. Just Koox is not exactly using ISIS standard (slightly out of ISIS tolerances) so not 100% compatible with ISIS parts from other brands. For example you can use KH Moment or QU-AX Isis cranks on Nimbus ISIS hub.

Splined hub are using splines but each company is using is own standard : KH/Onza 2005 was using 36 splines, QU-AX yellow hub is using 10 splines.

All splined or ISIS hub are very strong but be careful is you want to mix parts from different brands.

Cheers.

thanks