I have a couple of nice cranks that are Isis. Middleburn and race face turbines.
If like to use them, but I don't know much about this standard, being used to square taper, octalink and various external standards.
They seem much like the octalink BB, albeit with different spline pattern that interfaces with the cranks. I've no clue as to the merits of this style over octalink, I've only really got experience with m952 BBS, which seem to be fairly robust, at least I've never had issues with the interface (though I have bought dodgy xtr crank arms where I assume ham fisted fitting or loose fitting have resulted in crank wear. Why did road and xtr have v1 spline and others V2?). How does the Isis sine compare?
One thing I have read seems to be the bearings, and the fact that they don't seem to last very long. Why would this be? It all seems quite similar to octalink, and for they matter square taper i.e. captive sealed bearings in the shell mated the the axle, so why are Isis prone to such short lifespans?
As I'd like to use the cranks, I'd like to understand the standard and ultimately source a couple of decent ones for use. Are there any considered better than others? Why? Is powerspline the same as Isis?
Stepping into an unknown and hoping the wise RB sages can help me understand the standard so I can get some cranks fitted. I'd like to run the turbines on mt GT lightning, they are lovely and red.
If like to use them, but I don't know much about this standard, being used to square taper, octalink and various external standards.
They seem much like the octalink BB, albeit with different spline pattern that interfaces with the cranks. I've no clue as to the merits of this style over octalink, I've only really got experience with m952 BBS, which seem to be fairly robust, at least I've never had issues with the interface (though I have bought dodgy xtr crank arms where I assume ham fisted fitting or loose fitting have resulted in crank wear. Why did road and xtr have v1 spline and others V2?). How does the Isis sine compare?
One thing I have read seems to be the bearings, and the fact that they don't seem to last very long. Why would this be? It all seems quite similar to octalink, and for they matter square taper i.e. captive sealed bearings in the shell mated the the axle, so why are Isis prone to such short lifespans?
As I'd like to use the cranks, I'd like to understand the standard and ultimately source a couple of decent ones for use. Are there any considered better than others? Why? Is powerspline the same as Isis?
Stepping into an unknown and hoping the wise RB sages can help me understand the standard so I can get some cranks fitted. I'd like to run the turbines on mt GT lightning, they are lovely and red.