I want to 2x check within the community if I got it right the compatibility question between Shimano components.
I have an old (~2006)
Sora groupset on my bike (2x8 speed). I upgraded last year to
Claris ST-2400 brake lever set (it is for 3x8 but with proper tuning can be used with 2x8).
Now I have to change my crankset
Sora FC-3301 175mm/52x39. I'm not 100% sure, but the
Claris FC-2450 seems to be compatible.
FC-2450are for 2x8 derailleur (what I have);
- both use Octalink axle profile, the
Octalink V2but for the old
FC-3301couldn't find what Octalink version is compatible with. However, for both the
BB-ES25bottom bracket is recommended (what I have currently). So I suppose
- both have 175mm arm length versions.
Did I miss something?
FC-2450a compatible replacement for the
If I understand well, the higher class Shimano groupset technologies are propagated to the lower class group set while time passes, so like in my case the old Sora set now is compatible with the Claris set, but not compatible with the new Sora set, right?
A cheaper solution would be if I change only the chainrings.
But I have no idea if a 2x10 ring set with the same number of teeth (52 and 39) and the same bolt circle (130mm) is compatible with my old chainrings for a 2x8.
Shimano Ultegra 6700 Road Chainring 2x10-speed
- I aks the only support at bike-components and they think is ok the FC6700 chain ring.