Two Potenza groups here. Super reliable. I have Chorus carbon cranks. If I was going 12 I would keep cranks (and try first) and def not bother changing calipers, maybe even try keeping front mech. I would want campy cassette as they have sensible 11/34 ratios.
Two Potenza groups here. Super reliable. I have Chorus carbon cranks. If I was going 12 I would keep cranks (and try first) and def not bother changing calipers, maybe even try keeping front mech. I would want campy cassette as they have sensible 11/34 ratios.