Osella
Senior Retro Guru
Nowadays the calipers are pretty much the same, yes.
What you tend to find is that most brakes when directly IS mounted will fit a 160mm disc as 'standard'. You then get different mounts (you bolt the caliper to the mount, and the mount to the frame) for different size discs, which essentially just move the caliper further out from the hub, to allow clearance for the larger discs.
Broadly speaking, the caliper will be the same, and at least on cable discs you won't have the hydro disc situation where swapping front/rear, left/right is much more complex to avoid getting air in the pipes!
I would suggest given the frame and the fact it's a HT and light :!: you could easily manage on a 160mm disc.
Not much in it between centrelock and 6-bolt, except that centrelock is one of those Shimano ideas, and you therefore need Shimano discs which are compatible with Shimano/Shimano-type hubs...... :roll:
You can get adapters to fit a 6-bolt disc to a centrelock hub, but it's just more weight & hassle..
Perhaps go for it if you manage to find a really cheap centrelock hub, but otherwise I personally would go for regular 6-bolt..
What you tend to find is that most brakes when directly IS mounted will fit a 160mm disc as 'standard'. You then get different mounts (you bolt the caliper to the mount, and the mount to the frame) for different size discs, which essentially just move the caliper further out from the hub, to allow clearance for the larger discs.
Broadly speaking, the caliper will be the same, and at least on cable discs you won't have the hydro disc situation where swapping front/rear, left/right is much more complex to avoid getting air in the pipes!
I would suggest given the frame and the fact it's a HT and light :!: you could easily manage on a 160mm disc.
Not much in it between centrelock and 6-bolt, except that centrelock is one of those Shimano ideas, and you therefore need Shimano discs which are compatible with Shimano/Shimano-type hubs...... :roll:
You can get adapters to fit a 6-bolt disc to a centrelock hub, but it's just more weight & hassle..
Perhaps go for it if you manage to find a really cheap centrelock hub, but otherwise I personally would go for regular 6-bolt..