Disc brakes: Centerlock vs 6 bolt

Totally agree. I think you can argue either way as to whether 6-bolt or CL is inherently better but the facts are that CL is now the standard.

Just think it’s helpful for the OP (& others) to understand why it’s the standard and that it isn’t necessarily technologically superior to 6-bolt. I get your point re:Zipp et al. but in this case given it’s dominance of the OE groupset market, Shimano has enough clout to define standards like this.

FWIW, I absolutely do not miss the pain of having to unscrew & then refit 12 bolts every time I travel with my bike…

Shimano has enough clout to define standards like this.

If that were always the case we’d be riding rapid rise.

Have you used adaptors for 6 bolt to centerlock? I think this solves the bolt head issue but also gives the simplicity of ease of finding rotors anywhere as well as the cost saving from 6 bolt vrs centerlock,

http://www.thelegion.com.tw/images/pro/adaptor/center.jpg

Adaptors add unnecessary weight.

How so?

Rotors are never listed with the center lock ring in weights.

Above shown the legion rotors, floating rotor. 1PRIMUS 2PC Pat. PendinD

140 mm rotor (78g) plus their centerlock adapter (16g) is 94 grams.

Trp centerlock 100 mm is 100g without float
Sram centerline Centerlock with float is 102 grams

So, actually no weight gain, weight savings, easier and cheaper to replace.

Rotors, chains, cassettes are wear and tear items.

If you can save and still get amazing quality why not?

Have you used adaptors for 6 bolt to centerlock?

I’ve seen these adapters, but they all seem to be for centerlock to 6 bolt. Are you saying there is a 6 bolt to centerlock adapter as well? If so, do you have a link to them?

I currently have a 6-bolt setup but would like the option to run centerlock if possible, but haven’t seen that type of adapter available.

Centerlock all the way.

BUT if you need to do 6-bolt, then a little battery powered driver with a T25 is really nice to have.

I have a few of these kicking around.
https://images.homedepot-static.com/productImages/20c0f241-2931-4388-a0cf-0dd55c53995b/svn/ryobi-electric-screwdrivers-hp54l-64_1000.jpg

“I currently have a 6-bolt setup but would like the option to run centerlock if possible, but haven’t seen that type of adapter available”

That isn’t possible.

sorry meant to use 6 bolt rotors on a center lock hub. there is nothing going the other direction

While we are on the subject of rotors, let me ask another question, this time concerning size. Keeping in mind that this is for a TT/tri bike (and I weight 147 lbs / 67 kg), I suppose that the argument in favor of 140mm is weight savings and in favor of 160mm is better heat dissipation. Is there anything else to consider?

Buy Shimano IceTech rotors in 160mm.