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Thick Brake Rotors? Options?

DaveyBoyWonder · 2026-06-10T15:30:56Z

Just picked my bike up from the mechanic after having the brakes bled and we got chatting about removing the dead zone for XTs by fitting thicker rotors. I'm currently running 203mm fancy Ice Tech rotors (the triple layered ones) which have served me well but I like having a very on/off feel for my brakes so thinking about thicker rotors. Got told about Galfer ones but they're about £80 an end. A) is there a more cost effective option? B) will thicker rotors retain braking performance for big Alpine descents etc? C) anyone made the switch and any good?

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a11y

Posts: 4033

Full Member

Disappointed at no rationale given for the shark fins. I guess 'cos they look cool' doesn't tick the box for performance enhancement 😀

But I suspect it's similar to the extra sections of metal on the XTR rotors for heat dissipation:

Posted : 11/06/2026 5:30 pm

Ben_Haworth

Posts: 1830

Just to say that rotor thickness does change lever feel. It shouldn't. But it does.

Posted : 11/06/2026 9:17 pm

Onzadog

Posts: 21699

Full Member

For those saying it does, anyone care to theorise on the mechanism for that?

Posted : 11/06/2026 9:32 pm

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