160mm lightweight rotor guide please

[alanmclean]

Hi, I just got my first disc road/cross wheels.

I have trp brakes and rotors. I had not realised just how much steel was involved in the rotors, they are like tractor parts!

I would be grateful for a guide/link to lightweight rotors. I tried a search on the forum but could find little, maybe looking in the wrong place.

Are they always steel? How much weight might I save? Does anyone make Ti ones? I presume alloy is not safe. I have seen some nice custom jobs but really just want mainstream manufactures please. (I should take off and weigh the current ones but I am to scared to see the number!)

Thanks and apologies if this has been covered elsewhere in which case a link would be great.

Alan

[nickcube]

Steel will always give you the best braking performance compared to other materials like aluminum and magnesium, which I believe are quite noisy as well. The two lightest 160mm rotors are the Ashima Ai2 and the KCNC rotor, which are 66g and low-70's respectively. Both of them can be brought on eBay pretty cheaply and do offer great weight loss for the price.

Most other rotors that come stock are generally ~100g each, so you should be able to save 50g at least quite comfortably. Take off your rotors and check out the weight, what rotors are you using?

[alanmclean]

Thanks very much. I will follow your leads. I have the standard spyre trp rotors. Frame is built for 160 so cannot go 140.

[bm0p700f]

Those spyre rotors are 100g. The ashima rotors are 695 and I would get them if I did not have a rack attached to my bike.