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<http://schema.org/description>
"TRP’s two-piece rotors offer superior heat dissipation due to the aluminum center as well as excellent stiffness to provide you with confidence in your braking and lighter weight in 180/203mm sizes.  Two-piece is now combined with TRP’s new slotted rotor design now with a 2.3mm thickness for DHR and E-MTB only. Six recessed slots create channels to allow water, mud, and other debris trapped between the pad and rotor to escape under braking. When debris gets trapped between the pad and rotor braking power is dramatically reduced, these recessed slots maintain a more consistent brake feeling in mixed conditions.\n\nSizes: 180mm and 203mm\nSix slots to remove water, mud, and debris\nTwo-piece design for heat management and stiffness\n"
<https://janjiride.com/products/tr42-rotor>