Product Description The Crank Armor XL crank guard by Zefal protect wider carbon cranks from stone impacts and blows. They are easy to install and their material makes them particularly durable. Specifications:Application:Cross Country, All Mountain, EnduroMaterial:Composite materialDimensions:52 x 42.5 x 17.5 mmCompatibility:SRAM:XX1, X01, XX, X0, Red, Force, RivalFSA:SL-K ABS, SL-K Modular, SL-K Carbon Lite, Dyna Drive, Alpha Drive, KFX, GradientShimano:XTR M9200 / M9100 / M9120 / M9130, Dura-Ace R9000 / R9100 / R9200, Ultegra R8000 / R8100, SoraRotor:REX 1, REX 3, 3D+Campagnolo:Super Record, Record, Chorus, Potenza, Veloce, AthenaTruvativ:X0, Stylo Carbone DUBStronglight:VoraceRace Face:Next, SixcFeatures:for large carbon cranksrobusteasy to mountManufacturer Number:262 Contents:2 x crank guards Manufacturer: Zéfal SA 1 Route d'Ouvrouer 45150 JARGEAU France zefal@zefal.fr