GXP Bike MTB Mountain Bike 32T/34T/36T/38T/40T corona corona corona per Sram 11/12S NX XX1 XO GX X9 vassoio a disco singolo economico|Bicycle Crank & Chainwheel| - AliExpress
Corona TRUVATIV/SRAM 28 Denti XO/X9/X7 BCD 80mm 2x10Speed Black ( Only With 42 ) | eBay
Sram Pedivelle Con Corone X0 GXP 120/80 BCD | Bikeinn