Prologo cpc nago evo tirox saddlea semi round saddle suitable for medium to long distance riding new tirox rails stainless steel for a lower weight than the old ti 14 rails greater resistance and vibration absorbtion tirox rail light alloy steel highly resistant to traction and torsion for its physical characteristics and light weight is used in the aviation and aerospace industry t irox then turns out to be a rail with a good balance between weight and strength that doesn t fear th