前面的10~12這是軸心直徑10MM, 12MM.後面的135為登山車標準後花鼓間距135MM沒錯RUSH 5原廠配後HUB規格為:FH-M475S (silver)Brake Compatibility DiscOLN 135mmAxle 146mm 10mm32/36 holeSpoke Hole Circle 61mmCentre to Flange:R 21.75mm, L 35.35mmSpeed Compatibility 9/8 Speed.不對請指正!!