The new 240 MTB series featuring new EXP ratchet technology (rear only). Newly redesigned press-fit end caps allow easy tool-free maintenance and conversion. Contact free seals and high precision build guarantee smooth bearings. Rear hubs feature 36T ratchet mechanism with 10� engagement angle for instant transfer. Large surface contact area of ratchet provide improved durability and reliability. Straight pull spoke interface for improved handling and performance