1． Light weight, Pusher with 3 titanium screws 7.6g, vs. stock pusher with steel screws 16.8g，over 50% weight reduction.
2． POM rollers jocky wheel contacts, less resistance and grinding effect. Your metallic jocky wheel will be protected.
3． Movement radius optimised, longer 1mm travel, easier to adjust for smotth shifting action. External 2 / 3 / 4 speed cogs compatible.
4． H&H value production with greater C/P.