L-TWOO | LTWOO V3 ERX ER9 2x12s / 2x11s Road Electronic Groupset Replaceable Battery APP Programming

The eRX and eR9 sold in this link do not come with batteries. You need to purchase two 18650 3.7V 2.96Wh power batteries and two CR2032 3V button batteries.eRX V3 Updates:Re-engineered shifters with significantly enhanced grip ergonomicsRelocated charging port to front derailleur (TYPE-C interface)Eliminated water-ingress risks from rear derailleur’s magnetic charging portUpgraded to 10,000 RPM motor derailleur:✓ Increased thrust force✓ Faster response speedeR9 V3 Updates:Relocated charging port to front derailleur (TYPE-C interface)Eliminated water-ingress risks from rear derailleur’s magnetic charging portUpgraded to 10,000 RPM motor derailleur:✓ Increased thrust force✓ Faster response speedYou can choose 2x12s or 2x11s by connecting to the APPeR9eRX

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