Rear side, interior junction. This type is used by storing it inside the frame near the bottom bracket. It is exclusively for frames that correspond to the interior type. Connector: 4 locations Compatible EW: EW-SD50
Product model number: I-SMJC41 Wheel size: 26 inches Battery included or built-in: No Product size: 10 x 3 x 3 cm; 20 g
