HUB RR S/A 5sp RXRC5 CB 36 SL w/TRIM KIT/TWIST-SHIFTER TSC50/CABLE 1700mm 18T 185/135mm ROTARY 5-Speed internal geared coaster brake hub with gear ratio of 243%. 25% gear steps. Rotary gear selector without protrusions outside the frame. Designed for heavy duty use. A356 Aluminium hub shell. Compatible with 16 to 22 teeth sprocket. Item Specifications: Material: Aly, Color: Sil, Bearing Type: Sealed, Brake Type: CB, Use: RR, Hub Drilling: 36H, Wt: 2400g, Spacing / Axle: B/O 3/8, Gears: 5s Int, OLD: 135,