This is a replacement set of two XLPower Belt Guide Mounting Blocks, suited for the XLPower 520 & 550 helicopters.
Specification:
Belt guide mounting block x2
M2.5x5 Screw x4
XL700 16T New Tail Pulley Upgrade (XL70T24-1)SPECIFICATION:16T Tail Pulley x 1Belt Tensioner x 13x9x4mm Bearing x 23x5x0.5mm Washer x 1Bushing x 2Collar x 1
XL700 17T New Tail Pulley Upgrade (XL70T24)SPECIFICATION:17T Tail Pulley x 1Belt Tensioner x 13x9x4mm Bearing x 23x5x0.5mm Washer x 1Bushing x 2Collar x 1