It has been upgraded with BBB Aluboy jockey wheels.
SHIMANO ZEE RD-M640 CLUTCH- SHORT CAGE 10 SPEED REAR MECH,DERAILLEUR MTB, S465
Ultegra RD-6700 Rear Derailleur 10Speed short cage
Shimano FH-M640 Complete Freehub Freewheel Body - Y3TS98060 - Shimano Zee
Shimano Deore 10-Speed HG50 with Shimano Zee Shifter Rear Derailleur
Shimano Deore 10-Speed Derailleur With Shimano Zee 10 Speed Shifter
Shimano Zee 34T Single Front Chainring 104mm BCD FC-M640 M645 MTB
