42 SCREW 2 5 GB/T 15856.1-2002 ST4.2X19
43 SCREW 3 3 GB/845-85 ST4.8X13
44 OUTER CHAIN COVER 1 654*263*49 (507g)
45 LITTLE CHAIN COVER 1 108*37*3 (7g)
47 LONG FIXING TUBE 1 φ25*φ20.5*41
48 SHORT FIXING TUBE 1 φ25*φ20.5*9
49 INNER CHAIN COVER 1 451*260*2 (220g)
51 CHAIN WHEEL 1 P=12.7,Z=52T
58 FIXING NUT 2 2 M12X1.25 H=6
59 FIXING TUBE 1 φ16*φ12.1*35
61 FLYWHEEL 1 φ450*72(13KG)
62 FLYWHEEL SHAFT 1 φ12*160
63 FIXING NUT 2 1
16X16X5 (M10
64 B0TTLE HOLDER 1 117*85*90
65 RIGHT PROTECT COVER 1 192*75*188 (85g)
66 FIXING NUT 2
27*M20*15mm
68 SHORT FIXING TUBE 1 φ14*φ10.2*8.5
70 DOMED NUT 1 1 GB/T 802-1988 M6
71 SPRING COVER 1 32*23*2
73 PLASTIC FRAME 1 116*30*32
74 LITTLE PLASTIC 1 14*9*14
75 WOOLLY BLOCK 1 113*25*8
76 BOLT 1 2 GB/T 5780-2000 M5*30
78 LOCK NUT 2 GB/T 889.1-2000 M5
79 SPRING WASHER 1 2 GB/T 859-1987 5
80 BOLT 2 2 GB/T 5780-2000 M5*10
81 FLYWHEEL COVER 1 φ59*35
83 FLAT WASHER2 1 35*20*2.0