BLADEZ E300 Owner's Manual page 15

STEP 3
Secure the the upper swinging handlebar (7L/R) to the handlebar post joint (4) with bolts
(38), spring washers (49) and washers (39).
#39 d8_¢32_2 2PCS
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#38 H8_16_S14 2PCS #49 d8 2PCS
#108 S13-14-15 IP_
49
3
39
49
39
R