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Optibike
R8C and R15C Bolt Torques
Bolt Name
# Bolts
Wrench Type
Torque in-lbs
Crank Arm Bolts
2
M8 Allen
300-350
Chain Ring Bolts
5
M5 Allen
70-90
Chain Ring Spider
1
1 ¾ inch open
Rear Axle
2
M5 Allen
130-170
Front Axle
1 (15mm)
Over Center Clamp
See Manual Section
Brake Caliper
4
M5 Allen
55-70
Brake Rotor Rear
4
M5 Allen
60
Brake Rotor Front
6
Torx T25
35
Spokes Nipple
64
3.5mm open wrench
As needed
Handlebar
4
M4 Allen
45
Stem
2
M4 Allen
45
Seat Post Clamp
1
M4 Allen
40-60
Seat Mount
2
M4 Allen
30-50
Motor shell Clamp
3
M5 Allen
40-45
Pedals
2
15mm open end
300
Battery Mount
3
M5 Allen
45
Throttle
1
M3 Allen
8
Headlight Body
9
M2.5 Allen
6
Shock Mounts
2
M5 Allen
70-80
Lower Linkage
4
M8 Allen
216
Upper Linkage
4
M6 Allen
170
Brake Lever
2
Torx T25
35
Optibike R8C and R15C Manual