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6.12 Speed Sensor 6.13 Tightening Torques and Tool
6.13 Tightening Torques
and Tool
Component Tool Tightening torque
Drive Unit
DriveUnit BDU310/350 on the frame interface
Socket wrench
insert size 13
28-30 Nm
DriveUnit BDU250C/255C on the frame interface
Socket wrench
insert size 13
25-30 Nm
Mounting plate on the drive unit Torx T30
Initial assembly (self-tapping):
13-15Nm
Subsequent assemblies (thread
already exists): 9-11Nm
Chain protection adapter on the drive unit Torx T20
according to manufacturer's
specifications
Spider nut on drive unit BDU310/350
(CAUTION: Left-hand thread!)
Spider Nut Tool 20–30Nm (on greased threads)
Lock ring,on drive unit BDU250C/255C
(CAUTION: Left-hand thread!)
Lock Ring Tool 20–25Nm (on greased threads)
Design cover Torx T20 1 Nm
Front piece on housing
(Active Line BDU310/350)
Torx T20
Initial assembly (self-tapping):
3 Nm
Subsequent assemblies (thread
already exists): 2 Nm
Cable guard (Performance Line CX) Torx T20 1 Nm
Crank arms on bottom bracket shaft (M15 x 1) Allen key size 8
according to manufacturer's speci-
fications (typically: 45-55 Nm)
Speed sensor
Sensor on frame Torx T20 3 Nm
Spoke magnet
Phillips screw-
driver size PH02
1 Nm
PowerTube
Charging socket base in frame (M3 x 14
)
Torx T10 2 Nm
Mount plate on aluminum angle,
mounting aid in frame cut-out
Torx T25 4 Nm
Lock (B) and threaded flange on mounting aid (M4 x
27)
Torx T20 3 Nm
Rack battery
Lock cover on the key cylinder Torx T15 2 Nm
Frame battery
Mount adapter on frame Torx T25 4 Nm
Mount casing Torx T15 2 Nm
Lock (not a Bosch spare part) on the frame Allen key size 4 4–5 Nm
Lock cover on the lock Torx T15 2 Nm
On-Board Computer and Control Unit
Clamping of on-board computer mount to handlebar Allen key size 3 1 Nm
Fastening of on-board computer to the mount (M3 x 8)
Phillips screw-
driver size PH02
1 Nm
Control unit clamping on handlebar Allen key size 3 1 Nm
Control unit cable on bicycle on-board computer mount
Phillips screw-
driver size PH00
0.1 Nm
6
INSTALLATION/
REMOVAL
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