Note: These torque specs are for Bosch eBike System 2 parts: Purion, Intuvia, Kiox, Nyon, SmartphoneHub, PowerTube and PowerPack mounts, the BDU3xx and BDU4xx drive units, and the speed sensors. They don’t cover Smart System parts like the Kiox 300 and 500, LED Remote, Purion 200 or the Smart System drive units. Always check the current Bosch manual for your exact part before you tighten anything. If you’re not sure, call our service team at 718-643-4542.
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Components |
Tool |
Tightening Torque |
|
Purion |
|
|
|
Clamp the mount to the handlebar |
3mm Allen Key |
1nm |
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Components |
Tool |
Tightening Torque |
|
Intuvia |
|
|
|
Clamp the mount to the handlebar |
3mm Allen Key |
1nm |
|
Intuvia on mount |
Phillips Screwdriver size PH02 |
1nm |
|
Clamp the control unit on the handlebar |
Allen Key Socket |
1nm |
|
Control unit cable on the Purion mount |
Phillips Screwdriver Size PH00 |
Lightly tighten by hand |
|
Components |
Tool |
Tightening Torque |
|
Kiox |
|
|
|
Mount on stem (Ahead mount) |
Depends on the screw on the Ahead mount |
Follow specs from the Ahead mount manufacturer; max 15nm |
|
Kiox on mount |
Phillips Screwdriver size PH02 |
0.5nm |
|
Mounting plate on the mount |
2.5mm Allen Key |
1nm |
|
Cable box on the mounting plate |
2.5mm Allen Key |
Lightly tighten by hand |
|
Clamp control unit on the handlebar |
2.5mm Allen Key |
1mn |
|
Control unit cable on the Kiox mount |
Phillips Screwdriver PH00 |
Lightly tighten by hand |
|
Components |
Tool |
Tightening Torque |
|
Nyon |
|
|
|
Base plate on the mount |
Torx T10 |
1nm |
|
Nyon on mount |
Torx T10 |
0.5nm |
|
Clamp mount on the handlebars |
2.5mm Allen Key |
1nm |
|
Control unit on the handlebar |
2.5mm Allen Key |
1nm |
|
Control unit cable on the Nyon mount |
2.5mm Allen Key |
Lightly tighten by hand |
|
Components |
Tool |
Tightening Torque |
|
SmartphoneHub |
|
|
|
Clamps on mount, clamps on handlebar |
2.5mm Allen Key |
1nm |
|
Central strut on stem, Smartphonehub on central strut |
2.5mm Allen Key |
1nm |
|
Universal mount on SmartphoneHub |
Phillips Screwdriver size PH0 |
0.5nm |
|
Clamp control unit on the handlebar |
2.5mm Allen Key |
1nm |
|
Control unit cable on SmartphoneHub mount |
Phillips Screwdriver size PH00 |
Lightly tighten by hand |
|
Components |
Tool |
Tightening Torque |
|
PowerTube |
|
|
|
Aluminum plate on the L-shape mount |
Torx T25 |
5nm |
|
Mount system on L-shape mount / U-shape mount |
Torx T25 |
5nm |
|
Lock on threaded flange |
Torx T20 |
4nm |
|
Components |
Tool |
Tightening Torque |
|
Rack Battery |
|
|
|
Lock cover on the key cylinder |
Torx T15 |
2nm |
|
Components |
Tool |
Tightening Torque |
|
Frame Battery |
|
|
|
Mount adapter on frame |
Torx T25 |
4nm |
|
Mount casing |
Torx T15 |
2nm |
|
Lock on frame |
4mm Allen Key |
4 – 5nm |
|
Lock cover on the lock |
Torx T15 |
2nm |
|
Components |
Tool |
Tightening Torque |
|
Drive Unit BDU330 / 380 / 385 / 386 |
|
|
|
Drive Unit on the frame interface |
13mm Hexagonal Socket Wrench |
28 – 30nm |
|
Mounting plate on the Drive Unit |
Torx T30 |
Initial assembly (self-tapping), 13 – 15nm Subsequent assemblies (existing thread) 9 – 11nm |
|
Chain guard adapter on Drive Unit |
Torx T20 |
According to manufacturer specs, max 5nm |
|
Design cover |
Torx T20 |
2nm |
|
Front section of design cover on housing |
Torx T20 |
Initial assembly (self-tapping) 2nm, subsequent assembly 1.5nm |
|
Lock ring on the Drive Unit |
Spider Tool |
30nm |
|
Crank arms on the bottom bracket shaft |
8mm Allen Key |
Follow manufacturer specs |
|
Components |
Tool |
Tightening Torque |
|
Drive Unit BDU480 CX / 490P |
|
|
|
Drive Unit on the frame interface |
Torx Plus 40 |
20nm + or – 2nm |
|
Chain guard adapter on Drive Unit |
5mm Allen Key |
According to manufacturers specs, max 5nm |
|
Design Cover |
Torx T20 |
Initial assembly (self-tapping) 3nm, subsequent assembly 2nm |
|
Design cover on the chainring side |
Torx T20 |
Initial assembly (self-tapping) 3nm, subsequent assembly 2nm |
|
Lock ring on the Drive Unit |
Spider Tool |
30nm |
|
Crank arms on bottom bracket shaft |
6mm Allen Key |
Follow manufacturer specs |
|
Mounting plates (CCP) on the Drive Unit |
Torx Plus 25 IPR |
8nm |
|
Components |
Tool |
Tightening Torque |
|
Speedsensor Standard |
|
|
|
Sensor on frame |
Torx T20 |
3nm |
|
Spoke Magnet |
Philips Screwdriver size PH02 |
1nm |
|
Components |
Tool |
Tightening Torque |
|
Speedsensor Slim |
|
|
|
Sensor clip on the open end or frame |
Torx T20 |
0.8nm |