Rear Derailleur Servo
AssemblyA motorized cage assembly that shifts the chain laterally across the cassette sprockets, powered by a brushless motor and controlled wirelessly. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Rear Derailleur Servo parts and their functions
6 top-level parts · 7 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Servo Motor | 1× | Brushless DC motor, typically 5–15 W |
| 2 | Motor Gearbox | 1× | Epicyclic or spur gearbox reducing motor speed, ~100–300 rpm output |
| 3 | Cage Arm Assembly | 1× | Parallelogram linkage with tension and guide pulleys |
| 4 | Pulley Set | 2× | Upper tension and lower guide pulleys guiding the chain |
| 5 | Position Encoder | 1× | Sensor feedback confirming pulley position after each shift |
| 6 | Servo Mounting Bracket | 1× | Bolt interface for rear derailleur attachment to frame |
3D model
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Bill of materials for Rear Derailleur Servo
6 top-level lines · 6 rows shown · 7 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Servo Motor | electronic-groupset-servo-motor | 1× | 1 | · | part |
| 2 | Motor Gearbox | electronic-groupset-motor-gearbox | 1× | 1 | · | part |
| 3 | Cage Arm Assembly | electronic-groupset-cage-arm-assembly | 1× | 1 | · | part |
| 4 | Pulley Set | electronic-groupset-pulley-set | 2× | 2 | · | part |
| 5 | Position Encoder | electronic-groupset-position-encoder | 1× | 1 | · | part |
| 6 | Servo Mounting Bracket | electronic-groupset-servo-mounting-bracket | 1× | 1 | · | part |
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Where the rear derailleur servo is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed in 1 assembly
Sourcing: possible vendors
Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $2–$500. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
|
🇨🇳Inovance
inovance.com ↗
|
Shenzhen, CN | Drives & motion control | 500 units | 10–14 wks |
| sonacomstar.com ↗ | Gurugram, IN | EV driveline & motors | 500 units | 10–14 wks |
| broad-ocean.com ↗ | Zhongshan, CN | Electric motors | 500 units | 10–14 wks |
| nidec.com ↗ | Singapore | Motors, regional ops | 500 units | 10–14 wks |
| bosch.in ↗ | Bengaluru, IN | Automotive components | 500 units | 10–14 wks |