The bicycle pulley, also called a jockey wheel, is a toothed circular component located on the rear derailleur. Its main function is to guide the chain through the different sprockets, maintaining the correct tension for smooth and efficient shifting. One of the simplest ways to upgrade your bicycle without replacing the pulley with a premium or latest-generation model is to replace the bearing with one that offers superior performance. This will improve the overall performance of the pulley itself.
ENDURANCE BEARINGS
Chrome Steel Bearings
High Strength and Performance
High Strength and Performance
INOX PRO BEARINGS
Ceramic Bearings
Hybrid stainless steel and ceramic balls
CR PRO BEARINGS
Full Ceramic Bearings
Minimal friction for maximum speed
RANGE ISB SPORT BEARINGS FOR PULLEY WHEEL
| wdt_ID | wdt_created_by | wdt_created_at | wdt_last_edited_by | wdt_last_edited_at | ISB SPORT Bearing | Inner (mm) | Outer (mm) | Width (mm) | Serie | Type of bearing / component |
|---|---|---|---|---|---|---|---|---|---|---|
| 912 | iGlobalia | 07/01/2026 11:49 AM | iGlobalia | 07/01/2026 11:49 AM | BRG 6x19x6 LC C+ ISBsport | 6 | 19 | 6 | Endurance ISB SPORT | Steel bearing |
| 913 | iGlobalia | 07/01/2026 11:49 AM | iGlobalia | 07/01/2026 11:49 AM | BRG 6x19x6 LC NY INOX PRO OIL ISBsport | 6 | 19 | 6 | PRO ISB SPORT | Ceramic bearing (hybrid stainless steel & ceramic balls) |
| 914 | iGlobalia | 07/01/2026 11:49 AM | iGlobalia | 07/01/2026 11:49 AM | BRG 6x19x6 LC NY CR PRO ISBsport | 6 | 19 | 6 | PRO ISB SPORT | Ceramic bearing (Full Ceramic) |