-€60.00
GRX 820-825 OSPW Cyclingceramic pulley wheels system 14/19
Reduced price:
€229.00
Tax included
CyclingCeramic Pro OSPW Cage — GRX (Double)
- Use: Gravel (mud/sand) — solid-face pulleys to resist clogging
- Derailleur compatibility: Shimano GRX RX 11-speed & 12-speed (double only)
- Max cassette: 11–36 (largest sprocket 36T)
- Option: Black (solid CNC pulleys)
- Weight: 107 g
Why this cage for gravel?
Open pulleys clog fast in gravel. Solid-face aluminium pulleys keep particles out and maintain a smoother drivetrain. Hand-built ceramic bearings further cut friction for efficient racing and training.
Technical specifications
| Pulleys | 14T upper / 19T lower |
| Pulley material | CNC aluminium (made in France) |
| Cage material | UD carbon & aluminium |
| Bearings | Hand-built ceramic bearings |
| Derailleur compatibility | Shimano GRX RX 11- & 12-speed (double), 825 di2 compatible |
| Cassette compatibility | For double setups: 11–36T (11- & 12-speed) |
| Spring tension | 2 springs (two tension levels) |
| Speeds | 11- & 12-speed |
| Weight | 107 g |
Important: GRX double (2x) only. Max cassette 36T. Not compatible with MTB derailleurs, GRX 10-speed, or cassettes > 36T.
In the box
- Complete OSPW system for Shimano GRX RX 11- & 12-speed
- CyclingCeramic pulley oil 15 ml (dropper bottle)
- Installation guide
- Sticker sheet
Install, setup & care
- Plan +2 or +4 chain links versus stock.
- Adjust H/L and B-tension
- Keep Shimano-recommended clutch tension.
- After muddy rides: rinse with clean water, dry; avoid harsh solvents. Use oil supplied.
Comments (0)
Shipping
We use a dynamic pricing grid via Packlink. Prices are adjusted in real-time based on weight, delivery address, and chosen service.
Chronopost (Europe)
This is our most reliable carrier if you're looking for a quick delivery. We have daily collections from Chronopost, which is insuring the quickest shipping.
Mondial Relay
The relay point service is available for some EU countries at low rates. It's reliable and economical, you can select your pick up store after entering your delivery address.
USA Deliveries:
We have a flat rate of 34,90€-USD40 with priority mail express. This a reliable express shipping with an average of 7 days of transit.
Asia Deliveries:
We manage these deliveries through the Universal Postal Service (EMS). The shipping cost is €34.90 for most non-European countries. Delivery times are generally between 4 to 12 days.
Returns:
Returns are accepted and are at your expense (unless it is our mistake). Returns must be made within 14 days of receiving your package.
For more details, please visit our shipping page
