DJC Ceramic Bearing Pulley Wheel 10T 11T 12T 13T 14T Narrow Wide & Standard Tooth for Shimano SRAM 7-12 Speed MTB Road Bike
Even Teeth (10T / 12T / 14T)
π Narrow Wide Tooth (Anti-drop design)
π Better chain retention
Odd Teeth (11T / 13T)
π Standard Tooth
π Same as original pulley, smoother and universal
Closed Body (Even Teeth)
→ Stronger structure
→ Better chain control
Hollow Design (Odd Teeth)
→ Lightweight
→ Classic pulley style
7075 Aluminum Full CNC Machined
High strength + precision
689 Hybrid Ceramic Bearing
Low friction, smooth and quiet
Dual Tooth Design (Unique)
Narrow Wide + Standard options
7–12 Speed Compatible
Shimano & SRAM derailleur
|
Size |
Weight |
Diameter |
Recommended Cage |
|
10T |
9g |
42mm |
Most short cage |
|
11T |
5g |
42mm |
Most short cage |
|
12T |
12g |
50mm |
Most medium cage |
|
13T |
7g |
51mm |
Some medium cage |
|
14T |
17g |
58mm |
Some long cage |
π
Note: Larger pulley wheels improve chain wrap and smoother riding, but please check derailleur cage clearance before upgrade.
Upper pulley (guide wheel)
π Same size or +1T only
π Too large may hit cassette
Lower pulley (tension pulley)
π Can increase +1T or +2T
π Larger size = smoother ride
1 × Pulley Wheel (or 2 pcs option)
4mm → 6mm Adapter
5mm → 6mm Adapter
5mm Bolt
π 95% bikes use 5mm adapter



















