VEXRONA 18T Hollow Ceramic Bearing Rear Derailleur Pulley

[Product Overview]

Upgrade your cycling performance with the VEXRONA 18T Eccentric Hollow Guide Pulley. Designed for professional road bike enthusiasts, this pulley wheel combines ultra-lightweight materials with high-precision ceramic bearings to ensure the smoothest shifting experience and maximum power transfer.

---

[Key Features]

• 18T Oversized Design: The larger 18T tooth count reduces the chain's bending angle, significantly lowering friction and improving drivetrain efficiency.

• Eccentric Hollow Structure: Unique eccentric design optimizes the gap between the pulley and the cassette for faster, more precise shifting. The hollow CNC aluminum body keeps the weight at a mere 28g.

• Premium Ceramic Bearing: Built-in high-quality ceramic bearings offer lower rolling resistance, superior durability, and better resistance to dust and water compared to standard bearings.

• 7075 Aluminum Alloy: CNC machined from aerospace-grade aluminum for exceptional strength and wear resistance.

---

[Technical Specifications]

Specification	Detail
Brand	VEXRONA
Tooth Count	18T
Material	7075 Aluminum Alloy + Ceramic Bearing
Weight	Approx. 28g
Diameter	73mm
Mounting Hole	5mm
Colors	Available in multiple anodized finishes

---

[Compatibility]

Universal fit for SHIMANO and other major road bike derailleur systems:

• SHIMANO: 9 / 10 / 11-Speed systems (e.g., R8000, R7000, 6800, etc.)

• L-TWOO: ERX / ER9 / R9 / R7 series

• Maijin: QED series

---

[⚠️ IMPORTANT NOTICE - Read Before Purchase]

To ensure a perfect fit and avoid installation issues, please note:

1. Stopper Limitation: This product cannot be installed on certain derailleur models equipped with internal stoppers/guards on the cage.

2. Check Your Cage: Please carefully confirm your rear derailleur cage clearance and structure before purchasing.

3. Professional Install: If you are unsure about compatibility, we recommend consulting a professional bike mechanic or contacting our customer service with photos of your derailleur.

---

[Package Includes]

• 1 x VEXRONA 18T Ceramic Bearing Pulley Wheel

• 1 x 10mm Mounting Screw

• 1 x 16mm Mounting Screw

• 2 x Precision Washers