18T Hollow Pulley Wheel Rear Derailleur 9/10/11/12 Speeds Ceramic Bearing Dual-color Oxidation for R8000/7000 Bicycle Parts

Updated 2 days ago by Stefan W
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Reviews & Ratings

jonathanf2 of Chinertown in „Road Bike Frames, Wheels & Components" 12 days ago
2026-01-29
Bought on

I'm not a big fan of OSPWs, but this 18t offset pulley wheel actually works. It allows bigger cassette sizes while maintaining solid RD shifting. On my eR9 groupset, I'm running a 2x 50-34t chainring + 10-36t XDR 12 speed with this setup and no additional modifications were needed except for swapping out the lower jockey wheel.

View original forum comment in Chinertown-Forum:
Road Bike Frames, Wheels & Components → LTWOO ER9 & ERX - Electroni...

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Where to Buy

aliexpress.us
🇩🇪
€36.19
Rating there:
5.0 (5 reviews)
Last checked:
10 days
ago
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