I have problem with my drive train. Irritating rubbing gritting sound when pedaling. Sound amplified under exertion. Thorough cleaning and meticuluous lubing didn't solve the problem. Hmmmm...Sound seems to be coming from the LX RD and I suspected that the chain and the pulley were the culprits. Shifting was also not smooth with occasional chain skip and there was a slight feeling of drag when pedaling.
Then I saw an ad in the BicycleBuySell about KCNC alloy pulley. Interesting! Could be the solution to my problem. I quickly grabbed a pair from KSH TTDI which was offering at RM18.00 a piece. The one I bought was the 11T normal sealed bearing edition. KCNC also offer pulleys with ceramic bearing at a higher price. More details at KCNC website
KCNC jockey wheel features;
- 7075 anodized alloy
- Compatible with Shimano, Campagnolo and Sram
- Colour : Black , Red , Blue , Silver,Green
- Patented Design
- Teeth: 10T, 11T, 12T, 13T
- Ceramic Bearing available / 9g
Installation was quite simple. You dont even have to remove the RD. Just do "on frame" installation. Replace one pulley at a time. Snappy.
Both jockey pulley and tension pulley for my LX RD replaced. Immediate test ride showed very distinguished performance. Pedaling felt lighter, smoother shifting and no more gritting noise. Yessss...But...too premature to jump in joy.