Low Friction Ceramic Bearing Derailleur Pulley Wheel 11T 12T 13T 14T

DJC Bike pulley wheel ceramic bearing oilslick 11T 12T 13T 14T MTB road bike for derailleur mountain road bike guide wheel

Material: Aluminum 7075 Full CNC
Bearing: 689 Hybird ceramic bearing

Fit for most brand chain of 7 8 9 10 11 12 speed.

Hybird ceramic bearings. Low friction and almost zero resistance. Make your riding easier. Offer smooth riding experience and low noisy.

Body aluminum and full CNC process, then anodized surface treatment.

All them are ordinary tooth. Same to your original pulley wheels.

Size--weight(g)--diameter(mm)
11T--9g--41mm--most short legs
12T--12g-50mm--most middle legs
13T--11g--52mm--some middle legs
14T--15g--59mm--some long legs

Advice and principle to customers who want to modification:

1. top pulley called guide pulley, size should be smaller then lower pulley, as if too big then it will hit the cassette flywheel. the max size you can buy is 1 tooth bigger than you current use.

2. Big size means more likely to round, but only recommend increase 1 tooth base on your current pulley size for the top guide wheel, if too big, the top guide wheel will hit the cassette flywheel.

the lower tension wheel, you can add 1-2 tooth base on the size you current using. as big size means more like to round, it will help riding, make riding more smooth.

For example,
if your top guide wheel is 11T, the max you can change is 12T. 13T is too big for you.

the lower tension wheel you use is 11T, you can change it to 12T or 13T, any is fine.



Package Content:
if buy 1pcs, it come with 1pcs pulley in package. if buy 2pcs, then come with 2pcs pulley in package.

and with adapters for 4mm to 6mm, adapters for 5mm to 6mm .

(you have to use the adapter of 5mm to 6mm in 95% conditions).