Item Name: Mi.Xim 12T MTB Road Bike Rear Derailleur Guide Bearing Jockey Wheel (Red). Smart TV Box Android Quad Core HDMI 1080P Wifi Streaming Media Player UK
Mi.Xim 12T 14T Mountain Road Bike Rear Derailleur Pulley Guide Roller Bicycle Aluminum Alloy Bearing Jockey Wheel Cycling Parts
Feature:
1. Aluminum alloy high-strength shell: It is made of high-strength aluminum alloy and CNC machined to improve durable strength
2. Deepen the tooth marks: It can effectively reduce the chain drop, the speed change is clearer, and the winding is more stable
3. Positive and negative tooth design: The positive and negative tooth shape can significantly suppress the lateral swing of the chain and greatly reduce the probability of chain drop
4. Leakage design: It can effectively discharge the sediment and other debris contaminated on the chain during riding.
Specification:
Main body material: aluminum alloy
Product color: black, red, color
Type: 12T/14T
Product size: about 50x50x8mm/1.97x1.97x0.31in, 59x59x8mm/2.32x2.32x0.31in
Product net weight: about 11.45g/14.96g
Diameter of middle hole: 6mm/0.24in
The inner diameter of the two reducing sleeves: one with an inner diameter of 5mm/0.2in, and the other with an inner diameter of 4mm/0.16in (generally, one reducer sleeve is installed in the guide wheel by default)
Guide wheel selection principle:
1. It is preferred to use the same size as the original guide wheel if there is no same, you can choose a smaller than the original guide wheel, but you cannot choose a larger one
2. There is no distinction between the guide wheel and the tension wheel, but the size of the original guide wheel and the tension wheel of some rear derailleurs are different, and they can also be replaced with the same size, and the length of the chain needs to be readjusted
3. At present, we recommend installing the upper and lower 12 positive and negative tooth guide wheels for mountain bikes, and install them directly regardless of the upper and lower and positive and negative
4. For road bikes, we recommend refitting a 12T or larger guide wheel, but it must be supported by a rear derailleur
5. The positive and negative gear guide wheels should be installed in pairs as much as possible, and the installation effect will be better.
Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-2cm measuring deviation due to manual measurement.
