Bicycle Chain Checker Wear Indicator Stainless Steel MTB Bike Mountain Bike Chain Hook Bolt Measuring Tool Gauge Ruler

Specifications:
Product main material
Stainless steel
Product Color
Silver
Product size
125x42x2mm/4.92*1.65*0.08″
Product net weight
29g
Function
Measure the degree of wear of the chain (0.75 means wear, 1.0 means severe wear);
chain maintenance hook; measure length; measure thread diameter

Instructions for use:
1. Measure the degree of wear of the chain:
– Insert a hook without text into the chain link and observe the end of the hook with text.
– If it cannot be inserted at all, the chain is good;
– If it is inserted to the value of 0.75, it means that the chain is worn but can still ride for a period of time;
– If it is inserted into the value of 1.0, it means that the chain has been severely worn, and it is generally recommended to replace it immediately.

2. Chain maintenance hook:
– Use the two hooks on the back of the measuring ruler to secure the chain.
– It is more convenient for maintenance and removal of the chain.
– Avoid getting oil on your hands and the chain bouncing.

3. Length measurement:
The laser laser scale on the lower part of the measuring ruler can measure the length of 1-10cm/0.39-3.94″.

4. Thread diameter measurement:
Insert the screw to be measured into the hole and push it in the direction of the small hole;
When you can’t push it, you can know the thread diameter by observing the stop position number.

Packages Included:
1 X Bicycle Chain Measuring Gauge

Notes:
1. 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!
2. Please allow 1-3cm measuring deviation due to manual measurement.