Carbon Rims/Wheels Test

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Braking Test

Braking Test for LightCarbon Rims


The goal of the braking test is to evaluate the braking performance and heat tolerance of the rims, which can be affected by factors such as rim shape, brake pad material, and weather conditions. The test results are then used to determine the safety and reliability of the carbon rims for use on road bikes. In this test, two parameters, braking temperature and braking distance, were mainly adopted to reflect the qualification.


Performing a braking temperature test on a carbon rim involves subjecting the rim to a series of controlled braking events to measure the temperature rise of the rim. The purpose of the test is to determine the safe operating temperature range for the rim and to ensure that the braking system is functioning properly.


Performing a braking distance test on a carbon rim involves measuring the distance it takes for the bike to come to a complete stop after applying the brakes. The purpose of the test is to determine the effectiveness of the braking system and to ensure that the rim is capable of safely stopping the bike in various conditions.


Below is an example case of braking test on LightCarbon road rim RV25-45C :

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Xiamen LightCarbon Composite Technology Co., Ltd.
Braking Temperature Test Report
Rim Model: RV25-45C Test Item: Braking Temperature
Test Date: 2022/8/10 Weight: 480g
Weave: UD Quantity: 1PCS
Load: 100kgf Hole: 20H
Test Condition: 1.Tire pressure: 120psi, tire type (700*25) clincher tire.
2.Wheel load 100kgf, brake force 15kg.
3.Braking speed is 12.5km/h.
4.Braking for 80 seconds, release for 10 seconds.
Test Standard: 1. Within 2 times of braking, the rim is not allowed to burn and blister;
2. The highest heat-resistant temperature shall be greater than 190℃
Test Result: Without any visual damage and deformation ≤0.3mm
Photo Of Test: Carbon Rim Braking Temperature Test
Final Judgment: Qulified (Pass)


LightCarbon LOGO
Xiamen LightCarbon Composite Technology Co., Ltd.
Braking Distance Test Report
Rim Model: RV25-45C Test Item: Braking Distance
Test Date: 2022/8/10 Weight: 480g
Weave: UD Quantity: 1PCS
Load: 100kgf Hole: 20H
Test Condition: 1.Tire pressure: 120psi, tire type (700*25) clincher tire.
2.Wheel load 100kgf, brake force 18kg.
3.Braking speed is 25km/h.
4.Single cycle keep braking until stop, test 25times.
Test Standard: Braking distance ≤12m.
Test Result: Average braking distance 10m.
Photo Of Test: Carbon Rim Braking Distance Test
Final Judgment: Qulified (Pass)




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