Inflation Test

English

+86-592-6380131

info@lightcarbon.com

Wendy | LightCarbon

what are you looking for?

Carbon Rims/Wheels Test

home |Technology |Carbon Rims/Wheels Test |

Inflation Test

categories

new products

LightCarbon High-end DT240 Gravel Carbon Wheelset 700C Tubeless Ready - Cyclocross/Gravel carbon wheel. - DT Swiss 240 hubs, Ratchet EXP 36T, center lock. - 28/33/44mm depth carbon gravel rims optional. - High end Sapim CX-Ray spokes, straight pull. - Shimano 11/12s or Sram 12s XDR cassette body. - 2 years quality warranty. more
LightCarbon Super Light C67DB Undulating Rim Depth Carbon Spoke Road Wheels - C67DB ceramic bearings hubs, straight pull, Rachet 36T - LC CS1 carbon spokes, 2:1 ratio, light and stiff - 28mm wide undulating carbon rim, tubeless ready - Shimano 11/12s or Sram 12s XDR cassette body - 2 years quality warranty more
LightCarbon E-Bike Frame Bafang Full Suspension Carbon Ebike Frame - VPP Suspension System e-MTB carbon frame - Fit Bafang M510/M600//M560 mid drive engine - Fit OEM Lithium battery 720wh - 12*148mm boost thru-axle - 210*55mm rear shock size - Max 150mm rear travel more
LightCarbon Super Light 700C 5-Spoke Carbon Wheel For Road-Gravel-TT - Super Light 5-spoke carbon wheelset, 1300g/pair only - For Road/TT/Gravel Bike - 28mm outer width, 45mm depth - Clincher version, tubeless ready - Shimano 11/12s and SRAM 12s XDR optional more
Full Carbon Seat Post Zero/15mm Offset - Toray T700 carbon fiber - OD 27.2 x 381mm length (15mm offset) - OD 31.6 x 400mm length (0mm offset) - Compatible for both round (7X7mm) / Oval (7X9mm) saddle rails more
700C Undulating Gravel Carbon Rims Tubeless Ready Rims Off-road - Undulating rim depth (35-40mm). - 30mm width gravel carbon rims. - Disc brake, 24 spoke holes. - Clincher (tubeless ready). - Bead hook and hookless optional. - 2 years quality warranty. more
Super Aero Undulating Rim Depth 700C Disc Brake 28mm Width Carbon Clincher Rim - Undulating rim depth (30-65mm), several height. - 28mm Width carbon clincher rims (tubeless ready). - Disc brake, 21H or 24H optional. - Wide U shape design, better aerodynamics and stiffness. - 2 years quality warranty. more

Inflation Test

Inflation Test for LightCarbon Rims

Carbon rim inflation test is a procedure to determine the maximum safe tire pressure that can be used with a carbon fiber wheel rim. This test is important because carbon fiber rims have different properties than traditional aluminum rims and may not be able to withstand the same amount of pressure. In this test, two parameters, flatness and roundness, were mainly adopted to reflect the qualification.

Flatness refers to whether the rim is warped or bent and is no longer perfectly flat. This can cause the wheel to wobble and create vibrations when driving, which can be felt in the steering wheel or throughout the vehicle. Roundness refers to whether the rim is perfectly round or not. If the rim is not perfectly round, it can also cause the wheel to wobble and create vibrations when driving.

Below is an example case of inflation tension on LightCarbon mtb road disc brake road rim RD25-38C:

Xiamen LightCarbon Composite Technology Co., Ltd.

Inflation Test Report

Rim Model：

RD25-38C

Test Item：

Inflation Tension

Test Date：

2022/6/19

Weight：

390g

Weave：

Quantity：

1PCS

Max Air Pressure：

140 psi

Hole：

24H

Test Condition:

1. Inflate to 140 psi air pressure on valve hole to test.
2. Place the rim on the test turntable and align the dial indicator with the middle of the brake edge.
3. Turn the rim once and record the maximum and minimum values of the dial indicator. The difference between the two is the flatness of the brake edge.

Testing Standard：

1. No acute noise, buldge or deformation after Inflating to 140 psi.
2. Brake edge flatness ≤0.3mm. Rim roundness ≤0.3mm.

Test Result：

1. No acute noise, buldge or deformation.
2. Flatness 0.15mm. Roundess 0.2mm.

Photo of testing: