Carbon Rims/Wheels Test
categories
new products
Ultra Light And Aero Carbon Road Integrated Handlebar - Ultra Light and Stiff, only 300g/pc! - Made of Toray T1000+T800+M40JB carbon fiber - Aero shape design with 8mm lift. - Ultra light Titanium screws are used for stem - 3D latex mandrel + one-piece molding - For full internal cable routing - Designed with 3 hole for cycling computer holder - 2 years’warranty more
LightCarbon Gravel Frameset Micro Suspension Pivot Design With Stem - Full internal cable routing with stem - Micro Suspension Pivot design - Design with downtube storage - Threaded T47 (85.5mm) bottom bracket - UDH rear derailleur hanger - Max tire clearance 700*50C or 650B*2.1'' or 29er*1.95'' - Disc brake (flat mount), for 140mm/160mm rotor - 2 years' quality warranty more
LightCarbon Gravel Frameset Micro Suspension Pivot Design With Integrated Handlebar - Full hidden cable routing with integrated handlebar - Micro Suspension Pivot design - Downtube storage design - Threaded T47 (85.5mm) bottom bracket - UDH rear derailleur hanger - Max tire clearance 700*50C or 650B*2.1'' or 29er*1.95'' - Flat mount disc brake, 140mm or 160mm - 2 years' quality warranty more
LightCarbon Full Suspension Enduro Mountain Bike Carbon Frame VPP Suspension System - VPP Suspension system enduro frame - Max 170mm rear travel - Rear shock size: 210*55mm (standard mount) - Bottom bracket: BSA-73 - M12*148mm boost thru-axle - UDH rear hanger more
LightCarbon Gravel Rims Widened 32mm Inner Width 700C Carbon Rims For Gravel Bike - Super wide (32mm inner width) carbon rims. - Optional depth 40/45/50mm. - Reinforced structure for gravel bike use. - Disc brake (Clincher/Tubeless ready). - Tire Size Recommended: 700*44C-70C. - 2 years quality warranty. more
LightCarbon Ultra Light And Stiff Road Disc Brake Carbon Wheels With Carbon Spokes - C68DB ceramic bearings hubs, 36T Ratchet, straight pull - Full carbon spokes, aero, light and stiff - 28mm outer width (21mm inner width) carbon rims - Shimano 11/12s HG or Sram 12s XDR cassette body - 2 years quality warranty more
LightCarbon 700C Disc Brake Gravel Carbon Fork Aero Gravel Bike Fork - Made of Toray T700 carbon fiber - M12*100mm thru-axle dropout - Designed with fender mount - With side 3-rivet and No rivet optional - Fit 700*50C or 650B*1.95'' max tire - 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：
UD
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:
Final Judgment:
Qulified (Pass)
Inflating Test Video
Flatness And Roundness Test Video
previous :
Vertical Rigidity Testnext :
Spoke Tension Test
email : info@lightcarbon.com
add : 4/F, NO.3 Bldg, Longtou Industrial Zone, NO.9 Xingmei Road, Xiamen, 361022, China
follow us :
newsletter
copyright © 2025 LightCarbon Composite Technology Co.,Ltd.all rights reserved.
the professional team to service !
