Impact Test

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LightCarbon Super Light Disc Brake Road Carbon Bike Frameset With Stem - Super Light weight! (870g/52cm) - Toray carbon fiber T700+T800+T1000 - Threaded T47 bottom bracket - Internal cable routing with specific stem - Max tire clearance 700C*32C - Flat mount disc brake, 140mm or 160mm - Front 12*100mm/Rear 12*142mm thru-axle - 2 years quality warranty more
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LightCarbon Gravel Frameset With Micro Suspension System And Stem - With Micro Suspension system - With specific stem for hidden cable routing - 31.6mm seat post (dropper post compatible) - UDH rear derailleur hanger - Max tire clearance 700C*47C or 650B*1.95'' - Flat mount disc 140mm or 160mm - Front 12*100mm/Rear 12*142mm thru-axle more
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LightCarbon Gravel Frameset With Micro Suspension System And Integrated Handlebar - With Micro Suspension system - 31.6mm seat post (dropper post compatible) - UDH rear derailleur hanger - Max tire clearance 700C*47C or 650B*1.95'' - Flat mount disc 140mm or 160mm - Full hidden cable routing - Front 12*100mm/Rear 12*142mm thru-axle more
LightCarbon Ultra Light And Stiff Rim Brake Full Carbon Spoke Road Wheelset - R65 hubs 54T Ratchet system, ceramic bearings - Full carbon spokes, super light, stiff and aero - 25mm and 28mm width carbon rims optional - Tubeless ready, fit 700*25C-45C tire - 2 years quality warranty more

Impact Test

Impact Test For LightCarbon Rims

Carbon wheel impact testing is conducted to evaluate the ability of carbon wheels to withstand impacts and ensure that they are safe and durable for use in cycling.

One common type of impact test for carbon wheels is the drop test. This involves dropping a weight onto the wheel from a specified height to simulate a real-world impact. The height and weight of the drop can vary depending on the specific standards being used.

The results of carbon wheel impact testing can help manufacturers identify potential weaknesses in their designs and make necessary improvements to enhance their strength and durability. It can also help ensure that carbon wheels meet industry standards for safety and durability.

Overall, carbon wheel impact testing is an important part of evaluating the safety and performance of carbon wheels and ensuring that they are safe and durable for use in cycling.

Below are two example cases of a impact test on LightCarbon road carbon rim RD28-44C and MTB carbon rim UAD935GP-XC:

Xiamen LightCarbon Composite Technology Co., Ltd.

Road Carbon Rim Impact Test Report

Rim Model：

RD28-44C

Test Item：

Impact Test

Test Date：

2022/9/5

Weight：

430g

Striker Weight：

10kg

Quantity：

1PCS

Striker Height:

400mm

Hole：

24H

Test Condition：

1.Vertical drop (neutralization of the rebound of the anvil).
2.Tested wheel without tire.
3.Energy level: 40 Joules.
4.Impact striker geometry: Flat steel anvil.
5.Impact mass: Range of 6 -10kg. Energy must always remain at 40 Joules hit with a +/- 5% tolerance.
6.Hitting point:One hit at 90°from valve hole, adjusted to have the point between the spokes.

Test Standard：

There should be no crack after 40J impact testing.

Test Result：

original radial profile

after impact

deformed

0.13mm

0.15mm

0.02mm

0.15mm

0.19mm

0.04mm

After 40J impacting,radial deformation≤1mm,lateral deformation≤1mm

Photo Of Test:

Final Judgment:

Qulified (Pass)

Xiamen LightCarbon Composite Technology Co., Ltd.

MTB Carbon Rim Impact Test Report

Rim Model：

UAD935GP-XC

Test Item：

Impact Test

Test Date：

2022/9/5

Weight：

320g

Striker Weight：

22.5KG

Quantity：

1PCS

Stack number：

D1L21

Hole：

28H

Test Condition：

1.Striker weight: 22.5kg;
2.Striker shape: cylindrical, flat bottom;
3.No tire test;
4.After the wheel set is fixed, raise the striker to 48J(height 217mm), release the striker, and make it fall freely to the outer circle of the wheel rim, and observe whether the wheel rim cracks or breaks. If there is no crack or fracture, increase the height successively and continue to test until the crack or fracture appears.

Test Standard：

There should be no crack after 60J impact testing.

Test Result：

NO.

Joule (height)

After Impact

Comment

48J（217mm）

Normal

60J（272mm）

Normal

70J（317mm）