UCI Impact Test for ProX Carbon Wheels

This test is mainly for MTB wheels to make sure the rim's impacting strength is qualified. It will require 4 times impact at a different position from a required impacting height. Different wheels would have different impacting height requirements.

UCI Wheel Impact Test Standard

  • Test method: Vertical drop test (neutralization of the rebound of the anvil)
  • Wheel: Wheel tested without tire.
  • Energy level: 40 Joules
  • Impact striker geometry: Flat steel anvil, the impact surface is covered with a silicone rubber pad of 20mm thickness, pad requires to be undamaged.
  • Impact mass: Range of 6 - 10kg. Energy must always remain at 40 Joules at the hit with a +/- 5% tolerance. 
  • Hitting point: One hit at 90°from valve hole, adjusted to have the point between the spokes

Impact Test for Road wheel


Sample Rim

Model Inner/Outer Width Depth Weight Spoke Hole
URD28-450 21mm/28mm 45-50mm 480g 24H


Falling mass weight: 10kg


Test Results

Position No. Energy Height Hitting Points
#1 #2 #3 #4
1 40J 408mm


Apply 40J force, rim without any damage.


UCI Impact Test for road wheels



Good News! ProX Carbon has been granted UCI approval for our carbon road bike wheels C52DB-URD28-450. This wheels can be uses in UCI sanctioned road events.


Impact Test for MTB Wheel


Sample rim

Model Inner/Outer Width Depth Weight Spoke Hole
PAD938-EN 32mm/38mm 28mm 493g 28H


Falling mass weight: 17.5kg

Original height: 61cm
Target height for 120J impact energy: 131cm
 

Test Results

Position No. Energy Height Hitting Points
#1 #2 #3 #4
1 90J 525mm
2 100.3J 585mm
3 105.5J 615mm
4 110.6J 645mm
5 115.8J
675mm




6 120.1J
700mm




7 125.2J
730mm


×


A little crack on the rim after 125J testing.


UCI Impact Test for MTB wheels


ProX MTB Carbon All Mountain Rim Passed 120J UCI Impact Test!

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