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carbon bike wheels BRAKE DISTANCE TEST&RIDING FATIGUE TEST

  • 2018-10-26 16:13:01

CARBON WHELLS BRAKE DISTANCE TEST


This test is reflect how the brake track and brake pads perform together. For a good rim brake wheel, we not only demand it to be heat-resistant enough, also wish to have a good braking performace with less noise and shorter braking distance no matter in dry or wet conditions.


● Test condition: Air pressure 120psi, load 100kgf , brake lever
tforce 18kg, speed 25km/h, single cycle keep braking until stop,
test 25times.
●  Test Standard: Braking distance ≤12m.
●  Test Result: Test according to the test condition, average
braking distance 10m.



 

CARBON RIM NIPPLE HOLE STRENGTH TEST



This test is to make sure the spoke hole is strong enough to build a stiff wheel with required spoke tension and no cracks in a fierce racing.


● Test Condition: Apply 300kgf, speed 10.00mm∕min, test one
time.
●  Test Standard: Rims without any damage.
●  Test Result: Apply 305kgf, 310kgf, 300kgf, and 300kgf for four
spoke holes without any damage.



 

CARBON WHEELS RIDING FATIGUE TEST


This test has two important purposes, especially for hookless type rims. One is to make sure a certain high inflation will not burp out the tire. The other is to make sure the spoke hole drilling angle is correct, and no spoke or nipple cracks because of an incorrect angle.


● Test condition: First cycle air pressure 110psi, load 80kgf, speed
40km/h, keep riding 200km. Second cycle air pressure 110psi,
load 80kgf, speed 65km/h, keep riding 200km
●  Test Standard: Rims or Nipples or Spokes without any damage.
●  Test Result: Test according to the test condition, rim and nipples
and spokes without any damage.

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