Fulcrum Zeros

Brian1
Brian1 Posts: 595
edited August 2015 in Road general
Been riding fulcrum racing 1's and have just bought a pair of zero's. Took them out for a first ride today and on freewheel they are virtually silent whereas the 1's had a really loud clic while freewheeling. Are the Zero's quiet because the have ceramic bearings. Sorry if this is a really stupid question but am iterested to know!

Comments

  • norvernrob
    norvernrob Posts: 1,448
    Been riding fulcrum racing 1's and have just bought a pair of zero's. Took them out for a first ride today and on freewheel they are virtually silent whereas the 1's had a really loud clic while freewheeling. Are the Zero's quiet because the have ceramic bearings. Sorry if this is a really stupid question but am iterested to know!

    They're quiet hubs, mine were virtually silent for some time then gained a bit of sound.
  • Brian1
    Brian1 Posts: 595
    Thanks Rob
  • mfin
    mfin Posts: 6,729
    The noise comes from the pawls clicking back and forth, so it's nothing to do with the bearings at all, just to do with the amount of grease around the pawls really. (...and if any bearing was audibly noisy when riding it would be completely and utterly shot). The freehub body itself, complete with it's bearing and pawls is available as one single purchasable part that is identical on the 1's and Zeros. If you want your 1s to be quiet as well then remove the freehub body and load up the pawls and the toothed track they run in with grease, takes about 2 minutes and requires very little skill to do it.
  • The noise comes from the pawls clicking back and forth, so it's nothing to do with the bearings at all, just to do with the amount of grease around the pawls really. (...and if any bearing was audibly noisy when riding it would be completely and utterly shot). The freehub body itself, complete with it's bearing and pawls is available as one single purchasable part that is identical on the 1's and Zeros. If you want your 1s to be quiet as well then remove the freehub body and load up the pawls and the toothed track they run in with grease, takes about 2 minutes and requires very little skill to do it.

    What he said. However DO NOT get grease near the bearings on the Zeros. Their ceramic bearings use a very fine mineral oil and they only need a couple of drops to run. I use a good quality sewing machine oil on my Campagnolo cermaics.