Intermittant grinding cassette/freehub area

step83
step83 Posts: 4,170
edited June 2015 in MTB workshop & tech
Noticed the other week but blamed a dirty great puddle. Same this week in the dry. I started off fine rode about two miles then suddenly theres a lot of clunking feedback through the pedal, backpedalling is fine and if i spin in a lower gear when the bikes at speed again no issues its just when I put any power down. Then randomly after some freewheeling down a singletrack it runs fine again. Then later in the ride it came back. Doesnt seem to matter which gear im in either, chain and cassette are both new (broke the others) lubed up and free from anything obvious like grit etc. Any ideas what could cause this?
Titanium Px Spitfire
Easty commuter
Tripster AT

Comments

  • cooldad
    cooldad Posts: 32,599
    Freehub bearings, wheel bearings, small animal clinging to the wheel?
    I don't do smileys.

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  • The Rookie
    The Rookie Posts: 27,812
    Pawls in the freehub.... Description needs some refining!
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.

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