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Crank arm advice please

I recently bought a mongoose tryx competition mtb (best I could get during the lockdown) and have stripped the pedal thread on the left crank arm.
Does anyone know where I can get a replacement???
I've searched every bike shop I can find online and even contacted mongoose and prowheel in China but nothing!

Anyone know where I can find a left arm 175mm prowheel crank arm?


  • JBAJBA Posts: 2,852
    Did you try to screw the pedal in the wrong way? Left crank is a left-handed thread.

    I'd forget it and fit a decent chainset and BB. Shimano HT II BB and Deore chainset are good and relatively cheap.
    “Life has been unfaithful
    And it all promised so so much”

    Giant Trance 2 27.5 2016 ¦ Sonder Broken Road 2021¦ Giant Revolt Advanced 2 2019 ¦ Giant Toughtroad SLR 1 2019 ¦ Giant Anthem 3 2015 ¦ Specialized Myka Comp FSR 2009
  • I can only assume in hast I must have cross threaded it, went for ride tried to fix it in the rain and it just got worse.
    Yes it looks like I'll have to replace the lot at the moment
  • Be not concerned! The Shimano Hollowtech II and Deore stuff is excellent!
  • You might have to buy the whole Prowheel Charm crank set,Aliexpress do them also some on Ebay.
    Or replace with Sram or Shimano.
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