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  1. Engine
    How durable are the stock crank shafts in these 450rs? I have a 2014 model. With a ported head and a stage 3 hotcam. My buddy keeps preaching that I need a crank because they like to separate. I still have the stock rev limiter. Afraid to do the green wire mod until I know more. So how much...
  2. General TRX Discussions
    My crank bearings went, motor locked. Now I’m opening it up and kinda need some advice as to what put into it. Should I get a hotrods stroker? Should I stay with the oem crank? Bigger cylinder and piston? Stage 2 cams? Anything is appreciated, I just want to make power and reliability.
  3. TRX450R.org Project Quads
    I would like to know if a crf450r crank and piston would fit in my 2005 Trx450r. I can’t find a trx450 crankshaft for sale but I found a crf450 one and wanted to know if it’ll fit inside the engine. Please get back to me. Thank you.
  4. Engine
    Hi, I’m new here and I need help. I have an 05 Trx450r that recently locked up on me and I would just like to know if a crf450r crank and piston would fit inside like trx450 engine. Please get back to me. Thank you all.
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