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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. Lounge
    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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