Eagle Racing R31 Rear Pulley Mount

Another R31 option part added to the Eagle Racing product line-up. This time is rear pulley holder mount for the Street Jam OTA-R31 and R31 based chassis. Available in blue or gold anodized aluminum colors, these parts are available now for the R31 chassis. This option part is a good replacement for the stock plastic resin parts.

Made of high quality aluminum alloy, this option parts will added durability and structural integrity to the moving pulley parts. The new rear pulley mount increases the rigidity of the pulley holder and allows the moving parts to work more effectively. Eagle boasts that it will reduce the friction losses and result in smooth acceleration. The material is also light weight for best chassis performance. The new colours also add more style and color to your chassis. This option part is available now, get them before they run out.

SP OTA-R31 Lightweight Rear Pulley Mount

  • Made of high quality aluminum alloy
  • Lightweight and durable
  • Blue or Gold anodized to match your style
  • Reduce friction loss for better performance
  • Greater stiffness and rigidity
  • Hex hardware for fastening
  • Compatible with R31 based chassis
  • Approximate MSRP: ¥1680JPY
    Source: Eagle Racing

    12 Comments on “Eagle Racing R31 Rear Pulley Mount”

      1. haha was going to post those pieces later 🙂
        those parts are not necessary, they are stiffeners for front and the rear (two different sets).  completely up to you if you want to make front or rear sections stiffer or not

          1. No problem, I am sure many people have found it already 🙂  Just a warning those, eagle racing warns the stiffener pieces only work with Eagle R31 products, these are not meant for fastening to Street Jam FRP bulkheads.  They may not fit.
            It sounds like your car is already hopped up with aluminum and CF, so if that is the case these are probably not necessary.  It really depends on how you like your chassis to behave and how you tune it.  Chassis stiffness is good but flex is also not a bad thing.

            1. Well, I said that I have the graphite chassis but it arrives only Monday(cross fingers 🙂 ). I’m waiting for it for 1 month..
              The only aluminium I have for it is the lower bulkheads and the motor mount. Besides the front and rear pulley holders, I think I’m only getting the steering assembly

            2. The front stiffeners add some much needed rigidity to the front pulley assembly. But, you have to take off the spur gear to remove the right side stiffener, to remove the front pulley bulkhead… The rears, didn’t see the need to install mine.

      1. haha was going to post those pieces later 🙂
        those parts are not necessary, they are stiffeners for front and the rear (two different sets).  completely up to you if you want to make front or rear sections stiffer or not

          1. No problem, I am sure many people have found it already :)  Just a warning those, eagle racing warns the stiffener pieces only work with Eagle R31 products, these are not meant for fastening to Street Jam FRP bulkheads.  They may not fit.
            It sounds like your car is already hopped up with aluminum and CF, so if that is the case these are probably not necessary.  It really depends on how you like your chassis to behave and how you tune it.  Chassis stiffness is good but flex is also not a bad thing.

            1. Well, I said that I have the graphite chassis but it arrives only Monday(cross fingers 🙂 ). I’m waiting for it for 1 month..
              The only aluminium I have for it is the lower bulkheads and the motor mount. Besides the front and rear pulley holders, I think I’m only getting the steering assembly

            2. The front stiffeners add some much needed rigidity to the front pulley assembly. But, you have to take off the spur gear to remove the right side stiffener, to remove the front pulley bulkhead… The rears, didn’t see the need to install mine.

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