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Shonen · 02.22.2011, 04:12 AM

The heatsink rib looking things are just added to the bits that connect the front and rear lol. The extra space is mainly so that you can attach a 40mm cooling fan to the top and it would still have enough room for air to go around the motor. I think it would've been better from a cooling standpoint to have the sides closed and have a larger bottom opening to better shroud the motor and force air around it, but I suppose it needs to work without a fan too.

If I was starting from scratch I would've done exactly the same thing, but I had this 36mm mount laying around from an eBay bulk auction. 42mm opens possibilities for more powerful motors. (: The best part of running an outrunner is you don't have to get some super long motor that comes really close to the rear suspension arms.

	(#36)
Shonen RC-Monster Carbon Fiber Offline Posts: 130 Join Date: Feb 2010 Location: Hilo, Hawaii	02.22.2011, 04:12 AM The heatsink rib looking things are just added to the bits that connect the front and rear lol. The extra space is mainly so that you can attach a 40mm cooling fan to the top and it would still have enough room for air to go around the motor. I think it would've been better from a cooling standpoint to have the sides closed and have a larger bottom opening to better shroud the motor and force air around it, but I suppose it needs to work without a fan too. If I was starting from scratch I would've done exactly the same thing, but I had this 36mm mount laying around from an eBay bulk auction. 42mm opens possibilities for more powerful motors. (: The best part of running an outrunner is you don't have to get some super long motor that comes really close to the rear suspension arms.