what is the difference
 

what is the difference between this and this when you chose 7XL. I am confused both say they are 7Xls but one is out of sock and the other is not also on is black and has a heatsink and the other is a smooth purple can(and what confuses me the most is the price difference is only 5 bucks). Can you explain what is going on here. Thanks:032:

You basically just answered you own question...One has a built in heatsink and one doesn't...The black one has a screwed on endbell instead of a press on one like the purple one. There basically the same thing....Get the C version. The standard has the pressed on endbell that can possible pop off and ruin the motor (thats why the RC-M heatsink has a bar across the back).

squee could you throw some input on this thread thanks