@Goose246 asked this question in a different thread awhile back and I could only vaguely answer the question. I tried some google-fu to get more info but really couldnt find much in the way of an informative answer. To that end I reached out to Holmes Hobbies and asked them that question. Here is their reply for anyone interested.
"Good question! Most of the motors you've likely experienced are 3 slot armatures. This of course, means the commutator has three segments. The current being applied makes the motor spin to the next segment. In the case of 3 slots, it jumps 120°, or 1/3 of a full revolution. It takes a decent amount of current and motion to turn that far. Now imagine how that's improved by having a 5 slot motor! Now it takes less current to jump to the next segment and/because the motor doesn't need to spin so far to do it. 72° or 1/5 of a revolution means startup speeds are lower and low speed modulation is much easier.
A good rule of thumb for extrapolating how much load/how fast a 5 slot motor( all Crawlmaster brushed motors are 5 slot) will be (in comparison to a like-sized and constructed 3 slot) is to double the turn count. So, the Crawlmaster Sport 12T is going to behave like a 24T 550 at WOT. Or, a little slower top speed and a little less load than the 12T Titan.
If we're looking at trucks like the Slash and want a more apples to apples comparison, our Trailmaster Sport 550 12T is comparable but likely a slightly slower top speed/lower Kv due to stronger magnetics."
"Good question! Most of the motors you've likely experienced are 3 slot armatures. This of course, means the commutator has three segments. The current being applied makes the motor spin to the next segment. In the case of 3 slots, it jumps 120°, or 1/3 of a full revolution. It takes a decent amount of current and motion to turn that far. Now imagine how that's improved by having a 5 slot motor! Now it takes less current to jump to the next segment and/because the motor doesn't need to spin so far to do it. 72° or 1/5 of a revolution means startup speeds are lower and low speed modulation is much easier.
A good rule of thumb for extrapolating how much load/how fast a 5 slot motor( all Crawlmaster brushed motors are 5 slot) will be (in comparison to a like-sized and constructed 3 slot) is to double the turn count. So, the Crawlmaster Sport 12T is going to behave like a 24T 550 at WOT. Or, a little slower top speed and a little less load than the 12T Titan.
If we're looking at trucks like the Slash and want a more apples to apples comparison, our Trailmaster Sport 550 12T is comparable but likely a slightly slower top speed/lower Kv due to stronger magnetics."
