Specifics on how RR can be a rock crawler instead of racer

[geauxktm,]

I understand that the RR is not intended to be a crawler but that is what I need it to be or I'm just going to sell it. The power and inability to not go slow is not applicable for what I drive on. Is there anyone who makes sets of Gears to lower the gearing? I don't really care about speed so could I just throw a brushed Motor Inn and that get me closer to what I'm wanting or will it still be here too high? I couldn't tell much of a difference with the gear change from 12t to 10t. I've been really see potential in this truck if I I'm able to make it into what I am picturing. I would at least try some longer shocks to raise it in the front and with the decrease in power and speed I can pick the front and gave less chance of breaking. I'm fine with a 12mph top speed and really hope i can get some input on specific gearing/ parts that will help me achieve what I'm going for because I can't stand how it hates going slow.


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[willyg1981]

The 1515 mmx sensored system Iv just fitted is pretty awesome , I get close to an hour per 2's battery 4000mah , it will quite happily cruise at walking speed with 12T , even sloth pace is very happy , has ample torque for crawling and 100 % drag break is almost solid on a 50'ish degree maybe even steeper I'll take a spirit level with me next time and check , the rig is 7.5lbs and the motor gets a slight warmth to it nothing to worry about at all it crawled up this rock piece of cake , unfortunately I reduced the drag brake to 40% for a bit of light bashing and didn't remember to take my field link with me to re set it for the crawling so I had to hook the wheels over the stone to get the pick ,but I love this thing now , at one point I'd tell my mrs "going out for a few hours of crawling "and I'd be back with in 20 minutes from something breaking and now she has to text and ask me to come home lol


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[CoolRunning]

I think the first thing is 2S. I feel for you blokes as on 2S my RR has taken so much abuse with the only issues being a couple of bearings that were a tiny bit gritty.

Next a sensored brushless system of the same dimensions as the fuze. From memory it's about a 61mm sized can. Put in the biggest ESC you can that still runs 2S; it'll make a difference crawling with high gearing though you'll want to keep and eye on motor temps still.

Then lock the centre and front diffs.

Now if you're not going near water, a big Hobbywing Xerun ESC will be great; get a 140-200 amp one for maximum cooling and one of their motors as they are well regarded but if you want to play with water grab the big Castle X ESCs.

I imagine it'll crawl pretty great at this point though it's not going to have brushed motor levels of super slow crawling potential like say a brushed Bomber with 2 speed and 5.8 tyres. But it'll go fast as well as do an solid job at crawling.

I personally spend far more time crawling and trailing than zooming around so my RR gets far less driving now but if mine crawled great with better foams and a sensored system it would be pretty impressive.

I've even pondered what it would take to shoehorn a Yeti or Bomber gearbox with 2 speed in mine. There's loads of room in the interior and that would make it crawl like a champ IMO and I would remove one weak link in the RR drivetrain. I find it extremely stable on slopes and very capable considering its huge pan.

[geauxktm,]

Originally Posted by willyg1981

The 1515 mmx sensored system Iv just fitted is pretty awesome , I get close to an hour per 2's battery 4000mah , it will quite happily cruise at walking speed with 12T , even sloth pace is very happy , has ample torque for crawling and 100 % drag break is almost solid on a 50'ish degree maybe even steeper I'll take a spirit level with me next time and check , the rig is 7.5lbs and the motor gets a slight warmth to it nothing to worry about at all it crawled up this rock piece of cake , unfortunately I reduced the drag brake to 40% for a bit of light bashing and didn't remember to take my field link with me to re set it for the crawling so I had to hook the wheels over the stone to get the pick ,but I love this thing now , at one point I'd tell my mrs "going out for a few hours of crawling "and I'd be back with in 20 minutes from something breaking and now she has to text and ask me to come home lol


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Yes I've seen it's crawling potential and this is why I'm wanting to try this. I have the big mamba max X and holmes puller pro 3500kv and guess I was wondering if that being a crawler motor would allow it to creep. If I do put that combo in , shoot just realized it's not the right shaft size, I would plan to run it with the throttle percentage down especially if the front is locked. Those 1515 being $99 may be a better option. So I guess there isn't any way to hear down other than the 10t I've already put in there.

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[willyg1981]

You can get a 5 mm sleeve if it's shaft is too narrow !


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[geauxktm,]

Originally Posted by CoolRunning

I think the first thing is 2S. I feel for you blokes as on 2S my RR has taken so much abuse with the only issues being a couple of bearings that were a tiny bit gritty.

Next a sensored brushless system of the same dimensions as the fuze. From memory it's about a 61mm sized can. Put in the biggest ESC you can that still runs 2S; it'll make a difference crawling with high gearing though you'll want to keep and eye on motor temps still.

Then lock the centre and front diffs.

Now if you're not going near water, a big Hobbywing Xerun ESC will be great; get a 140-200 amp one for maximum cooling and one of their motors as they are well regarded but if you want to play with water grab the big Castle X ESCs.

I imagine it'll crawl pretty great at this point though it's not going to have brushed motor levels of super slow crawling potential like say a brushed Bomber with 2 speed and 5.8 tyres. But it'll go fast as well as do an solid job at crawling.

I personally spend far more time crawling and trailing than zooming around so my RR gets far less driving now but if mine crawled great with better foams and a sensored system it would be pretty impressive.

I've even pondered what it would take to shoehorn a Yeti or Bomber gearbox with 2 speed in mine. There's loads of room in the interior and that would make it crawl like a champ IMO and I would remove one weak link in the RR drivetrain. I find it extremely stable on slopes and very capable considering its huge pan.

Luckily I have an extra big mamba max X and guess I need tobdrcide what motor to pair it with. Exactly, compared to anything out there it's very stable and way more predictable while staying planted. I hear ya, I know it could be impressive I just lack the knowledge on how to make this happen

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[willyg1981]

It's the sensored system which is the key , it gives such a smooth start up I love them


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[CoolRunning]

That sounds like you already have the platinum level power system. Install and enjoy!!!