Trailrunner was my first RC 2 years back. I loved the scale looks of it and was quite capable in crawling after adding SSD brass weights. I also wanted to upgrade to bigger tires after watching this video but waiting until I bought trx4 2021 bronco. I upgraded my bronco to use proline hyrax tires and moved the canyon trail tires from the bronco to my trailrunned. This is when I experienced severe body rub and I had to trim the fenders. It has become supper capable in crawling especially now that I have a hobbywing fusion SE (note that the original motor was pretty good too!). I wish I could keep the scale looks on my trailrunner as that is very important for me (which is why I would never modify the body of my trx4 bronco). The only thing I wish I had on the trailrunner was 2 speed transmission so that I could occasionally bump up the speed on trail - that is one super fun part with trx4 bronco.
@@BigSungHobbies yeah and the next things I want to do are good light kit and maybe play around with a different pinion gear to improve speed without sacrificing on low speed control
Very similar to biking. Bigger wheels roll easier over stuff, and softer compound grips better. Yeah, really liking the change. I think I would be happier with 4.7" tires that I have on my Enduro Sendero, but in order to do that I will need to really hack up the body, and I didn't want to go there. 4.19" is going to be good compromise.
Thanks. I was real curious how the wheel/tire change will affect the performance. The 4.19" KM3 in Predator compound made a huge difference, and really liking the change.
I put these tires on my UMG 10 about a 1.5 years ago and was quit impressed with them....I agree the change of tires on the Trailrunner does make it look so much better and they really do fill out the wheel openings great .....great job...
Yeah, I am really liking the change on the wheels/tires. Trailrunner is pretty good from factory, so I am not going to be modding it as heavily as Enduro Sendero. I think it can use a bit of weight up front though.
As a Trailrunner owner myself I can say that with the 4.19 tires, it is almost as capable as something like the less expensive TRX4 or the Scout II. The major disadvantage when comparing to those units is not with the tires though. It is the fact that those 2 models, along with many other crawlers these days (SCX III for example) run portal axles. This gives a noticeable change in ride height that you can not accomplish with the Enduro without spending ridiculous amounts of money on upgrades and frankensteining your truck in the process.
Just recently picked up TRX-4 Sport and I have been putting it through its pace. Like everything there are pros and cons. This applies to portals as well. Great clearance, but it tends to lead towards higher CG which causes issues in sidehilling. IFS has its pros and cons as well. But I think the main purpose of Trailrunner is trail truck, and not a crawler. Can it crawl? Definitely. Can it be a dedicated crawler? I think there are better options if you are looking for dedicated crawler. I bought it knowing this, and I am quite happy with it. The biggest personal complaint is not on IFS, but on the body. The overhangs especially on the rear really bothers me. Unless I cut up the body, it’s always going to be there. I have cut up the body on both Sendero and TRX-4 Sport to perform better, but I am hesitant to take scissors to it :(. I guess I can always pick up a new body for it. By the way, modification is needed on any RTR. Surprisingly near the same amount of modifications were needed for both Sendero and TRX-4 Sport: new servo with metal horn, new esc (recommend Hobbywing 1080), new tires/foams/wheels, a bit of brass to the front (SSD brass knuckles and brass diff cover are all that I am using on Sendero, and brass portal covers and brass wheel weights for Sport), and a solution for panhard mount.
@@BigSungHobbies Of course! My point really was that there are no specific upgrades designed for the Trailrunner at this point in time, where as I can walk into a hobby shop tomorrow and get everything I would need for a TRX-4 off the shelf. Modding a Trailrunner at this point requires some knowledge and a large number of measurements to find parts that you can make work.
@@natev580 So true. It's a new kid in the block. That being said, one good thing about Trailrunner is that they fixed the soft plastics. Although it doesn't state it, it ships now with hard plastics. Also IFS provides good forward weight bias thus makes it easier to get to 60/40 weight distribution that I am looking for on my rigs. The only weight that I have added is brass wheel weights on front, and I am sitting at 58F/42R with 3S 4300 shorty battery on the battery tray. I plan to add SSD brass knuckles, and call it a day as far as adding weights. Other than the tires/wheels, the only other upgrade that I have done is replace stock servo with Annimos 25kg servo and replace stock ESC with Hobbywing 1080. Once I install the SSD brass knuckles, I think I am going to be done with it. Wait, I just remembered that I added IERC shock keys to the rear to droop the shock a bit. So what specifically are you planning to upgrade?
@@BigSungHobbies The only thing I've done at this point, keep in mind that I have only had the truck for a little over a week, is change out to 4.19 Mickey Thompson Baja tires from RC4WD. I'm still running on my old Venom NiMH batteries, so first and foremost on my list is to upgrade to probably just 2S LiPOs for now. I would like to change the gearing. Although it has factory overdrive for the front wheels, I would like to get a little more front pull. I find the weight to be just fine on the front end, however I plan on adding a winch servo up there so that will add a little bit of weight. With some modification to the rear shock mounts, the Axial trailing arms work on this truck and allow for more rear suspension travel so I would like to install that kit as well. Outside of that, I am really impressed with how this thing performs in the wilderness. I wish there was maybe an indoor course near me so I could really test it, but there doesn't seem to be much in the way of that where I live. Oh and I MIGHT put a higher turn bushless motor in it as well at some point.
@@natev580 If you are going to upgrade the battery, then look for Gens Ace Adventure 3S either 4300 mAh or 3600mAh shorty battery. Well worth the money. No need to settle to 2S. It comes with 11.83% OD option, that's going to be plenty enough. Check out my video comparing stock 5.7% vs. 11.83% OD. Trailing arm seem to work well, but I don't see a need for it (personally for type of ride that I do). On real steep course, the front end needs a bit of weight...btw, I have a video coming up tomorrow morning that shows why you need the additional weight on front. Before you go brushless setup, seriously consider upgrading the servo and ESC...just my recommendation.
Another great test !! Thanks. You may want to check out the trailing arm kit made by Extreme RC 4x4. (no Im not affiliated......lol) It looks really cool.
Yeah, IFS can definitely benefit from bigger tires. Maybe I am used to 4.7" tires, but as good as Proline KM3 in 4.19" tires are, I wish I could have gone with 4.7" tires. Unfortunately, I have to trim the body quite a bit which I didn't want to do on this body if I went with 4.7" tires, while no trimming is needed with 4.19". One thing. I might recommend the G8 compound over Predator compound if you do go with KM3 4.19" tires. Not sure if it's the smaller diameter or thread design, but it is wearing out much faster than my 4.7" Hyrax in Predator compound.
On line #3, head on the front bumper still rubs. On angled approach I was able to mitigate it. On stock tires/wheels, even on angled approach, the front bumper was still rubbing. The KM3 in Predator compound is much softer compound than the stock tires, and such there is big difference in climbing performance. The bigger size of the tires makes a difference as well. With stock, on line #6, I just couldn't do it whichever way I tried as the links and skid plate was getting caught, but with bigger size tires, I was able to clear it. I am liking the change.
I picked up the tires and dual stage foams from RPP Hobby (www.rpphobby.com/). Amain Hobbies (www.amainhobbies.com/) also carries them. As for the wheels, I picked it up from Amazon.
Trailrunner was my first RC 2 years back. I loved the scale looks of it and was quite capable in crawling after adding SSD brass weights. I also wanted to upgrade to bigger tires after watching this video but waiting until I bought trx4 2021 bronco. I upgraded my bronco to use proline hyrax tires and moved the canyon trail tires from the bronco to my trailrunned. This is when I experienced severe body rub and I had to trim the fenders. It has become supper capable in crawling especially now that I have a hobbywing fusion SE (note that the original motor was pretty good too!). I wish I could keep the scale looks on my trailrunner as that is very important for me (which is why I would never modify the body of my trx4 bronco). The only thing I wish I had on the trailrunner was 2 speed transmission so that I could occasionally bump up the speed on trail - that is one super fun part with trx4 bronco.
2 speed transmission on TRX is one of the nice features. Sounds like you got a nice build going on the Trailrunner.
@@BigSungHobbies yeah and the next things I want to do are good light kit and maybe play around with a different pinion gear to improve speed without sacrificing on low speed control
Wow! What a world of a difference from just tires and wheels! Thanks for the side-by-side comparo! TKC!
Very similar to biking. Bigger wheels roll easier over stuff, and softer compound grips better. Yeah, really liking the change. I think I would be happier with 4.7" tires that I have on my Enduro Sendero, but in order to do that I will need to really hack up the body, and I didn't want to go there. 4.19" is going to be good compromise.
Awesome run my rc brother what a huge difference between the tires cant wait for the next upgrade
Thanks. I was real curious how the wheel/tire change will affect the performance. The 4.19" KM3 in Predator compound made a huge difference, and really liking the change.
I put these tires on my UMG 10 about a 1.5 years ago and was quit impressed with them....I agree the change of tires on the Trailrunner does make it look so much better and they really do fill out the wheel openings great .....great job...
Yeah, I am really liking the change on the wheels/tires. Trailrunner is pretty good from factory, so I am not going to be modding it as heavily as Enduro Sendero. I think it can use a bit of weight up front though.
@@BigSungHobbies Element RCs really respond to a little weight upfront....
Loved whole video 👍💪
Glad you liked it!! Thanks for checking out my video.
Good to know 4.19 tires fit. Was wonder what to do for my trailrunner. Was there any rubbing issues with them?
No rubbing issues with 4.19 tires. It worked well.
As a Trailrunner owner myself I can say that with the 4.19 tires, it is almost as capable as something like the less expensive TRX4 or the Scout II. The major disadvantage when comparing to those units is not with the tires though. It is the fact that those 2 models, along with many other crawlers these days (SCX III for example) run portal axles. This gives a noticeable change in ride height that you can not accomplish with the Enduro without spending ridiculous amounts of money on upgrades and frankensteining your truck in the process.
Just recently picked up TRX-4 Sport and I have been putting it through its pace. Like everything there are pros and cons. This applies to portals as well. Great clearance, but it tends to lead towards higher CG which causes issues in sidehilling. IFS has its pros and cons as well. But I think the main purpose of Trailrunner is trail truck, and not a crawler. Can it crawl? Definitely. Can it be a dedicated crawler? I think there are better options if you are looking for dedicated crawler. I bought it knowing this, and I am quite happy with it. The biggest personal complaint is not on IFS, but on the body. The overhangs especially on the rear really bothers me. Unless I cut up the body, it’s always going to be there. I have cut up the body on both Sendero and TRX-4 Sport to perform better, but I am hesitant to take scissors to it :(. I guess I can always pick up a new body for it. By the way, modification is needed on any RTR. Surprisingly near the same amount of modifications were needed for both Sendero and TRX-4 Sport: new servo with metal horn, new esc (recommend Hobbywing 1080), new tires/foams/wheels, a bit of brass to the front (SSD brass knuckles and brass diff cover are all that I am using on Sendero, and brass portal covers and brass wheel weights for Sport), and a solution for panhard mount.
@@BigSungHobbies Of course! My point really was that there are no specific upgrades designed for the Trailrunner at this point in time, where as I can walk into a hobby shop tomorrow and get everything I would need for a TRX-4 off the shelf. Modding a Trailrunner at this point requires some knowledge and a large number of measurements to find parts that you can make work.
@@natev580 So true. It's a new kid in the block. That being said, one good thing about Trailrunner is that they fixed the soft plastics. Although it doesn't state it, it ships now with hard plastics. Also IFS provides good forward weight bias thus makes it easier to get to 60/40 weight distribution that I am looking for on my rigs. The only weight that I have added is brass wheel weights on front, and I am sitting at 58F/42R with 3S 4300 shorty battery on the battery tray. I plan to add SSD brass knuckles, and call it a day as far as adding weights. Other than the tires/wheels, the only other upgrade that I have done is replace stock servo with Annimos 25kg servo and replace stock ESC with Hobbywing 1080. Once I install the SSD brass knuckles, I think I am going to be done with it. Wait, I just remembered that I added IERC shock keys to the rear to droop the shock a bit. So what specifically are you planning to upgrade?
@@BigSungHobbies The only thing I've done at this point, keep in mind that I have only had the truck for a little over a week, is change out to 4.19 Mickey Thompson Baja tires from RC4WD. I'm still running on my old Venom NiMH batteries, so first and foremost on my list is to upgrade to probably just 2S LiPOs for now. I would like to change the gearing. Although it has factory overdrive for the front wheels, I would like to get a little more front pull. I find the weight to be just fine on the front end, however I plan on adding a winch servo up there so that will add a little bit of weight. With some modification to the rear shock mounts, the Axial trailing arms work on this truck and allow for more rear suspension travel so I would like to install that kit as well. Outside of that, I am really impressed with how this thing performs in the wilderness. I wish there was maybe an indoor course near me so I could really test it, but there doesn't seem to be much in the way of that where I live. Oh and I MIGHT put a higher turn bushless motor in it as well at some point.
@@natev580 If you are going to upgrade the battery, then look for Gens Ace Adventure 3S either 4300 mAh or 3600mAh shorty battery. Well worth the money. No need to settle to 2S. It comes with 11.83% OD option, that's going to be plenty enough. Check out my video comparing stock 5.7% vs. 11.83% OD. Trailing arm seem to work well, but I don't see a need for it (personally for type of ride that I do). On real steep course, the front end needs a bit of weight...btw, I have a video coming up tomorrow morning that shows why you need the additional weight on front. Before you go brushless setup, seriously consider upgrading the servo and ESC...just my recommendation.
I run the same except in g8. Great tire for sure. Nice comparison video
Thanks. Really liking the tires so far.
Another great test !! Thanks. You may want to check out the trailing arm kit made by Extreme RC 4x4. (no Im not affiliated......lol) It looks really cool.
Cool, thanks for the info!
Just picked one of these up and I gotta say I I'm gonna need some new tires it's a fun truck though
Yeah, IFS can definitely benefit from bigger tires. Maybe I am used to 4.7" tires, but as good as Proline KM3 in 4.19" tires are, I wish I could have gone with 4.7" tires. Unfortunately, I have to trim the body quite a bit which I didn't want to do on this body if I went with 4.7" tires, while no trimming is needed with 4.19". One thing. I might recommend the G8 compound over Predator compound if you do go with KM3 4.19" tires. Not sure if it's the smaller diameter or thread design, but it is wearing out much faster than my 4.7" Hyrax in Predator compound.
You went different angle on some lines but yes it is a big difference 💪🏼
On line #3, head on the front bumper still rubs. On angled approach I was able to mitigate it. On stock tires/wheels, even on angled approach, the front bumper was still rubbing. The KM3 in Predator compound is much softer compound than the stock tires, and such there is big difference in climbing performance. The bigger size of the tires makes a difference as well. With stock, on line #6, I just couldn't do it whichever way I tried as the links and skid plate was getting caught, but with bigger size tires, I was able to clear it. I am liking the change.
Looks great. did you have to trim the body?
Thanks, and no trimming is needed with 4.19" tires.
do you have to gear down when you put those bigger tires
No, you do not need to gear down. Outer diameter difference is not that big.
Irealy like those tires and wheels can you send me the link where you got them please pleas
I picked up the tires and dual stage foams from RPP Hobby (www.rpphobby.com/). Amain Hobbies (www.amainhobbies.com/) also carries them. As for the wheels, I picked it up from Amazon.
Buen consejo!
Like
Muchas gracias!
did you lift the body to fit the bigger tire?
The stock body can handle 4.19" tires without any issues. I heard that it can go up to 4.4" tires, but I never tested that.
ok cool, thanks!
No problem. The only way you can fit 4.7" tires is to trim the fenders. Good luck.
Can you send me where I can buy those tires
I picked them up from RPP Hobby (www.rpphobby.com/). They are also available at Amain Hobbies (www.amainhobbies.com/).
After break in should be better ..
Definitely. The stock tires are not bad either, but the bigger and softer predator compound definitely makes a difference.