Hi all! Today I’d like to try something new, a product review. Recently both R2hobbies and Eagle Racing introduced a stealth body mount set with a design very similar to the discontinued Waru body mount set. These things have caused quite a hype, and its no surprise they are sold out almost all the time. Luckilly for me the silver version wasn’t sold out yet, so I ordered a set to test for you.
See the whole review after the jump
R2hobbies has put these on the market a few weeks ago. They sell them for about 13 to 15$US (depending on being logged in or not) ex. shipping in 5 different colours; Red, purple, blue, black and silver. You can order it here. At first glance the mounts seem very nice with basicly all the settings you need for mounting any body, except for maybe vans or wagons. The description however is a bit vague with measurements that don’t say much and no stating of compatibility with the different chassis’. Looking at the pictures though it seems like it should fit on most chassis that have carbon shocktowers and bumper mounted front bodyposts. Compared to the 80$US of the original Waru mounts this one is very cheap and I just took the risk and ordered one.
Packaging and Contents
As always, R2hobbies packaging isn’t pretty. They have switched to another type of bag AGAIN, but this time its a ziplock so that’s good. I personally don’t care much about the looks of the packaging just as long as its strong enough so the contents don’t get damaged during shipping.
Inside we find all the mounts, a bag of screws and shims, some velcro and a manual. R2hobbies kits are sometimes missing some parts, but with mine everything was there. You even get some spare screws and a lot of shims in different sizes to adapt the mounts to your type of chassis.
Obviously the first thing you do when you are going to install the kit is check the manual. Well.. its not much help here. The manual is printed in very bad quality, and from what I’ve heard this is with all the sets they’ve sold so far so its not just an empty ink cardridge. The pictures don’t tell you anything that you didn’t already know and on top of that the only bit of text on the manual is miss-spelled.
So I just started off without the manual. I mounted the rear half in the same position as my original bodyposts on the shocktower, and immediatly ran in to a problem; The mountingplate is way to small. This is with the largest of the two mountingplates but the gap is way to big to fill with shims.
Next I’ve tried mounting them in the holes for the shocks. This is the way R2hobbies mounted their set in the product description, but it didn’t work for me. This time the mountingplate was way to big, and even when I tried the smaller mountingplate it didn’t fit. Now what?
I’ve decided to just make my own mountingplate so I can use the bodypost holes in the shocktower. Since I have the silver version, I could easily make my own mountingplate from a piece of aluminum plate and no one would notice. Just one problem with that plan.. I don’t have any aluminum plate. For now I just went with a bit of thick lexan, but I will make one from aluminum in the future. Another advantage of making a new mountingplate is that you can make it bigger so you have more surface to put velcro on. This will make the bind between body and mount much stronger.
The front half was a lot easier to build, although not entirely without problems. The pictures and manual suggest you use the larger of the two mountingplates on the front. I tried that at first, but it was bending my front bodyposts as its too wide. Looking at the pictures on R2hobbies.com closely you can see that they have the same problem, but they just took the pictures from a smart angle so you won’t notice. I switched to the smaller of the two mountingplates and this was too small, surprise surprise.. I used 2 of the thick shims on either side of the mountingplate and it was a perfect fit.
One thing R2 doesn’t mention in the description is that the front mounts are made for 6mm diameter bodyposts. However most pro-chassis’, including my DRB, have 5mm bodyposts. It does work with the 5mm bodyposts, but I would advise to use a longer grubscrew (or some loctite) as there isn’t much thread left and I think the grubsrews would come out due to vibrations.
Testing this thing isn’t that hard. Basicly it comes down to two things; Does it fit most shells and how well does it hold the body on.
For the fitment the answer is easy. Yes, it does fit most shells. The only problems I’ve found were with shells that have a vent in the bonnet right where the mount should go, like the Yokomo 180SX street, and with shells that have very little overhang behind the rear wheels like some hatchbacks. The first is also a problem with normal bodyposts and its an easy fix. The second is a bit more trouble, but you can always trim the rear half of the mounts so it would clear the shell. Not much to worry about there.
As for testing how well it holds the body on I’ve just mounted an old shell with the provided, very small, bits of velcro and started bashing the shell. At no point the shell came off or moved. I could even pick up the whole car by the shell and shake it. The bind of the velcro is amazing! Now I can’t tell you how well it will hold up over time, and offcourse the velcro will wear down at some point, but for now it works really well.
Don’t mind the archgap. I didn’t trim the bodyposts to length yet
There are a few things I would like to elaborate on.
The first is the build quality. The quality of the metals used is quite poor. I’ve already had to replace some of the grubscews as I’ve stripped the hex inside them. And before you ask, yes I am using proper tools. What I would suggest to anyone who bought or will buy this set is to replace all the grubscrews right away with some proper stainless steel or titanium screws. The aluminum also isn’t very strong and you will get a lot of dents in the posts on the rear half from adjusting and tightening the grubscrews. This would offcourse also scratch off the anodizing. So if you want the set to look nice after some time of use then I’d suggest you buy the silver one as it has no anodizing to be scratched off.
The next is the whole point of using these stealth mounts. Its nice to use on a shelfer or maybe a car you only do demo’s with. In competition however this isn’t a smart option. Adjusting the mounts takes a lot of time, time which you could also use to practice. And if you hit the wall or something else and the body moves only the slights bit you will have problems with the wheels rubbing on the shell when steering etc. and it could cost you your battle.
So in short this is an average product. Its cheap, but does need some work before you can really enjoy it. Its a lot better then some DIY project anyway. Also you have to remember that the fitment issues I’ve had are for the Yokomo DRB, and might be different for other chassis’. R2hobbies used the TEH-R31 to display the product and it seems its almost a direct fit for the TEH-R31. The lack of info from R2hobbies is confusing for inexperienced buyers and might scare some people off. But if you really want stealth mounts this is the best way to go.
I hope this review was of any use, and if you have suggestions or comments I’d like to hear them.