Peter_B 997 Posted April 21, 2018 First bash of the year for my boys today with their Lunchbox and Mad Bull. When putting the Mad Bull away I noticed one of the rear wheels was loose. I haven't checked if it has stripped the hex splines yet. Same thing happened last summer and I read that a fix was some new wheel nuts. So I got some. It's not had much use since and it's worked loose already. Why is this seemingly common on the Mad Bull and not other cars? What's the fix? Loctite on the wheel nuts? Got to say, I am once again amazed at the punishment a Mad Bull can take. You name it, it has hit it and no damage. Share this post Link to post Share on other sites
MadInventor 3884 Posted April 21, 2018 I'd try some non Tamiya 4mm nyloc flange nuts. They're like normal wheel nuts, but with a flange on the back like Tamiya 3mm flange nuts, and the flange stops the nut coming loose. Share this post Link to post Share on other sites
Peter_B 997 Posted April 21, 2018 1 hour ago, MadInventor said: I'd try some non Tamiya 4mm nyloc flange nuts. They're like normal wheel nuts, but with a flange on the back like Tamiya 3mm flange nuts, and the flange stops the nut coming loose. Do you mean ones with a serrated flange? The ones on the car are non Tamiya nyloc flange (non serrated) Share this post Link to post Share on other sites
MadInventor 3884 Posted April 21, 2018 2 hours ago, Peter_B said: Do you mean ones with a serrated flange? The ones on the car are non Tamiya nyloc flange (non serrated) Yep, you want the serrated flange and the nyloc in one nut eg (just using this sellers item as an example, never used the seller themselves): https://www.ebay.co.uk/itm/M4-4mm-A2-STAINLESS-STEEL-FLANGED-SERRATED-NYLON-INSERT-NYLOC-NUTS-FLANGE/121633744950?hash=item1c51efa836:m:mIum86_3P_6k8gK_gzzgOIQ Share this post Link to post Share on other sites
Peter_B 997 Posted April 22, 2018 @MadInventor thanks I'll give some of those a try Share this post Link to post Share on other sites
berman 5315 Posted April 22, 2018 19 hours ago, Peter_B said: The ones on the car are non Tamiya nyloc flange (non serrated) If you are using a brand like 3racing, I find the nyloc in the Tamiya ones of better quality than hong kong ones. I had an issue where I bought some black coloured nyloc wheel nuts from 3/yeah racing and the nyloc was that soft they kept undoing themselves because I decided to save a couple of bucks over the Tamiya ones. I ended up buying the Tamiya ones in the end. Just be aware, they are not all the same. Share this post Link to post Share on other sites
lentner3 281 Posted April 22, 2018 Serated flange is the best type of wheel nut. Looks a bit weird on some wheels but I struggle to get them off sometimes they hold that well. Share this post Link to post Share on other sites
racer1 117 Posted April 23, 2018 Blue Loctite will fix the issue. I use it on all my runners regardless of brand. Share this post Link to post Share on other sites