Does anyone know of any companies that sell complete screw sets of hex socket button head self drilling screws for the TT-02 or TT-01.

I know that Yeah Racing sells these types of screws in different length packs of 10 pcs. Here are links to the Yeah Racing hex socket button head self drilling screws...

- 3x6mm - (https://www.yeahracing.com/titanium-...scription=true)
- 3x8mm - (https://www.yeahracing.com/titanium-...scription=true)
- 3x10mm - (https://www.yeahracing.com/titanium-...scription=true)
- 3x15mm - (https://www.yeahracing.com/titanium-...scription=true)

While I have a Tamiya JIS screw driver, I just wanted to replace the stock screws on a TT-02 kit without having to worry about different threads in the screw hole.

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EDIT (thanks simple for the part#)

I found the TT-02 set I was looking for on Yeah Racing
Yeah Racing TS-TT02 - (https://www.yeahracing.com/titanium-...-tt02-00037120)

I usually buy online from Amazon. The 2 of the 3 pictures on the Amazon listing showed machine threaded screws (not self drilling). It also didn't list the contents of the kit. Yeah Racing's website has better pics/info.

Check out RCmart and ASIATEES they have alot stuff to these.
Atleast had, Very cheap. Tons of options when i did my Tamiya TT
i regret i did not buy a better competetion kit insteath.

That time Schumacher MI had same price like hop up TT.
and the Schumi was like 10x better car than this Tamiya.

Today these TT can be cool, like Vintage racing, stock almost.
And old style retro bodies. Like Mustang or old Camaro

I clicked on the links you provided and the gears pictured in each link actually have the correct number of teeth (yes I manually counted...lol).

The short answer is the number of teeth inside the gearboxes will determine the internal drive ratio of the gear boxes.

40/15 = 2.66666666667 gearbox ratio
39/15 = 2.6 (Stock TT-02 gearbox ratio)

If you look at Page 29 in the XV-02 manual, it describes how you can use different gearbox ratios on the XV-02 to affect how the front & rear oiled-filled diffs operate on the car. This can be an advantage when running on dirt or surfaces with less than ideal grip levels. Here is a direct link to the .pdf manual on Tamiya's website..
https://www.tamiyausa.com/media/file...-1329-65aa.pdf

Keep in mind that the XV-02 also has fixed spur gear in the center of the car/drive line. You can optionally install an oil-filled gear diff in the center of the car attached to the spur gear. This would give the car 3 oil-filled diffs on the drive line.

Is there an advantage changing the internal ratio/gear on a TT-02 on-road car that already has oil-filled gear diffs? Maybe if you are running a fixed timing 17.5 motor with the stock motor mount. However depending on the rules of the class, it may be illegal or go against the spirit of the rules. But realistically the difference between a 2.6 and 2.66666666667 ratio is very little (but not exactly nothing).

Yeah Racing is the only company that I am aware of the has the "titanium" self tapping hex cap screws sets.
https://www.rcmart.com/yeah-racing-t...%20screw%20set

Careful with those, they will strip out fairly easy at the hex. That's the lowest grade titanium money can buy.. Strength is a little better than aluminum.

For TT01 and TT02 hop ups, is it still RC MART, and Asiatees that are kings?

Maybe there is other great chinese online shops also? better than these ? in case of old Tamiya Hop Ups ?

I use TQ RC Racing and Integy.

I implore You, Please don’t encourage nor engage this poster.
He or it needs to go away, They are all over in the last few months posting nonsensical baloney trying to sell Chinese bullcrap. Please ignore Him,It,They, whatever.

I apologize if I have posted this previously. If you own a TT01 or TT02 you may be interested if you live in the Chicagoland area. The Hobbytown in St. Charles, IL has an indoor and outdoor racing series. They have a TT Class. I have included their rules. The next parking lot race is July 1st.

I have these on my parking lot car. I replaced the existing kit screws with these after already assembling the kit. I have not stripped any heads or threads. Not many high torque needs on a TT02.

TT02 parking lot racing is fun.

I was looking for parts online recently and came across Tamiya 54815 (https://www.tamiyausa.com/shop/optio...erlwr-sus-arm/)

This part number is listed for the TT02 B kit, due to the lower suspension arms. Has anyone used the reinforced gearbox covers that come with it on their regular TT-02 on-road cars? I looked at some Japanese reviews on Amazon, and it looks like it should fit. The only downside is not needing TT-02 B lower a-arms.

Also if you have a chance, download the new TT-02 SRX manual and you can see some of the XV-02 parts that are used in the driveline. Look for the red circle with a white down arrow on the following page/link

https://www.tamiyausa.com/shop/110-4...x-chassis-kit/

Yup, 54815 fits. I grabbed a sprue after seeing mentions earlier in this thread that people sometimes break the gear cover in a crash and I'm a sucker for "Oh, that's available, I'll spend." Can't say if it makes any difference or not (haven't finished that particular build yet) but it does allow for a third screw to attach your carbon damper mounts and the ones from PSM are pre-dimpled for the hole, you just have to drill it out. The dimple is about .5mm low, so drill on the high side of it.

Wasn't quite sure where to ask this, but this felt like a good a place as any. Any thoughts on a set of light buckets to fit this body? It's a McAllister Riley Daytona Prototype that's going on a TT02 for some night racing. Was going to try to make my own, but the shape is a bit tricky. Might still go that route.