Also here: https://www.modellbau-seidel.de/inde...iya&best=47326

Both shops in Germany though, and no idea about cost of international shipping...

Depending on the rules set (i.e. if allowed) I'd much prefer the SR over the RR, as the suspension on the S type models is vastly superior.

https://tamico.de/Tamiya-47439-TT-02...SR-Chassis-Kit
https://www.modellbau-seidel.de/inde...iya&best=47439

The SRX is also a nice version, but compared to these SR offerings, with over $100 more, too expensive IMO.

TT-02D (drift spec): includes oil shocks and full ball bearings, and includes a body depending on the kit.
TT-02R also includes the above (oil shocks and bearings), but goes further to also include aluminum drive shaft, steel out drives and dog bones(drive shafts), speed tuned gear parts so you can use any manufacturer spur to properly gear to brushless motors, 3deg rear aluminum hubs, and a few other blue bits.
TT-02R does not include a body, so this suits it well to selecting your own GT preferred body set.

The latest.

Hey,

I have a Tamiya TT-02 Type-SR new in box. Should I build it up or get the newly released Tamiya TT-02 Type-SRX? Its pretty hard to figure out which kit has better upgrades, they are both pretty similar.

Thanks.

IIRC the SRX uses an updated, newer TC suspension (54886) than the slightly older SR. I'm not sure, but I seem to remember that this newer suspension doesn't work with the droop screws add-on (54638), but I might be mixing this up with something different. Cannot find what shocks are used on the SRX - 50746 are included with the SR, however.

EDIT: Apart from those two uncertainties (not even having the option to set droop by screws would be quite a let-down though, if true, as this is a major setup/tuning aid, which I'd not like to lose and I find it hard to imagine the updated suspension is so superior as to completely compensate for that), IMO the SRX seems to be a little better equipped, be it included parts or small improvements in detail (better front spool, aluminium prop shaft, speed gears, blades on DCJs and universals) - but I've seen price differences of 110€ between the two kits around here... . I sure like the small improvements on the SRX and kinda wish mine had these nifty details, but it's a TT-02 still, and I think I've sunk enough money into mine.

???

.

Wanted to add my fun little drifter to this thread!

Saw this little note in a recent Tamiya TT-02 variant manual.
Glad to see Tamiya has finally caught on to what most experienced builders have been suggesting for a while now.

Best investment I made. awesome tool to uses.

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.

----------

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.