The fact that nobody is willing to give any certification or recommendation about compatibility. Ask tekin or GM, but the answer will probably a mix maketing BS + a hidden "we don't know we've never try".
So if your not ready to take some risk then just buy a GM motor to go with your Genius 95 :yes:

Edit (just my point of view)
the answer is simple Tekin motor in term of design and feeling react alot like castle motor, so it's safe for me that you can go up to 3S on most low and middle kv motor. A high KV motor will suck a lot of current specialy if you put a large gearing on this one with lot of load. It might be problem in term of acceleration if your battery can't follow (matched Nimh or 20C + lipo is a must have here)

Weee, I like risk :) Only difference is that in europe GM is cheaper and is known for very high efficiency (low working temp) and good output, about tekin's redline I cannot find anything apart this thread!

Yeah this suck, it's true that I'm the only personn who did care speaking about it( a tekin guy speak a little about it too o_o). Strange it's like speaking or using a sensorless motor is a defect when it come to competion motor in 1/10 ...
About efficiency it's decent but it still run hot. probably not as efficient as a good 4 pole motor

Man, but in europe most of team drivers drives sensorless :) It's matter of esc only :) But anyway, still no reviews of this motor anywhere, what the f...?!

I got me a Tekin modified 4800kv motor to see if it's any good. It's a soso motor in my opinion. There is too much play in the rotor, just like the mamba motors. Heck, my feigao motors have less play then that. Power/Torque wise...pffff not impressive. I had to go to 4s A123 to "wake" the motor up. It spools up slow for my taste, but maybe it's designed like that.

Play in the rotor you mean, like side play or like a movement to remove the rotor from the can ?. I have 0 side play on mine and same lateral play as feigao motor.

4800 kv motor is most likely to be used on medium track for off road, i wouldn't go under 5800 kv for onroad. Car with small tyre are more RPM based. That's why TC guy prefer sensored, because most sensored motor can goes up to 12000 kv and small rotor allow fast spool.
In off road you will just spin the tyre and lost all grip doing this

I am comparing the 4800kv tekin motor against the 4400kv feigao, 4900kv feigao, 4200kv basic lehner and 4600kv little c40 hacker motor. The Tekin motor produces as much power as the little hacker motor. Kinda petectic.

Still more than enought to pull wheeling with 2S A123 on my T4. Sure this motor is not mean't for drag racing

Well, I got my 278 today, nice packing, nice wires with ready 4mm golds, but no data on gearing, power supply, current, efficiency. So I have to guess how to gear it and so on...

Exactly like I did. You need a good esc (sp gt , RS/R1 pro or mamba max) and good nimh pack or 20C lipo to get the most of this kind of motor.

My advise go for a low gearing like 18 to 20 teeth, don't play with timing right now.
Set it low to very low.
Then gear it differently until you find the good temp/speed combo.
Then you can play with timing to get more punch out of the system

I'm on onroad xxx-s, so pinion will be like 16 :) Timing is a problem, my GM motors require 30deg, I wouldn't like to reprogram esc's for this motor right now.... ESC can handle 95A constant, I have limited it to 60A, so it should be enough I hope :) How is your engine doing?

Still running without problem. Sealing is pretty good, I did notice much less dirt in it than with my previous Trinity motor.
Btw don't worry about the strong smell that may come out of the motor when it get hot. it's probably due the large amount of resin used to fix copper inside the can.

Well, I do have a small movie with a picture.
Lipo are definitly a must have when running brushless. The pack i use cost me around 45 $ and perform much better than my unmatched nimh pack that i bought the same price one years ago.

http://pix.nofrag.com/6/f/c/27932ab8...3f0d10c8tt.jpg

http://www.youtube.com/watch?v=bXvNWlp9NZg

lol, nice vid, I like how you are just sitting there waiting to happen and then you see this thing fly by leaving dust path in the background

snellemin are you running a123 in 1p?
I suspect these tekin motors need a lot of current to get them going and in my opinion a123 cells are not quite good enough in 1p format to provide motors with full 540 size rotors with the current they need.