I'm on direct drive. I have a slipperential coming though.

In fairness though, I've run direct drive for the last 8 months in various cars, and only the Tekin rotors have ever failed.

I ran a Losi motor today, same set-up, same kV, etc as the Tekin. Rotor didn't fail...

yeah, im sorta not really going on a comparison to other motors (we all know it shouldn't be happening) - just trying to figure out how and why these particular ones might be seperating.... i have my fingers crossed mine wont let go...

I'd like some input from Tekin here with their thoughts on the situation (also why they think it might be letting go) and what they are doing about it... It's a real shame tho, cause i really like my tekin setup =)

I only ran the Losi motor as Tekin failed to get the replacement rotors to me in time.

It appears almost all the V2 failures are not from the US. They seem almost all European. I can't help but think more testing is needed in environments other than US tracks. European tracks are far more flowing and bumpy, they aren't overloaded with jumps and straights, but more sweeping corners and 'obstacles' such as rumble strips, bomb holes and banked corners.

I'm a little disappointed with how long it's taken Tekin to get my new rotors here. Three weeks tomorrow since they said they'd sent them! I know I'm not in the US, but for a company trying to 'regain my trust', choosing very slow shipping, so I had to buy a new motor to run last race meeting, is not a great idea.

Sunday is the last race meeting of this season before I run 1/10 off road indoors, and I'd like to give my Tekin a run to see if I can actually finish a final with it, particularly because I have my new slipperential.

The same here ... I think I will receive my ESC back in early 2010 ...

From what i've seen following brushlessboy16's thread titled the Brushlessboy16 curse, Tekin has been able to get him his rx8 fixed and back to him in a week or 2 both times. Granted, he does live in the USA, so that timeframe definitely wouldn't apply to the UK and germany. But repair time in tekin's factory should be the same. If any of my stuff had to be sent overseas, I know I'd be calling about it just about every day

Got new rotors in a weeks
RX8 (the messed up one i got from tower) turnaround time about 3 weeks with registered airmail to Tekin and USPS Airmail back so quite good.

Tekin service has been so far top notch, if only the rotors were not .......

I'd like to know what setup you're running and having rotor issues. I'd like gearing, car, battery used,etc.

Well for me its a Tekno rc v3 x2-crt conversion running standard spur,12 tooth pinion,tekin Rx8/T8 2000kv truggy motor,hyperion 5s/6500mah G3 lipo,firstly, used direct drive,v2 rotor broke,2nd time used mechanical brakes, with esc drag brakes and normal brakes turned off,replacement v2 rotor broke even quicker,third time i am going to try the tekno clutch,with mechanical brakes,on a 13 tooth clutchbell,hopefully the rotor will last longer then 4 minutes,but will let you all know.

That is a lot of power! 2000 on 5s? I'd rather see a setup around 5s 1700 or 1550. I'm sure your setup works. Do you turn down the power?

Losi 1.0, 2.0, Xray XT8, MBX5T

All are 1700kv motors on 5S running either Zippy 30C/40C 5000mah, Hyperion G3 35C/65C 3300Mah and 4200mah or even A123 6S2P

All temps are normal. Nothing showing extra stress on the motor.

All cars are under 10lbs RTR

80% of the cars use RCM slipperential.

All geared 38-43mph

Different cars, different driving styles, same motor issues.

All I did was change T8 with Neu 1415 and I am sure it will last forever. As I used to run Neu 1512 2050kv on 5S in my mugen and no issues. The Neu 1512 used to be in ma heavy bashing maxx and went throught lot of stress with flying colors (including hammering stuck pinion) and still works great.

Rest of the guys will follow as I dont see a single reason how can our setup cause loose rotor as most failures differ. Sometimes just magnets separate, sometimes just the front spacer along with couple pieces of the rotor.

With the rotor being made from so many pieces the glue is not strong enough.

Hi got the current limiter turned down to about 60%,did originally order a truggy 1550 motor, but got sent this in error,but it took so long to turn up,i did'nt worry about it.

If I don't ask to look at setups we can't understand what everyone is running. If say a guy run your setup is breaking rotors frequently while others are not than we need to change our testing to your setup to reproduce the failures... I don't think your setup is the issue...

But I can learn from your failures just the same, so I ask.

Well I have to say, that I am running 2000kv motor on 5s as well, both in truggy and a buggy, with slipperential. 12tooth pinion. Did changed it to 14tooth for one big track.
Could be a problem, that I should use 1700kv motor.
So now I have 2100kv castle neu in it and I will see if it breaks as well.

btw, I is teamtekin on vacation or something ? not getting anything back from support for my last rotor issue ...

No, nobody is on vacation. We were closed for the holiday on monday.

I'm surprised to see guys running that "hot" of a setup. I think a 2000 on 4s is plenty on all of the tracks I've been to.