Here are my Qfactor measurements and calcs:
The TQ motor is 130mm wide, thus:
E13 e*spec plus cranks (165mm) with the 22.5mm offset gives you a 130+(22.5x2) = 175mm q-factor.
E13 e*spec plus cranks (155mm) has a 19.5mm offset, so a 169mm qfactor.
From e*13 support
"Helix Race e*spec cranks...
Sounds great! Would be cool to know what your motor serial and art no is? It is on the top of the motor, so to you have to loosen the motor mount bolt to see it.
Monster post, so hold tight. An update on my 10 month ownership:
So I am on motor #3, all the way in South Africa. I have an early 9.7 (Aug'22), probably one of the 1st batches to come out of the factory. Major notable issues were, 1. Geo mess-up / lower bb than advertised / changing BB...
Its called “de-rating” by TQ, and it is by design. I received this from them in my correspondence with TQ about the motor cutting power at higher temperatures;
“Under extreme circumstances, derating of the power may occur. This happens in small steps and only as much as is absolutely necessary...
Now we are talking! What would be gold is to try and identify drivetrain losses (drag) or system efficiency at varying outputs. Imagine you could still find hub power meters and combine that with the Garmin pedals. You can then show the cumulative wattage that hits the rear hub. Rider input +...
This is really interesting. I have tried 2 motors on my bike, and 3 motors on 3 other bikes and all exhibit the behaviour described by @ragetty "drag’ after switching off assist". This made me think it is a design issue.
So very keen to understand if your motor has literally no drag after...
That is exactly the sensation I get. Not sure if its a general design flaw or a manufacturing tolerance issue, but it really limits the application of the bike.
I started complaining about the drag with TQ, and their responses have been very slow. So not sure if they are still figuring it out on...
Both my motors felt great in mid and high, basically anything with the motor output more than 90% of my input. But anything less than that there is a marked difference, and it is almost as if am starting to “pull” or work against the motor, and it gets increasingly harder with lower assistance %...
Exactly the phenomenon. I can only think it has to do with heat , and some materials expanding, which adds friction and keep the motor “engaged”. The tolerances looks tight in there, so could be hit and miss between motors.
LBS had to ride the bike on a steep incline, because it is not as...
Hi all, been a lurker and somewhat infrequent poster on this thread. Just an update on my story regarding my motor.
Trek warranty'd my 1st motor due to significant drag in low power and no assistance scenarios. The motor also had a significant under-reading of rider input watts, and that is...
I have the exact same issue, the holes on my frame is already 8.2-8.3mm and no amount of overtorqueing stops the rattle. So much for using a normal hardware shop bolt that comes stock as 7.85mm! I have torqued this bolt so hard, I find it hard to believe that there is any movement at all! The...
Update on motor drag: Trek has done some testing and the supposed drag has not been "psycho-somatic". They are replacing the motor. Thank you Trek. Excited to ride the TQ motor the way it was designed to!
Lower shock bolt:
I have a nasty clack clack sound coming from my motor / lower shock...
Yea, early bike. If I put the assist very low, lets say 25% I start to feel that same “clamping down” sensation from the motor. I obviously can’t feel it at higher motor watts, but the question is whether I always have that 30-40watt drag down from the motor, I just cant feel it at higher watts...
It looks like I have 2 issues with my motor:
1. The one was Boost mode dropping off power, and @DBSwiss rightly posted that the latest firmware fixed that. It sure has!
2. The other still remains. If I turn the system completely off after I used it for a few minutes, the motor drag is...
Not quite. I definitely have drag, like the clutch is engaged.
Also, my motor runs hot, and then cuts the power. Today I climbed in max/boost mode around 900ft vert in 17mins, and the system cut the power to 50% of before, presumably because the motor is too hot. At that point the motor was...