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Finally got a chance to ride the BMC Road machine Amp X with TQ50 drive (thanks to all those on this forum that helped along the way). This is my first ebike and was not sure what to expect. 42 mile/2600ft elevation test ride today confirmed what many of you said. The motor is silent, the...

“OTA Bootloader Support… prerequisite for enabling future OTA update capabilities for HPR40, HPR50, and HPR60 systems.” Yes, it appears that legacy TQ motors will need a firmware update via service dongle prior to being able to receive OTA updates...

Some TQ News.... TQ Behind-the-Scenes / Sensor Architecture — Velomotion published a factory tour this week clarifying TQ's unconventional sensor approach: no torque sensor in the traditional sense. Instead, strain gauges are mounted on the BB axle bearings, with a real-time algorithm that...

I saw on another forum that OTA was scheduled for release end of April or early May so timing seems right. Suspect an App update will be coming soon to provide the functionality.

Thanks for posting. Looks amazing. Having just purchased (and unfortunately yet to ride) a Team Machine Amp with TQ50 I wonder is the lighter weight worth the significantly higher price.. Hope someday I can answer that question.

Well a couple of people have confirmed they can ride just on the range extender without main battery. Hopefully one of the brands will offer a lightweight road ebike with ability to remove the main battery without removing the motor. I would love to be able fly with my bike the way I can with...

If you do would love to hear your impression. I have a BMC Roadmachine AmpX with the TQ50. Would be fun to see how much different the TQ40 feels on essentially the same bike.

No doubt there are locations where 1500W eMTB's are needed but that kind of power has to take a toll on trail quality and tranquility...

Interesting question? When riding with no assist (not in level I,II,III) does the motor power down or does it continue to provide enough assist to achieve neutral torque to overcome internal mechanical losses? If not then when riding with no assist then I assume the rider would feel some drag...

Slightly off topic but does anyone know if the TQ50 can operate just off the range extender without the main battery installed? Thinking ahead to cycling trips to Europe.. I hear people are flying with range extenders in carry on as they meet the max Ahr limit so wondering if could remove the...

Does the motor mechanically disconnect or at cutoff does software reduce motor torque to achieve a neutral torque state? By neutral torque I mean it adds enough torque to overcome internal resistance of the motor (rider feels no drag when pedaling) but not so much to add meaningful assistance...

Thanks for the update. I also have the BMC Amp X. I wonder if you could use the unused shift signal for the front derailleur (Amp X is 1X drive train, no front derailleur) to cycle through assist levels similar to using the one button on the display. While upgrading from Rival to Force would be...

My mistake, I was confused by the different listings available.

I just purchased BMC Amp X with TQ50. No dealer near me so was thinking of buying a service dongle. Was also thinking of upgrading the Rival shifters to the AXS shifter with the hood buttons. Questions. I see there are different versions of the service dongle (V1, V2) . What is needed for...

I assume a week or so for delivery but I will be traveling in April so it might be May before I get in any riding time....

Quick note of thanks to all of you on this thread that helped me in the process of deciding if I should take the plunge and get an e-Road bike and which bike to start with! Its been an educational process! Deciding between an ultra lightweight TQ40 based bike or lightweight TQ50 bike was a hard...

Here is the drive train spec for the Amp X Two, Amp X One is same gearing, just step up in SRAM groupset.

Great review. What's your opinion of the BMC ICS MTT redshift stem? Marketing hype or does it noticeably reduce road buzz and hand /forearm fatigue. Also is there room for spacers to fine tune the stack?

@stompandgo; thanks for the input, remind me which bike you ride?

That is inspiring! I hope I am doing the same. Thanks