My wife and I liked the Giant Momentum line ... very similar to the Liv ... and had a rough time deciding between them and the Comos. I really like the IGHs but we want to travel with them when things clear up, and any bike shop can service deraillers. Seemed the Yamaha motors were stronger/lighter than the Brose too.
What specs have you found on the Yamaha motors vs Brose?
Sorry no specs, just seat of pants feeling of power assist being stronger on the Giant on a level trail.
Got it. The torque specs I've found put the Yamaha at 80Nm max and the Brose at 90Nm max, depending on motor model number. Here's some references that pop up when I Google motor torque by brand;
electrek.co
www.electricitybikes.com
Srephen, are you familiar with the US expression TMI ? It means Too Much Information. Engineers often suffer from it ....Got it. The torque specs I've found put the Yamaha at 80Nm max and the Brose at 90Nm max, depending on motor model number. Here's some references that pop up when I Google motor torque by brand;
Yamaha answers Brose and Bosch's new mid-drive e-bike motors with its own powerhouse
On the heels of big announcements for new motors and battery systems from both Bosch and Brose, Yamaha has just...
Brose S motors — ElectriCityBikes
The S motor line is at the very front of the big dog pack - dramatically peppier than most competing systems, with 15% more power than the already strong Brose T . Pushing 90nm of torque and 550 (560 for the Mag version) peak watts, and applied with the signature Brose smooth/natural feeling and lo
These graphs of torque output for the Brose motor are also available online;
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Bike gearing will certainly change how the bike feels.
Guilty as charged..
Sorry wrong name SerriaTim is who I was replying to.And if you weren't an engineer of some sort, you might of missed your calling.
Seems that our whole family is engineers; sons, daughter, wife, brother, daughter-in-law, ... even me. It's not uncommon to take on a math challenge after a family dinner....
I know, geeks, but somebody has to do it or nothing gets built!
And gearing certainly matters. Advantage of derailler over IGH is wider range available, of course. The Momentum was only a 7 speed vs 9 in the Como. But these are picky things, I am more rationalizing an emotional decision than really reasoning , I'm sure.
On engineering ... I wrote software for 20 years, my wife is a professor of accounting (even worse), my daughter just finished a PHD in civil engineering, and would often say "This is NOT a normal conversation " at supper. Yep, lots of TMI.
Mission Control should work fine and it is good software!
Thanks Stefan. I got the right name this time! The lbs where I live is in Amish country ... horse and buggy, and bikes are transportation not toys ... and they know nothing about smart phones or software ... a tool of the devil would be a typical reaction. When I look at Facebook I tend to agree.
Yeah, I knew that I probably shouldn't be getting into such a discussion with engineers. I'm just schooled as a lowly biologist/chemist so I don't even get to wear any of those special engineer hats!
