Electric Bike Motor Test: The Best Motors for Electric MTBs - Bosch vs. Brose
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- เผยแพร่เมื่อ 24 ก.ย. 2020
- It's an electric bike motor showdown in our electric bike motor test. We're breaking down two of the best motors for electric MTBs: The Bosch Performance CX Gen 4 and the Brose S Mag. We're testing these two Class 1 (20 MPH) electric bike motors side by side to see which is better for eMTB. It's Bosch vs Brose. You don't want to miss this one!
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We only deal with the best electric bike motors, but even within the best e-bike motors, there has to be one that is king. Brose and Bosch have duked it out for years trying to earn that top spot. We'll look at a number of different factors so that you can decide if you're buying a Brose S Mag or a Bosch Gen 4 CX.
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Brose! Quiet and smooth. The most natural pedal feel.
Bosch baby! The sound compared to the Brose doesn’t bother me at all. Just give me that Bosch power!
Motor noise is never really an issue for me either! Still a tough choice!
Very helpful overview! Thanks for another great review.
Glad it was helpful!
"Doing their job, or whatever.." Killer video!!
Thanks Will!
3800 miles, and 500K feet vertical on my Bosch motor, so far this season. No problems, no worries, no complaints. Bosch all the way. 🤘
Now those are some impressive stats!
@@FlyRidesUSA thanks. Love the vids.
I've done 5k easy on mine no probs at all go on bosch
@@urbancyclist4280 Nice. I've now passed 4500 miles. Still going strong.
Fun and informative video. Can't really go wrong, right?!
Deanna Lofquist I’d say that about sums it up!
Could you ride a motor cx bosch upsteep hills everyday for a year and the motor would still go strong ?
What trail is this? Looks like fun easy trail to try out?
IHAVE A BULLS SESTREAM WITH BROSE AND I HAVE A BULLS COPPERHEAD WITH THE BOSCH THE BOSCH BLOWS IT AWAY BY A LOT.
Never owned a Brose but test rode the two motors up a steep little offroad grass hill near my dealer and picked the Bosch on a Trek Rail just because it comes on so strong immediately while the Brose on the Levo I tried felt like you had to get going a bit before it kicked in. However after owning my Trek with the Bosch for a few months now I find that top level of assist is just too much too quick to use in any technical terrain so I have to kick it down to the 2nd highest level in order to maintain control. It's only useful on long straighter climbs or fireroads or street of course. Makes me want to try the Brose on the same technical sections to compare some day. Also on the newer Levo's at least you can adjust the power you get in each level of the Brose. Bosch will offer that soon enough but the latest model only lets you adjust the first 2 levels which isn't very useful. Still I do love the Bosch power when its safe to use it. Hopefully Brose has fixed its belt failure problems with their improved components for 2022.
Informative video. Which is more reliable and which company offers better support and warranty service in the US?
Warranty support is definitely about equal for these guys. Both are very good. Reliability really can depend on how a specific company tunes their Brose motor. Generally, Brose is reliable. Bosch being a totally closed system is always reliable.
Tried the both, went with Brose. It just seemed more refined, like a next gen version of Bosch. Just as much if not more power, but smoother delivery makes it easier to work with pedaling in technical terrain, the low noise is a nice plus. Both are good though for sure.
Nice! Definitely agree. Both are top motors and anyone who's looking should test ride both first.
What's the weight of the corresponding systems? Are the batteries any different?
The Weights are: Brose 6.39 and Bosch 6.3. The Biggest battery on a Bosch system is currently 625 wh and the Brose can have a battery pretty much as big as the battery manufacturer can make since they're more of an open system.
Who is the fastest rider at your store, and why is it Max?
Definitely a hard choice. The first time I rode a brose was the most I've ever felt like a biker again. Fantastic systems 👍
Two of the best for sure!
Emtb mode is class
We go with what's most economical. And years of riding Bosch, Brose, and Shimano, have leaned us to never substitute Yamaha's PW-X2 motor. Sure, if ya consider yourself a perfectionist, and pick-on every little thing "You," find wrong, that's okay by us. We have ridden the PW-X2 motor for an entire twelve months, straight through Winter & temperatures at 25F, and the motor is perfect. Still using the original equipped battery, with 6700 miles on both rigs, the only equipment need replacing thus far has been the tires, cassette & crankset, and once replacing the nylon gear wheel(which only saves a ounce or two!). Why is it no company makes e-bike motors utilizing Scandium or Thermoplastic, ceramic or even graphene? Since buyers can afford five-$10K for a e-bike, buyers should not be concerned of a extra couple grand for innovative material. Aluminum material (and carbon frames), are just dinosaurs.
Kelly's seems to do that...
Is the S-mag just a name, or is it also a technical designation?
Great question! The "Mag" stands for Magnesium which is the casing on this motor. This is significantly more lightweight than the aluminum casing featured on the traditional Brose S. The letter S is a technical designation. The S is their highest torque motor.
The S stands for Sport ;)
Whats the cost difference?
Hey Rhys, the motors aren't sold separately from bikes. So it all depends on how much the bike costs.
Brose will fail, broken belt for sure.Had one. Bosch has no belt, that means more noise but it will work. Remeber that , when Brose fails 50km from home.
Speaking of Brose. Any chance Rotwild will ever bring their bikes to the US?
No word, but you'll hear it here first if they do!
Bosch screwed many of its buyers when it didn't offer the Software update for years before 2020. I now hate my 2019 Cube stereo because of Bosch and their unwillingness to increase my NM's. I am shopping around for another bike but do not feel I could trust Bosch ever again reliability or not. :-( I wonder if the people who cite Brose problems damage them from misuse? Brose uses cogged belts and Bosch uses nylon gears, both have limitations.
It's deffinitley user dependent...I have a friend who has reached 5k km on a 2019 turbo levo...no issues...well, after they covered the whole which took all the foresr in the motor case...but that was Speclzd design issue, not Brose...
How long will the brose last for though. I have had bosch all the way from 2016 models and covered over 4000 miles on each with no problems at all .
We've had customers use both motors for 1000s of miles, but I'd agree that Bosch is still the more heralded motor when it comes to use over the course of 5-7 years.
@@FlyRidesUSA thought specialised were having major problems wit them motors at low miliage brose
I ride my trekking Brose since 10500 mls w/o issues, all seasons 10 F to 113 F. I'm still very satisfied with its realibility, smoothness and silence.
But I saw a YT from England, 'Performance Line Bearings Brose Motor Upgrade' supposing Brose is sensitiv to water. So best clean it carefully preventing water from bearings. Perhaps this is an explanation because true eMTB riders love to clean their bikes regulary that I don't.
every go here for more details
what about that rattling noise at the Bosch? not a word over there ...
Yeah that's because it's not really a thing. I think it was reported in one video in an early release on a Bosch eMTB. We've never had an issue with it.
@@FlyRidesUSA The problem is still there.
@@Nicpain81 Hm yeah we really haven't heard it reported, but if you're having the issue on your Bosch bike, I'd recommend taking it into the shop because it shouldn't be happening.
@@FlyRidesUSA th-cam.com/video/M9xnw_vOla8/w-d-xo.html
I have the gen 4 and it's solid performing. Never heard any rattling.
I think this is a better comparasion, the link bellow, plus 2 extra motors in the game. The problem with Brose it`s the reability, Brose motors had huge problems, compared with Bosch wich is german, which says alot IMO :)
th-cam.com/video/M9xnw_vOla8/w-d-xo.html
Brose is also German...
The Brose will fail -after a few hundred miles - the Bosch will last ;)
hector is saying that the bosch is more powerful... but it doesn't seem to be from your test here. The Brose has a higher nM rating in fact. So, why is he calling bosch more powerful?? Did I miss something?
A lot of it comes down to the way the different softwares are designed. In the end, the torque ratings refer to the highest torque in optimal settings, so they're really only important if you can get the motor in that optimal setting. It's all a matter of preference though.
I bought the 160sl,just had the 85nm update but it feels.less.powerful and more noisey..strange
There are many different upgrades for the Bosch motor. Make certain you got the highest level. 85nm with eboost.
I think ebike industries goes the wrong direction like the Auto .Who has more power isn't as important as efficiency,weight,noise to biker,or else is like riding a motor bike on the Trail.!Also sooner or later regulation will catch up with the high power ebike which endangering. other non broker.
Yep. That's why we like these companies. They're generally more focused on efficiency and long term use than other eBike motor companies. After all, you still do want it to feel like you're riding a bike!
Brose all the way .)
Peace
Especially with recent update! Money!
@@FlyRidesUSA not so . was in the shop today talking about the Sachs motor with the owner and he pointed to a bike he was working on and said he just downloaded the "fix" that brose claims and STILL the motor would not work . the owner and mechanic said he is furious with companies that are using brose because he has had to refund the purchase price and or tell the owner it can't be fixed . Brose has NOT fixed their motor and belt problems as of nov. 19 2020.
@@siriosstar4789 Hm. Yeah we haven't seen any Brose motors in since the firmware update. Can't speak for everyone of course, but that has been our experience.
@@FlyRidesUSA Well , that's a good sign . hopefully they get it sorted out because when it runs properly i have heard nothing but rave reviews . i live in germany and the Germans are very loyal to their own companies but only if the product and service are top notch.
Nox cycles that i mentioned in another post has added the new Sachs RS motor ( also a german motor ) into to their line up and it all occurred around the time that brose belts and motors were failing .
These things can get blown out of proportion on the net but when i talk to local mechanics in germany they are less than enthusiastic . i like the bosch cx very much but since they put tuning
detection into their software , myself and others have become dismayed by such extreme tactics .
bafang better than both
Sachs RS
BOSH not BASH