Change An E-Mountain Bike Chainring On A Bosch Motor | EMBN How To
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- Опубліковано 21 лип 2024
- Ensuring that you have the right size chainring on your E-bike for the type of riding that you do is essential. Steve discusses how to change e-mountain bike chainrings, and the reasons why your motor might benefit from a different size.
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For flatter terrain your motor won’t have to work as hard to help maintain 25kph when paired with a larger chainring, however if you ride in a particularly hilly area a smaller chainring will not only mean faster accelerations but also better energy efficiency.
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Great show Steve and very simply explained to detail good stuff mate.
Good info Steve. Thumbs up.
Good to know! Thanks for that!
Thanks a lot, very informative.
Great explanation.
I would love a similar video regarding the Yamaha PW-SE motor.
How easy is it to find chainrings on online shops for that motor? Are the chainrings independent of the Crank?
What about replacing a single chainring by a double chainring? Is it easy to place the derailleur? For example in a haibike SDURO?
Good video ⭐️⭐️⭐️⭐️⭐️ here from denmark
Very informative video, thank you.
My KTM Macina Kapoho LT271 (8-speed) came with a 16 tooth SRAM X-SYNC sprocket.
I upgraded to a 18 tooth sprocket which is the largest available for the SRAM X-SYNC series however upon looking on the Internet I have come across a 20 tooth sprocket (KMC) but it comes in two variants, either 1/8 or 11/128.
Not sure whether to try one of these larger sprockets out and most importantly i'm unsure which varient I should get.
Can you offer any advice?? Thanks 😊
Hi, how do you deal with offset? The one you changed should be 5mm: I've tried with an FSA 2.5mm offset and I often loose the chain
Very good vid thanks. The lock ring on mine was impossible to shift by conventional means. Had to get an electric impact driver (a beast of a tool!) to crack it.
Mmm lecy impact dr...good idea for loosening stubborn threads...can u recommend a model/brand
Hi Pete, I have a Bosch Performance Line CX, and a few days ago it began to make a noise, mostly on emtb o turbo mode but only at climbing.... Similar to a coffee grinder. How can I know the kind of bearings or kit I need to replace? Thanks a lot
Thanks man
do you know of any oval chainring for Bosh?
2:22 just cus it has a clutch doesn't to mean it can lockout, but some clutches have that feature like Sram & Sensah.
Hey, what wrench would you recommend to remove the little chainguide wheel?
I would like to know how to tell which sprocket tool is needed for my 2020 CX that came with my Moterra Neo. Not all of the sprocket tools for the Bosch motors are the same and each one is about 25 quid apiece, and I have one now as a paperweight. Thx.
Love it thank you...
Great video Steve, nicely explained. Even though I don't have an E-bike 😂
But I'm gathering all the knowledge of bikes possible! And at the same time I get to watch these amazing videos of your!
does this not put more snap pressure on the chain thanks
It's interesting that you don't mention Miranda, because they are the company that makes all this Bosch sprocket wizardry that allows you to change the chainline and whatnot. In addition to chainrings and chainguards, Miranda also manufactures Bosch-compatible spiders which allow the use of general-purpose sprockets. Another thing that's *critical* to mention is that Bosch drives can also refuse to work with certain chainrings as part of their anti-tampering mechanics... the exact nature of this is difficult to predict, but there are plenty of reports by people who replaced the chainring that their motor refuses to function.
Hi, How would I change the 38th chainring of a Haibike Hardseven 2022 for a 34-tooth chainring?
How many Nm needs the sprocket to be perfectly adjusted?. Thanks
the one thing I'm worried about is the offset spacing (3:37) compared to the original, which seems to have inside teeth near the drive unit and sprocket spaced some number of millimeters away, then more space, then the outer guard. I'm not sure why miranda has so many offset combinations
I'm thinking this actually just has to do with the cassette height in the back and to more closely match the middle of the gears
what tools needed for xduro nduro 8.0?
Wish there were more details on the products used in this video. Finding this stuff is so difficult in the US.
hi, i have a 10.0 after 1550 km replaced ( the sram casette ) is extreme expensive ( 480 euro ) the chain plus front sprocket , is ther a other brand ( shimano ? ) that will fit the bike ? today checked it @ 2500 km it looks dat its worn out again ( ps the first 1500 km 80 % was on turbo - now i ride in al the modes ,
you install it on a gen 4, i am breaking my head here... is gen 3 and 4 the same? or is gen 2 and 3 the same? i have a performance line cx gen 3 and i dont know what to buy
So.. I've just bought a 14t sprocket for my Haibike.... fitted it..... it is slipping under the chain.... it ain't working and I'm not sure what to do... put new chain on..... but as I pedal....crank/sprocket rotates... and chain doesn't.... sprocket slips about 2 or 3 teeth each rotation..... I can't understand what bus going wrong......
Muy buena Bici me encanta
Onya, Steve. Great content as usual.
Also check that your chain lenght plays nice with the new chainring. I didn't catch any word on that topic!
Especially going to a bigger chainring on a full suspension bike you may break stuff if you run out of chain
Just changed my front sprocket to 14 with the after market chain guard the chain looks worryingly close to the plastic motor casing with out the inside guard......like the the factory one ? I’ll see how it goes !!
Changed it back to standard it needs a spacer or a different sprocket!!
Hi 👋 how to order this backet pls
Is Speedo affected ?
I have a question. The front ring you took off has a 5mm offset. The one you replaced with doesn’t. Is that a problem?
I'm not OP but yes, that is definitely a problem, though less so if you have a rear derailleur. It would be critical on an in-gear hub though. Luckily, there are different varieties of these front rings with the internal protection being offered in several different offsets - convenient if you want to adjust the chainline of your bike a little. Maximum is 20mm though :)
I'm trying this on a 2018 Haibike AllMtn 9.0 and the chainring is too close to the motor. where do i find a 14 tooth chainring with the correct offset for this model??????
did you ever figure this out? I'm having a similar issue and will need to offset towards the pedal
Hi, do I need to change the chain after that upgrade? Because the sprocket size is being bigger!
If you have a full suspesion bike, test if you have enough chain when you are in the lightest gear with rear shock bottomed out (or removed)
Can you do a chainring removal on a whyte ebike 🙏👍
Can you update this episode to CX4 et al please?
specifically Bosch CX Gen4 with a 38t chainring and 11 gears Hyperglide/Linkglide / 12 gears Hyperglide+ thank you
I did this modification on a Bosch CX, but i had to reprogram the motor to get optimized assistance.
Really? Tell us more please! We were not aware that anything like that needed doing
Each Bosch motor is set for the bike set-up with cassette size and chainring size input etc. I'm not aware this can be changed with the usual interface, maybe Kevin knows different.
Bosch doesn’t provide software update, i had to ask the manufacturer of the bike if he was ok to reprogram the motor. Once they were ok, my bike shop had to make an appointment with Lapierre so they could upload the update online. My Bike shop couldn’t make the update by themselves. I guess software modifications are prohibited to bike shops to prevent de-restriction of the 25km/h limit.
Brooklyn Hooper Same peak power, yes. But not at the same time. Anyway, if you play too much with the ratio cassette / chainring, you will get an error 531. Assistance shuts down.
Brooklyn Hooper you are right, mate, i also wish « it should » be simple.
Nice.......err, how to on a Specialized levo?
Julian Bradley Have a look at the "how to remove a brose motor" video.
Tom Fuller thanx man!
I have 36 tooth sprocket on my cx motor. How come that?
Newer bikes have regular sized chain rings
I must admit I do like that channel , especially when host sticking crank back on with PRECISION OF 20Nm IN RIGHT ARM !!!!!! (Just look 4:21 ) Please some people might know YOU NEED TORQ WRENCH ! If you do not do that properly fixing will cost you a lot. But nice video like always.
Do they do a bigger than 22 tooth
I'm just upgrading my Kube Kathmandu gen 4 from 38 to 42 tooth. Waiting for the mechanic to finish right now.
Before I start any maintance, I clean the bike first!
Horrible dirty the bike and the dirt was still inside.
Nice but need a shimano one :)
Well that is going to be a challenge on my Focus Jam2 with the battery placed in the downtube and needing the motor to be removed to access it.
But doesn't the Focus have a Shimano motor? This video is for Bosch Performance line motors only.
Fair enough, I just figured removing the battery was a general safety tip for all ebikes when accessing the chainring. Thanks for the reply.
@@embn and Yamaha ST, How change chainring Peter?
Umm isn't it anti clockwise to loosen clockwise to tighten
not if is a left hand thread its not.
Wasn't it a Yamaha driving up the hill?
Just bought 52teeth sprocket lmao
why does bosch use those funny small chainrings?
There are a better guy to inclusive open and repair all the Emotors and everithyng meticulous SAM PILGRIM From the videos that i have see him instaling stuff and repairing HE is the guy Dont look nowhere else !!!
you must be fun at parties..
The front sprocket whit chain guard is ugly and a mud trap.
I changed it by a sram without it, prettier and you dont have all the crap who gets stuck in it.
I agree, it's a mess and mine is typically full of mud.
Bullseye
He ingnore the imortant o-ring - this is worse 😖👎
Lets Plug another Sponsor this week. too specific, thumbs down.