Shimano Steps E8000 chainring

[Beatn1K]

Hi,
as per the title - I am looking replace my chainring and want a steel 36T that fits the E8000
Can anyone suggest where I might be able to find stock available ?
I am a little dismayed that they dont appear to be widely available - or am I missing something ?

cheers

 

[luna87824]

Hi,
as per the title - I am looking replace my chainring and want a steel 36T that fits the E8000
Can anyone suggest where I might be able to find stock available ?
I am a little dismayed that they dont appear to be widely available - or am I missing something ?

cheers

So are you having a hard time hitting 24 kph with the stock chainring?

 

[Beatn1K]

Buy Shimano Steps CRE70-12-B Chainring 36 Teeth 12V DM - Bla

Order the Shimano Steps CRE70-12-B Chainring 36 Teeth 12V DM - Bl

hollandbikeshop.com

 

[hix]

Guys,

please could you recommend me a 32t chainring for my E8000?

I got over 5000km on the original (34t) one, now I'm gonna replace the whole drivetrain (NX 11sp -> XT 12 speed with all-metal 6100 casette), so I'll get 10t smallest rear gear instead of original 11t but I dont need longer gear ratio..

thanks!

 

[Singletrackmind]

Has anyone tried this chainring with a Sram Eagle chain?

 

[BikeTrailsAndWaggingTails]

Hi,
as per the title - I am looking replace my chainring and want a steel 36T that fits the E8000
Can anyone suggest where I might be able to find stock available ?
I am a little dismayed that they dont appear to be widely available - or am I missing something ?

cheers

Every bike is different and a 36T chainring may fit your bike.

On my e-mtb I swapped out the original Shimano 34T chainring with a Wolf Tooth 104 BCD "A" 34T since some of the teeth were rounding off after 5 months of use. I recently just swapped it out again (2 months ago) to the 36T Wolf Tooth 104 BCD "A" for more speed.

On my e-mtb, the 34T clearance between the chainstay and the chainring is 6.86mm. With the 36T, the clearance is 3.64mm. In these pics, I have the chainrings facing away from the motor to show the "34T" and "36T" markings but I run the chainring reverse (label and markings facing the motor). I run it reverse since the back side of the chainring has grooves for the nuts to help center it on the spider. BTW, if the chainring isn't perfectly centered on the spider, the motor will start to make a creaking/rattling sound after about 10 miles.

The 36T also has the same amount of battery drain as the 34T. At least for my firmware version (5.8.8 aka 4.3.2), the Shimano system automatically recognizes the chainring difference and updates itself accordingly. However, with my current firmware, the system is seeing it as a 38T chainring. With the 34T chainring, it sees it as 34T. Also, no error codes with the 36T chainring.

On my Shimano e-mtb, I prefer the 36T chainring since it matches my riding style a lot better. On top of that, I've finally started to us the 46T cog on my cassette more often now. With the 34T chainring, I seldomly had to shift to the lowest 46T cog.

But if you're trying to go faster than 18 mph, installing a 36T chainring isn't going to help especially if you're e-mtb is using firmware version 4.7.0 or newer. The newer firmware works hard to restrict your speed to 18 mph. What you need to do is downgrade the firmware to version 5.8.8 (aka 4.3.2). If you wanna downgrade the firmware, you'll need Shimano SM-PCE02 and follow these instructions:

http://www.emax-tuning.com/Shimano-Firmware-Downgrade-English-Version_2_0.pdf

Just to be clear, when I say "downgrade the firmware" I really mean "upgrade the firmware". The Shimano E Steps desktop software does not allow you to downgrade to an older firmware, so you have to trick the software by renaming the older firmware file to a higher number than what's currently installed on your e-mtb (ie: 4.3.2 rename to 5.8.8). If this doesn't make sense, just click on that emax-tuning pdf link above and follow the steps.

Before I downgraded to firmware version 5.8.8, I was running version 4.7.1 and my max speed was restricted to 18 mph. I tried the wheel sensor/magnet hack but that didn't work. I bought the STUnlocker mobile app but the motor still restricted my speed to 18 mph no matter how much I max out the settings on the app. For the price of a SpeedBox, I just bought the Shimano SM-PCE02 instead and downgraded the firmware. Now all the features on the STUnlocker app is working 100%. My cruising speed in Eco mode is 18 mph. In Trail and Boost modes, my cruising speed is 25 mph. With this setup, the fastest I've gone downhill on my local singletrack is 46.7 mph and average about 36.2 mph. Going up hill, I average about 13 mph.

 

[franciscoasismm]

Every bike is different and a 36T chainring may fit your bike.

On my e-mtb I swapped out the original Shimano 34T chainring with a Wolf Tooth 104 BCD "A" 34T since some of the teeth were rounding off after 5 months of use. I recently just swapped it out again (2 months ago) to the 36T Wolf Tooth 104 BCD "A" for more speed.
View attachment 42729

On my e-mtb, the 34T clearance between the chainstay and the chainring is 6.86mm. With the 36T, the clearance is 3.64mm. In these pics, I have the chainrings facing away from the motor to show the "34T" and "36T" markings but I run the chainring reverse (label and markings facing the motor). I run it reverse since the back side of the chainring has grooves for the nuts to help center it on the spider. BTW, if the chainring isn't perfectly centered on the spider, the motor will start to make a creaking/rattling sound after about 10 miles.
View attachment 42730
View attachment 42735

The 36T also has the same amount of battery drain as the 34T. At least for my firmware version (5.8.8 aka 4.3.2), the Shimano system automatically recognizes the chainring difference and updates itself accordingly. However, with my current firmware, the system is seeing it as a 38T chainring. With the 34T chainring, it sees it as 34T. Also, no error codes with the 36T chainring.
View attachment 42731
View attachment 42732
View attachment 42733
View attachment 42734

On my Shimano e-mtb, I prefer the 36T chainring since it matches my riding style a lot better. On top of that, I've finally started to us the 46T cog on my cassette more often now. With the 34T chainring, I seldomly had to shift to the lowest 46T cog.

But if you're trying to go faster than 18 mph, installing a 36T chainring isn't going to help especially if you're e-mtb is using firmware version 4.7.0 or newer. The newer firmware works hard to restrict your speed to 18 mph. What you need to do is downgrade the firmware to version 5.8.8 (aka 4.3.2). If you wanna downgrade the firmware, you'll need Shimano SM-PCE02 and follow these instructions:

http://www.emax-tuning.com/Shimano-Firmware-Downgrade-English-Version_2_0.pdf

Just to be clear, when I say "downgrade the firmware" I really mean "upgrade the firmware". The Shimano E Steps desktop software does not allow you to downgrade to an older firmware, so you have to trick the software by renaming the older firmware file to a higher number than what's currently installed on your e-mtb (ie: 4.3.2 rename to 5.8.8). If this doesn't make sense, just click on that emax-tuning pdf link above and follow the steps.

Before I downgraded to firmware version 5.8.8, I was running version 4.7.1 and my max speed was restricted to 18 mph. I tried the wheel sensor/magnet hack but that didn't work. I bought the STUnlocker mobile app but the motor still restricted my speed to 18 mph no matter how much I max out the settings on the app. For the price of a SpeedBox, I just bought the Shimano SM-PCE02 instead and downgraded the firmware. Now all the features on the STUnlocker app is working 100%. My cruising speed in Eco mode is 18 mph. In Trail and Boost modes, my cruising speed is 25 mph. With this setup, the fastest I've gone downhill on my local singletrack is 46.7 mph and average about 36.2 mph. Going up hill, I average about 13 mph.

Hello, good morning. I have a new DUE8000 that is set up 38 T the Chainring. I can put a 34 T on it, or I'll get an error. I have etuning app installed but I don't dare to touch the size of the Chainring for fear that I will get an E010 error. Thank you and Merry Christmas