The bar indicators on Bosch Intuvia

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JackStraw

Active Member
Its the drive assistance indicator, its a guide as to how much power is being applied at any time. Have a look a it when you are riding flat, it's probably low as you may not need much help, when you go uphill it could rise as you need more assistance.
I understand the basics of it but wonder what is the intelligence behind it. I think it takes into account the speed and how much force is put on the pedals. Depending on the mode it provides more or less assistance. By looking at it I still don't fully understand it.
I reckon there isn't a single standard how pedal assistance works and different vendors do it differently but in the case of Bosch it is a black box, right?
 

wiggydiggy

Legendary Member
I understand the basics of it but wonder what is the intelligence behind it. I think it takes into account the speed and how much force is put on the pedals. Depending on the mode it provides more or less assistance. By looking at it I still don't fully understand it.
I reckon there isn't a single standard how pedal assistance works and different vendors do it differently but in the case of Bosch it is a black box, right?

Ah I don't know the specifics, all I know is when I go up a steep hill the bar goes up to indicate it's helping me more. If I up the assistance level (say from ECO to Tour) then the bar stays the same but the level of assistance goes up. I do know if I peddle more slowly in a higher gear the assistance bar can go down but not by much.
 

Dadam

Über Member
Location
SW Leeds
My favourite mode is eMTB, because it reacts to pedal pressure very quickly so feels very natural, except you feel like you've suddenly grown bionic legs! Going up a 20% rocky slope at a rate of knots does make you grin.

Performance Line CX but I only have the basic Purion display
 

wiggydiggy

Legendary Member
My favourite mode is eMTB, because it reacts to pedal pressure very quickly so feels very natural, except you feel like you've suddenly grown bionic legs! Going up a 20% rocky slope at a rate of knots does make you grin.

Performance Line CX but I only have the basic Purion display

I was going to upgrade to a Purion 200, the one which is controls and display in one, but the bike shop wanted £150 for it and since they're not chasing me to tell me they have them in stock, I think I'll leave it.
 
I was going to upgrade to a Purion 200, the one which is controls and display in one, but the bike shop wanted £150 for it and since they're not chasing me to tell me they have them in stock, I think I'll leave it.

The LBS might not be trying to rip you off there
Bosch are notorious for charging a lot for genuine bits ans stuff

I took my bike to the LBS a while ago because of some minor non-ebike type problem
when I got there I also told him that the ebike system was not working but not to bother with that because I had noticed that the magnet on the back wheel was missing

He checked the price anyway and told me - it was non trivial
I just got a basic one off the WWW and that works fine
if it was the detector it would have been a fair bit more expensive!!
 
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