Software change for shorter crank?

[jbrescia]

Hello all. I have changed out the cranks on both my niner RLT e9 RDO and my wife's trek verve + to 165mm. I never told my LBS I did this. Do they need to know this when updating Bosch software. I have a gen 4 Bosch performance line speed with a purion display and my wife has a gen 3 active line with a purion display. Thanks!

 

[fooferdoggie]

no no change needed. I think there used to be one for a chainring change on the gen 4 but when I had mine changed my mechanic found no setting for the chainring size so many they dropped that.

 

[wildtrak]

Setting it to shorter cranks in the software gives more torque with less human input.
That is to compensate the less torque you can put on shorter cranks.

For the chainring (gear ratio), the manufacturer can change that, but that is not needed. This will only adjust the maximum speed for the walk assist.

 

[jbrescia]

Setting it to shorter cranks in the software gives more torque with less human input.
That is to compensate the less torque you can put on shorter cranks.

For the chainring (gear ratio), the manufacturer can change that, but that is not needed. This will only adjust the maximum speed for the walk assist.

So there is a software setting that I should get changed. Thank you.

 

[BikerG]

I changed mine from the stock 170’s to 155’s. With my 29” inseam, I’m able to spin much more efficiently, and fewer pedal strikes on rocky trails.

 

[shanesnr]

There was a error pop up on the intuitiva when i swapped my belt drive sproket for a smaller one but with a phone call the shop assured me its no biggie and they'll wipe it when next in.just check eitherways,cx performance line intuitiva display.

 

[watsonwallace]

Hello all. I have changed out the cranks on both my niner RLT e9 RDO and my wife's trek verve + to 165mm. I never told my LBS I did this. Do they need to know this when updating Bosch software. I have a gen 4 Bosch performance line speed with a purion display and my wife has a gen 3 active line with a purion display. Thanks!

Hello all. I have changed out the cranks on both my niner RLT e9 RDO and my wife's trek verve + to 165mm. I never told my LBS I did this. Do they need to know this when updating Bosch software. I have a gen 4 Bosch performance line speed with a purion display and my wife has a gen 3 active line with a purion display.

Hello all. I have changed out the cranks on both my niner RLT e9 RDO and my wife's trek verve + to 165mm. I never told my LBS I did this. Do they need to know this when updating Bosch software. I have a gen 4 Bosch performance line speed with a purion display and my wife has a gen 3 active line with a purion display.

Hello all. I have changed out the cranks on both my niner RLT e9 RDO and my wife's trek verve + to 165mm. I never told my LBS I did this. Do they need to know this when updating Bosch software. I have a gen 4 Bosch performance line speed with a purion display and my wife has a gen 3 active line with a purion display. Adjusting technical configurations can be tricky, especially when you want to avoid errors or compatibility issues. In my own experience, I found that reaching out to Metrofax customer service and checking their user feedback really helped me understand how to handle updates safely. Seeing other users’ experiences gave me confidence in the process and clarified what steps I needed to take. Overall, having that guidance made the whole software adjustment much less stressful and more straightforward.

Most folks say it's not super critical if you're happy with how it feels now (plenty run 165mm without issues), but if you notice it feeling a tad less punchy at low cadences or want max efficiency, swing by your LBS next time you're due for a service/update and ask them to flip that setting — takes like 2 minutes with the diagnostic tool.