Volspeed tuning box for Bosch gen 4

[arTNC]

@JcoolMTB Can you share a few pics of the updated Purion display please?

I guess it's this one, right?

Bosch Purion 200 Display, 22.2mm (BRC3800), The smart system | eBay

The Purion 200 is a control unit and display in one which offers simple, ergonomic control of all ebike functions. It has a 1.6 inch color display with ideal readability thanks to optimum display resolution. Purion 200 can be extended with an additional display or the SmartphoneGrip...

www.ebay.com

I posted a thread about the different Bosch displays, and I admit to not understanding why our emtb's need all these bells and whistles which in some cases have caused the inability to run a tuner. I have that simplest Purion display, and once the parameters were set to max options for my preference, I can't see any reason to constantly go back and forth to the Bosch software But people are different and preferences differ, so I get that.

 

[dschae1]

My 2021 has this version of the Purion display. Of note, the chip I installed in Jan 2022 does not offer any boost capability like what you are describing, only that the previous speed limiter is moved out. I checked an there are no software upgrades to add it either. I'm happy though with the performance my Bosch motor delivers across the 4 boost modes though! 2,000+ miles since it was installed, no issues what so ever on a 2021 Trek Rail 7. I can get up to 34 MPH (54 KPH) with a good road downhill.

 

[arTNC]

My 2021 has this version of the Purion display. Of note, the chip I installed in Jan 2022 does not offer any boost capability like what you are describing, only that the previous speed limiter is moved out. I checked an there are no software upgrades to add it either. I'm happy though with the performance my Bosch motor delivers across the 4 boost modes though! 2,000+ miles since it was installed, no issues what so ever on a 2021 Trek Rail 7. I can get up to 34 MPH (54 KPH) with a good road downhill.

View attachment 140930

That's the same display I have on my Gen II Trek Rail 7, and I also have the VOLspeed unit. It has been flawless in operation and super simple...no countdown BS or other rituals you have to go through.

However, it's interesting that you say you're not realizing any other benefits other than the speed limit removal. Have you played with the dynamic mode options by using the "Walk" button as layed out in the manual? The alternative inputs are subtle but quite noticeable on an actual trail. I set mine to the most aggressive settings, but I'm a dirt motorcycle guy, so that's kind of where I'm happiest at in function.

 

[dschae1]

I have not tried the Walk button mods yet, wasn't aware this was something to look at. I'll do a search for the directions.
PS: I'm 64 now, but a "few" years back, I raced motocross (1980s to early - 1990s). I credit this to my interest in eMTB!

 

[arTNC]

I have not tried the Walk button mods yet, wasn't aware this was something to look at. I'll do a search for the directions.
PS: I'm 64 now, but a "few" years back, I raced motocross (1980s to early - 1990s). I credit this to my interest in eMTB! View attachment 140978

Somewhat similar background here. I'm even older at 72, but I'm a very fortunate 72 who still rides dirt motorcycles and mountain bikes...my dirt motor background was the enduro circuit. No doubt being a dirt motor guy made the transition to MTB's and now EMTB's very logical.

I see you're from TX also. Our off road club just put on the Concho Enduro on the TX circuit. Here's a shot from the property last month at Texana Ranch during prep for the enduro...on both venues of travel out there.

 

[dschae1]

What year/model of Rail is that? The shock looks very different than mine with the external spring. Lots of other things look different to me too. I have this 2021 Trek Rail 7

 

[arTNC]

dschael, it's a Gen II...the year after yours. Yes, you're right about the suspension on my Rail in the pic. OEM fork was a RS Domain, and the rear shock was the same as yours. I swapped to a coil Marz Bomber fork and a Fox DH-X2 rear coil shock. I prefer coil suspension most all the time. May come from my dirt motorcycle background.

 

[JcoolMTB]

@JcoolMTB Can you share a few pics of the updated Purion display please?

I still have the old Purion. I was talking about having modes with more assistance and they are kind of between in the stock modes. I can switch tuning ON/OFF. So I can have modes like: ECO(60%), ECO+(80%), TOUR(120%), TOUR+(150%),EMTB(210%), EMTB+(230%), TURBO(300%) and TURBO+(310%). The tuning makes huge improvement in cadence. With the tuning OFF I'm usually in 70-80 cadence which I don't like. With the tuning ON I'm able to do faster cadence in 80-85 range and it feels great.

 

[lisalis]

Why the enviolo automatiq doesnt works with the tuning systems ??

 

[teerex]

Hi guys, I have just bought a Haibike Xduro All MTN 5 with Bosch motor 2021 and i want to derestict it using the volspeed V3, Ive read loads of posts on here and in most of the videos i’ve seen it looks very straightforward to install however on my bike i can’t see how you can get to the electrical connections to fit one? Any help greatly appreciated.

Update.

To get to the wiring on this model of bike/motor, the procedure is as follows
Remove bottom cover 6 x 4mm allen bots, remove right hand crank arm, 10mm Allen key followed by an 8 mm allen key, then you need a crank extractor to remove the crank arm. Remove the chain guard 4mm allen key, remove the front sprocket, 43mm isis bottom bracket tool is needed to unscrew the lock ring this is a clockwise turn to unscrew.
Once you have the front sprocket off this gives you access to the 5mm allen bolt Silver one on the bottom right side, of the motor remove the left one also, now remove the upper fasteners on the plastic trim which houses the battery connection one either side and these are a 2 part fastener, 4mm allen key on the outside large flat blade screwdriver on the inside. Now this plastic cover slides downwards and off the bottom of the frame. Lastly remove the 2 torx screws size 20 now revealed one either side to remove the plastic trim which houses the electrical connectors. Install the tuning chip and put back together in reverse.
A bit of a lengthy process on this bike which was very annoying.

Dave.
View attachment 56384

Hi, no problem getting this done without removing crank arm and sprocket on my 2021 All Mtn 3.
I could access the screw through the sprocket. Didn't have to remove the screw, just loosen it fully.

 

[Londontrader82]

Hi All,

New Bosch E Bike Connect update out version 5.5.5 - Has anyupdate updated and able to confirm if safe to do so with the Volspeed 4 non-smart? Many thanks

 

[Booshan]

Hi all, I need a fix. the chain keeps slipping on the 12th sprocket only!!! I have tried fine tuning, checked b screw and hanger. Should I change the cassette? I have completed around 500mile and it was fine for the first 300. I use the bike for commuting and rarely use any other gears as it's fairly flat. Any help appreciated.

 

[RustyMTB]

Hi all, I need a fix. the chain keeps slipping on the 12th sprocket only!!! I have tried fine tuning, checked b screw and hanger. Should I change the cassette? I have completed around 500mile and it was fine for the first 300. I use the bike for commuting and rarely use any other gears as it's fairly flat. Any help appreciated.

You're in the wrong thread for this but if you've done all your adjustments, B screw, limit screws etc then the sprocket is probably worn. The higer sprockets wear disproportionatel;y as you spend more time in them & with fewer teeth, they spend more time under load. If it's a SRAM cassette, then you'll need to replace the whole thing. Shimano cassettes have replaceable higher sprockets but the cost often amounts to over 50% of a new cassette unless you take a chance with Ali Express or somewhere similar.

 

[Booshan]

You're in the wrong thread for this but if you've done all your adjustments, B screw, limit screws etc then the sprocket is probably worn. The higer sprockets wear disproportionatel;y as you spend more time in them & with fewer teeth, they spend more time under load. If it's a SRAM cassette, then you'll need to replace the whole thing. Shimano cassettes have replaceable higher sprockets but the cost often amounts to over 50% of a new cassette unless you take a chance with Ali Express or somewhere similar.