Anyone ever replaced a CX Gen 2 for the new Gen 4
- Thread starter EdTy
- Start date
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- bosch gen 2 gen 4 performance cx
Alavin
New Member
Impressive work, @Cobee !
Isn't it correct, that a gen4 motor could be configured for derailleur or internal gear hub shifting? From what I've read those differ in how the motor detects that shifting is occurring and in how the motor lowers power that moment.
If that is correct, then is it an issue if you mount an IGH configured motor to a derailleur bike or vice versa? Can you know which one the motor is from the diagnostic report? Can this setting be changed by workshop? So many questions, bear with me. have an IGH bike with a 2016 Performance Line gen2 motor. I would like to put a gen4 motor to it.
Regards,
Janne
Isn't it correct, that a gen4 motor could be configured for derailleur or internal gear hub shifting? From what I've read those differ in how the motor detects that shifting is occurring and in how the motor lowers power that moment.
If that is correct, then is it an issue if you mount an IGH configured motor to a derailleur bike or vice versa? Can you know which one the motor is from the diagnostic report? Can this setting be changed by workshop? So many questions, bear with me. have an IGH bike with a 2016 Performance Line gen2 motor. I would like to put a gen4 motor to it.
Regards,
Janne
Hi Arild,
I hope your conversion on my adapters will well.
Show us your progress. I’am curious. Good luck.
Hi Janne,
Unfortunately I haven’t idea how work autoshifting. My conversion done with non-smart gen4 motor. Is the easiest way - battery and controller is compatible.
If you need adapter with bolts please let me know.
Paweł.
arildl
New Member
Hi, I will - the adapter was bolt on - but I have some issues to modify the original egg-formed cover used on 2017-2019 (by Cube, Trek, Riese&Müller and others) bikes, so I struggle with some esthetic details . After my vacation I will try to make a 3d-printed cover to make the conversion better looking. But as said - your adapters was bolt on - very easy to mount, and I can not see any better way to modify it to make it easier to adopt the egg-cover, so I will work more with the cover to make it fit better on my Riese&Muller Delite (2017).
Alavin
New Member
Thank you for your reply. I will have to think is the engine swap something I am able to do at the moment.
The most obvious issue is where to buy a replacement motor. I see that they are available in central Europe but not so much here in Finland. I wonder if they are willing to send abroad.
The second, although minor, issue is that my bike also has the egg shaped cover that I would need to fix.
Alavin
New Member
Hi,
I'd be interested to know how the cover design turns out. Please keep us updated!
Regards,
Janne
Alavin
New Member
Does chainline change? I mean is the distance of the front sprocket different with gen 4 vs. gen2?
Hi. Is the same. But gen4 chainring is bigger of course.
Alavin
New Member
Excellent! Thank you!
Alavin
New Member
Hi! It is a city bike, Lapierre Overvolt Eden Park with a 2016 Performance Line (non-CX) motor and a Enviolo/Nuvinci N380 hub. It has an eggshell shaped motor cover so perhaps Trek Powerfly covers do not fit.What bike you have ?
If someone have a Trek Powerfly 9.7 or 9.9 I have a complete fitting covers for these bikes. For Other bikes frames, covers need to be fitting individually. Sometimes original are correct sometimes not.
Have a nice day
Thanks anyway!
Last edited:
Alavin
New Member
Alavin
New Member
This is my bike with original motor, cranks removed.
And Gen 4 installed.
Cables are not routed properly, yet. Right cover fits mostly but left needs to be modified. Or a 3D model designed. For now I think I'll just cut the left cover so that it fits and add some Sikaflex/sealant/adhesive if needed.
I will be able to test ride the bike tomorrow if I can find sprockets.
Anyway. Impressive adapter kit you have provided, @Cobee !
And Gen 4 installed.
Cables are not routed properly, yet. Right cover fits mostly but left needs to be modified. Or a 3D model designed. For now I think I'll just cut the left cover so that it fits and add some Sikaflex/sealant/adhesive if needed.
I will be able to test ride the bike tomorrow if I can find sprockets.
Anyway. Impressive adapter kit you have provided, @Cobee !
Last edited:
Alavin
New Member
Finally managed to get the bike running. It is good. Pedaling past 25 km/h is not so hard any more. Added torque can be felt when going uphill. I need to do something about the covers. Maybe tomorrow.
Edit: Having 12 v lights is a nice bonus. Now I can get a headlamp with high beam.
Edit: Having 12 v lights is a nice bonus. Now I can get a headlamp with high beam.
Alavin
New Member
Cover fixed. It turned out better than I had expected.
Chainring side gave a surprise. There was not enough clearance between the the cover and the chainring bolts. So I cut the case and covered the holes with duct tape for now. Later I will 3D print black disc with a hole for crank and glue it to the case from the inside. Also same for the logo hole. Perhaps a spider with some offset would have worked instead. But it would have changed chainline and perhaps that could've been a problem.
Chainring side gave a surprise. There was not enough clearance between the the cover and the chainring bolts. So I cut the case and covered the holes with duct tape for now. Later I will 3D print black disc with a hole for crank and glue it to the case from the inside. Also same for the logo hole. Perhaps a spider with some offset would have worked instead. But it would have changed chainline and perhaps that could've been a problem.
Last edited:
Bit for unscrew original bolts for adapters.
www.hoffmann-group.com
Please be carefully with threads in alu zinc material of housing motor. Not screw more than 9-10Nm. Is easy to broke this threads.
Bit do śrub Torx Plus®, 1/4 cala E 6,3 z otworem, Torx Plus® profil IPR: 25IPR | Hoffmann Group Perschmann
Kup Bit do śrub Torx Plus®, 1/4 cala E 6,3 z otworem, Torx Plus® profil IPR: 25IPR w eShop Hoffmann Group Perschmann: ✓ Osobiste doradztwo ✓ Polecane produkty
www.hoffmann-group.com
Please be carefully with threads in alu zinc material of housing motor. Not screw more than 9-10Nm. Is easy to broke this threads.
Alavin
New Member
Thanks for providing hex bolts in the kit! They are much easier to work with than the odd Bosch Torx Plus screws. I did not have the correct torx bit but was still luckily able to remove the Bosch screws.Bit for unscrew original bolts for adapters.
Bit do śrub Torx Plus®, 1/4 cala E 6,3 z otworem, Torx Plus® profil IPR: 25IPR | Hoffmann Group Perschmann
Kup Bit do śrub Torx Plus®, 1/4 cala E 6,3 z otworem, Torx Plus® profil IPR: 25IPR w eShop Hoffmann Group Perschmann: ✓ Osobiste doradztwo ✓ Polecane produkty
Please be carefully with threads in alu zinc material of housing motor. Not screw more than 9-10Nm. Is easy to broke this threads.
At first I thought I need two of the original screws as one of the plates is thinner:
I thought I would damage the motor as the hex bolts were longer than the original screws. But it turned out they fit so in the end I removed these two Bosch screws and replaced them with the ones you provided in the kit.
Is good to use this anti seize product between zinc bolts and magnesium threads.
www.henkel-adhesives.com
LOCTITE® LB 8008 C5-A
LOCTITE LB 8008 C5-A to jedyny środek zapobiegający zacieraniu w opakowaniu z pędzelkiem z cząsteczkami miedzi/grafitu zawieszonymi w wysokiej jakości środku smarnym. Posiada aprobatę NLGI klasy 0
www.henkel-adhesives.com
leftybenxtr
New Member
Just perfect 
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