Gen 2 v Gen 3

[Beekeeper]

The gen 3 is lower powered (65nm) than the gen 2 CX(75nm) and used mainly on hybrid bikes. Anyone know what gives the CX more torque? I’m assuming they are both 250w motors. Is it just the gears inside which are different?

 

[Zimmerframe]

Wasn't gen 2 for mtb and gen 3 for other bikes ?

Or do you mean a different why ?

 

[Beekeeper]

Wasn't gen 2 for mtb and gen 3 for other bikes ?

Or do you mean a different why ?

yeah gen 2 has the small chainring and used on mountain bikes. More powerful than the larger chainring gen 3 motor.

 

[Beekeeper]

Just interested to know if the motor itself Inside is larger in the gen 2 cx or if they both have the same motor and the gears are different.

 

[Bearing Man]

Just interested to know if the motor itself Inside is larger in the gen 2 cx or if they both have the same motor and the gears are different.

The Gen 2 and Gen 3 are completely different internally, with all different components, gears and bearings. The Gen 3 motors were produced specifically for road bikes. But the Bosch linerage is below.
Gen 1 Bosch "Classic" Line 50Nm (Mostly fitted to road bikes)
Gen 2 Active Line 50Nm (Mostly fitted to road bikes)
Gen 2 Performance Line 63Nm (fitted to road bikes and some early EMTB's)
Gen 2 Performance Line CX 75Nm Fitted to all Bosch powered EMTB's from 2014 to 2019
Gen 3 Active Line 40Nm Road bike motor for flat city riding and long battery life (Same motor, just fed less power)
Gen 3 Active Line Plus 50Nm Road bike motor for urban riding with small hills (Same motor, little more power but still better battery consumption)
Gen 3 Performance Line 65Nm Road bike motor for touring i.e. longer higher hills (Same motor, little more power, still better battery range than the CX)
Gen 4 Performance Line CX 85Nm Mountain bike motor

Then of course you have the Speed Line and Cargo Line motors. But essentially, all the motors are designed specifically around a certain job and battery consumption seems to be the key.

 

[Beekeeper]

The Gen 2 and Gen 3 are completely different internally, with all different components, gears and bearings. The Gen 3 motors were produced specifically for road bikes. But the Bosch linerage is below.
Gen 1 Bosch "Classic" Line 50Nm (Mostly fitted to road bikes)
Gen 2 Active Line 50Nm (Mostly fitted to road bikes)
Gen 2 Performance Line 63Nm (fitted to road bikes and some early EMTB's)
Gen 2 Performance Line CX 75Nm Fitted to all Bosch powered EMTB's from 2014 to 2019
Gen 3 Active Line 40Nm Road bike motor for flat city riding and long battery life (Same motor, just fed less power)
Gen 3 Active Line Plus 50Nm Road bike motor for urban riding with small hills (Same motor, little more power but still better battery consumption)
Gen 3 Performance Line 65Nm Road bike motor for touring i.e. longer higher hills (Same motor, little more power, still better battery range than the CX)
Gen 4 Performance Line CX 85Nm Mountain bike motor

Then of course you have the Speed Line and Cargo Line motors. But essentially, all the motors are designed specifically around a certain job and battery consumption seems to be the key.

Very helpful summary. Thanks