How do you replace the BB on the Bosch Performanceline CX?

[Jon Porter]

After 8 months the bottom bracket is starting to make grinding noises and there's movement (in the wrong direction) on the crank arms of my Cube Hybrid Reaction Pro 500.

The shop where I purchased the bike have told me the BB isn't covered by the warranty so I'm trying to find out how much of a 'job' it is to do the work myself. (Although I have asked the shop to re-consider their position too)

Anyone got any advice or experience in what needs to be done, tools required and what the cost is for the BB etc?

Many thanks
Jon

 

[Gubbins]

As far as i am aware and going by previous posts the BB is an integral part of the motor which carries a two year warranty.

 

[Doomanic]

The shop is talking rubbish; as Gubbins says, the motor has a two year warranty. Time to get medieval on their arses.

 

[soundwave]

hahaha the bike has no bb its called a motor r they that fkn stupid or what go get em

 

[Fat Rat]

All of the above
Its time to read them the riot act
Idiots

 

[Gubbins]

I an guessing this is a bicycle shop that has recently started selling ebikes but hasn't bothered to retrain their staff in what they are selling..

 

[soundwave]

the question is would you let a shop like that even fit a new motor!

 

[Jon Porter]

Thanks people, the bike shop is a reputable one that has been on board with electric bikes for some time. I'll get back in contact with them and if no joy I'll get in contact directly with Cube I guess.

 

[Blackbird]

The wearing out of the driveside bearing is a well documented one caused by ingress of water and or dirt into the bearing. There is an updated seal available. And yes, covered by warranty, bosch exchanges the entire motor for that but the bearing can be changed when out of warranty.

 

[Trevormonty]

The wearing out of the driveside bearing is a well documented one caused by ingress of water and or dirt into the bearing. There is an updated seal available. And yes, covered by warranty, bosch exchanges the entire motor for that but the bearing can be changed when out of warranty.

Some forum members have changed bearing on out of warranty motors, the ones thst posted had no problems.

Only odd shop will replace bearing most swap motor for factory refurbished one, very expensive. Motor replacement is Bosch policy, no opening motor.

 

[Fat Rat]

Classic