Bosch Active line clicks
- Thread starter DAJ
- Start date
There was a well-known clicking problem with the previous Bosch motor.
But the later version - yours - doesn't suffer from it, so I doubt it's that.
There is a knack to changing gear on an Alfine/Bosch ebike, particularly at higher assistance levels.
Rather than stopping pedalling, 'soft' pedalling changes works better.
But the later version - yours - doesn't suffer from it, so I doubt it's that.
There is a knack to changing gear on an Alfine/Bosch ebike, particularly at higher assistance levels.
Rather than stopping pedalling, 'soft' pedalling changes works better.
might be the plastic case or the motor bolts could be loose.
http://www.pedelecs.co.uk/forum/threads/this-creaking-is-driving-me-crazy-any-ideas.23436/
http://www.pedelecs.co.uk/forum/threads/this-creaking-is-driving-me-crazy-any-ideas.23436/
Having done quite a few more miles with the bike this is what I am sure of so far.
It occurs with the motor switched off, less obvious but still there when under load. It is more pronounced in Turbo under load. You feel it through the right hand crank and the "Click" seems to resonate in the plastic housing of the Bosch motor.
It is not restricted to during or just after a gear shift, and can repeatedly occur every few pedal strokes.
I have been turning up the cable tension, which seems to be improving things, but the yellow marks on the hub are no longer aligned!
It occurs with the motor switched off, less obvious but still there when under load. It is more pronounced in Turbo under load. You feel it through the right hand crank and the "Click" seems to resonate in the plastic housing of the Bosch motor.
It is not restricted to during or just after a gear shift, and can repeatedly occur every few pedal strokes.
I have been turning up the cable tension, which seems to be improving things, but the yellow marks on the hub are no longer aligned!
I believe the hub is slipping, the corresponding "shock" is felt at the other end of the chain - at the crank. it would appear to be not uncommon for the alignment marks to be not ideal and I am suspecting this is emphasized by the extra torque of the motor.
I will persevere with the hub adjustment until I have ruled it out or resolved it. Then it will have to be an ebike shop to assist as I can't do anything with the motor.
My first Nexus 8 hub (same internals as Alfine) was a bit rough at first, it then went on to develop a momentary loss of drive in 8th gear. The internals where replaced under warranty and it has done over 6000 miles without any issues now, it was also much smoother right from day one. It's never needed any cable adjustment since initial set-up.
Talk about a storm in a tea cup! Turned out to be the plastic crank wheel guard interfering with the chain. I can't explain how relieved I am it wasn't something more serious.
I failed to spot it and I do consider myself capable with bikes, but J E James in Rotherham did a sterling job in identifying it and refused to charge me for their time, bearing in mind I didn't buy the bike from them I consider that above & beyond. They have won my loyalty that is for sure.
The 7 mile journey home over numerous hills was an absolute joy as this time there was no click/clack to accompany me
I failed to spot it and I do consider myself capable with bikes, but J E James in Rotherham did a sterling job in identifying it and refused to charge me for their time, bearing in mind I didn't buy the bike from them I consider that above & beyond. They have won my loyalty that is for sure.
The 7 mile journey home over numerous hills was an absolute joy as this time there was no click/clack to accompany me
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