kalkhoff warranty

[Joe]

With most consumer goods for warranty work the goods have to be as purchased, not modified/altered at all. I presume that as 50 cycles are remocing the original sprocket for a size requested by some customers this would not be an issue if a fault occured. what do you think?

 

[stokepa31]

As they have agreed to carry out the works I would very much doubt it. Would be woth double checking prior to puchase though. I will be.

Paul

 

[flecc]

Its' th Panasonic motor that's primarily at issue here, and in the whole of this decade of the Lafree Twist series, this has never been an issue. Panasonic themselves supply three difference drive sprockets for the latest motor, doing a similar thing.
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[Joe]

I agree flecc. But is there anything at all in the notion that the increase in force on the system afforded by the sprocket change could cause problems in the long run? running at 18mph not 15mph is an extra 20%.

How did the lafree fair in terms of hub wear if the sprocket was changed for extra speed?

 

[flecc]

It wasn't a problem Joe. Shimano don't specify chainwheel/sprocket ratio limits as others do, so they aren't in a position to claim abuse later. But in any case, where manufacturers do give limits, they aren't stringent, being at relationships more likely to exist in triple chainwheel derailleur systems. A Shlumpff mountain drive bottom bracket with a strong rider could be a problem on any hub gear though, while circumventing the chainwheel/sprocket ratio limits manufacturers set. Something none of them appear to have thought of.

I did wreck one SRAM P5 core on the Lafree after four years of exceptionally tough use, towing heavy loads in my very hilly area:

.

 

[Joe]

I think you got your moneys worth though