Lugging a Motor, Why it's Bad

[Jeremy McCreary]

I just checked again, I'm over 2,000mi. on a 1,000 watt mid drive and some of the links are less than .5% and some are slightly over. I guess the chain does not wear evenly. I think I can stretch it (excuse the pun) to 3,000mi.

Why accelerate the wear on your cassette, pulleys, and chainring for the cost of a new chain — especially with a high-powered mid-drive in the mix?

 

[DDBB]

Well, first of all, I'm no expert. Secondly, I've read in numerous places that a 9 speed chain should be replaced when it reaches .75. Since I'm not there yet, how am I accelerating the wear on my cassette? Third, I have a new cassette and chain ring ready to install if needed. Are you saying if any one link goes past .5 the chain needs replaced? If replacing at .5 saves the cassette I'll replace the chain now.

 

[Gionnirocket]

Well, first of all, I'm no expert. Secondly, I've read in numerous places that a 9 speed chain should be replaced when it reaches .75. Since I'm not there yet, how am I accelerating the wear on my cassette? Third, I have a new cassette and chain ring ready to install if needed. Are you saying if any one link goes past .5 the chain needs replaced? If replacing at .5 saves the cassette I'll replace the chain now.

Any wear on the chain is wearing the sprockets more... but 0.5 it's probably negligible and as you state the recommended wear is 0.75 so I'm comfortable going with the established recommendation.
ymmv

 

[Jeremy McCreary]

Well, first of all, I'm no expert. Secondly, I've read in numerous places that a 9 speed chain should be replaced when it reaches .75. Since I'm not there yet, how am I accelerating the wear on my cassette? Third, I have a new cassette and chain ring ready to install if needed. Are you saying if any one link goes past .5 the chain needs replaced? If replacing at .5 saves the cassette I'll replace the chain now.

My apologies. You're right about the 0.75" limit. I shouldn't read and write half-asleep.

 

[PedalUma]

I know a guy who brags that he only needs one pair of boxers for a four day trip. He goes front, then back, then inside out, front and back. Personally I would rather change it before it 'needs' changing.

 

[Gionnirocket]

Heh!!!
I know a guy who bio_waxes his ass and it will never get dirty or need shaving and will make the new boxers last.