New Chain Slipping.

[David Shellman]

I'll add I replaced the crank & chain wheel around a year ago (cost £80), so
I suppose it makes sense to replace the cassette at a cost of £30 rather than wear out the chain wheel again, and as I already have a new chain then that's the way to go.

As I said, I just needed other opinions to confirm my hunch it was a worn cassette. The lifespan of my previous cassettes have always outlasted the chains by threefold, hence my curiosity.

 

[Yellow Saddle]

Shimano chain tool checks to 0.5% and does it properly by measuring increase in pitch / discounting roller wear

The error is too large because the measuring distanc e is too small (sample too small).

 

[Yellow Saddle]

I'll add I replaced the crank & chain wheel around a year ago (cost £80), so
I suppose it makes sense to replace the cassette at a cost of £30 rather than wear out the chain wheel again, and as I already have a new chain then that's the way to go.

As I said, I just needed other opinions to confirm my hunch it was a worn cassette. The lifespan of my previous cassettes have always outlasted the chains by threefold, hence my curiosity.

Did you not read the bit where I said that time does not matter? I'll add now, that cost does not matter either. Stick to what matters.

Your hunch is wrong. It is not a worn cassette, but a worn sprocket.

 

[katiewlx]

I'll add I replaced the crank & chain wheel around a year ago (cost £80), so
I suppose it makes sense to replace the cassette at a cost of £30 rather than wear out the chain wheel again, and as I already have a new chain then that's the way to go.

As I said, I just needed other opinions to confirm my hunch it was a worn cassette. The lifespan of my previous cassettes have always outlasted the chains by threefold, hence my curiosity.

well Id just leave it a week or two to see if it settles down first, as the thing that confuses me I guess is that its the highest gear that slips, now that could be because its got the most pressure on it, but you wouldnt expect that gear to wear that much, because you wouldnt be riding in it all the time, youd expect mid range gears to wear the worst first as thats where you tend to sit gearing wise for most of the ride, and then be the ones more prone to slipping when you apply more pressure through the pedals, ie going up hill.