There was a lot of discussion about this on the CTC forums; there's a lot out there if you search, but there's this monster thread in particular: https://forum.cyclinguk.org/viewtopic.php?f=5&t=64432
IIRC the TL;DR is that the A8 is mostly found to be more durable/reliable than the A11, and that in grotty UK weather conditions, both may well benefit from better lubrication than the factory setup provides.
IIRC the TL;DR is that the A8 is mostly found to be more durable/reliable than the A11
I concur. 11 not worth the extra ££. Gears slipping all the time. The A8s have been fine.
@dubkev started
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There was a lot of discussion about this on the CTC forums; there's a lot out there if you search, but there's this monster thread in particular: https://forum.cyclinguk.org/viewtopic.php?f=5&t=64432
IIRC the TL;DR is that the A8 is mostly found to be more durable/reliable than the A11, and that in grotty UK weather conditions, both may well benefit from better lubrication than the factory setup provides.