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• #2
If you want to do it on the cheap and aren't fussed about looks then grab yourself an older Stronglight 99bis/80/100/200 chainset with an 86mm BCD. (Sugino and Sakae also did the same BCD just not as common).
You can fit anything down to a 28T, I still use my 99bis and have used it with 10 speed no problems whatsoever. You can also fit them up as a triple.Alternately you can squeeze a 33T ring onto a bog std 110mm compact, not ideal but gets you an extra 3% lower gear compared to a 34t
Shot in the dark but before the credit card takes the hit anyone got? Needs to work with 11sp 105
172.5
48-32 or lower
11 Speed
68 Threaded BB
https://www.tritoncycles.co.uk/components-c9/chainsets-cranks-c70/alba-m30-dm-chainset-p18177/s54200?utm_source=google&utm_medium=cpc&utm_term=praxis-works-alba-m30-dm-chainset-size-170mm-48-32-size-170mm-48-32-pr-dm-a170-4832&utm_campaign=product%2Blisting%2Bads&cid=GBP&gclid=EAIaIQobChMIq-mgm_Dv1QIVTmcZCh3FLQNREAQYCCABEgIFivD_BwE