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does the inner need ramping to match the outer?
Completely plain (what the teenagers would call "singlespeed") chain rings work fine as the inner ring. The chain is either lifted off or dropped onto it, unlike the outer which has the chain smashed into it sideways and is expected to take it from there
gbj_tester
Hmm annoying, a more general question does the inner need ramping to match the outer?
Ie could I get this and a 34 inner?
https://www.wiggle.co.uk/sram-red-22-cyclo-cross-chainset/?lang=en&curr=GBP&dest=1&sku=595429&kpid=595429&utm_source=google&utm_term=&utm_campaign=Shopping+-+All+Products&utm_medium=base&utm_content=mckv|sRR0OepqZ_dm|mcrid|295292317327|mkw||mmt||mrd|595429uk|mslid||&mkwid=sRR0OepqZ_dm&pcrid=295292317327&prd=595429uk&pgrid=58852352866&ptaid=pla-545940325834&gclid=EAIaIQobChMInOXG2sOJ4gIVDrXtCh1FQwPLEAQYCiABEgLFaPD_BwE