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but couldn't find a lever recommendation
Any common road lever, according to prejudice. Obvs. Shimano has a compatibility chart which says you have to use the matching Sora/Tiagra/105 STIs, but the build in my house which has them is on Campag Ergos. As Brommers says, TRP RRL is a popular choice for people who have either good or bad reasons to reject the SRAM S500/S900 brake levers.
Is there an approved mini v/lever combo? I saw you recommend the Sora/Tiagra mini v's but couldn't find a lever recommendation. Will be using bar end shifters