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  • I need to find all the aero gains in the world, for next season.

    Is there a single ring setup that actually works?
    Rear derailleur, those ceramic speed things, worth it?
    Which waxed chain is best?

    All the gains, so I don’t need to bother training!

  • Similarly, I'd like a recipe for a good wax solution for race days if anyone has done some experimenting...

  • Is there a single ring setup that actually works?

    All of them work fine if you use a single sprocket too.

  • Any chainguide should sort chain retention. I'm still using an old FD but will get something slicker at some point.

    Ceramic speed are ~£400 for about 2 watts - definitely better seeing @xavierdisley if your budget is limited. There are cheaper options that will get you most of the benefits of CeramicSpeed - I think the biggest gains are larger jockey wheels, not ceramic bearings.

    Waxed chains, dunno, but FrictionFacts site would probably tell you.

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