• Thanks for all the replies.
    Yep, I ended up getting a front brake instead of rear.
    I don't know what the current cog is but, yep, I think I'll go and get a 48x19 fitted on the other side. Where would be the cheapest place to buy and fit it in London (central or east-ish), I wonder?

    Thanks again for all remarks. I do realise that there's no better solution than experience etc and that these things take time. I've been browsing past threads, too.

    Rather than just be a parasite with questions, I might as well add on an unconnected note that the Smart Superflash is awesome. I've a Dinotte rear light [which is unbelievably bright] but the Superflash is very, very impressive and given that it's about a sixth of the price is in my limited experience well worth getting. I don't understand why some people eschew having lights, but however, that's something for another thread I guess....

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