• Put the Rival cranks on the Dolan to check chainline, and have now re-spaced the rear fixed wheel to 46mm with little drama, save for the fact that the axle's shifted so one track nut doesn't have enough thread to engage. It will have to go on backwards (i.e. flange-outwards) until I find a lower-profile one...

    Not very aero

  • Oh, cartridge bearing! Sorry, I completely forgot about that. A nut without a captive washer will get you there.

    As long as you're not rolling on Marathon +, I wouldn't worry about tyres: you've got bigger potatoes to peel, ie position and pacing.

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