• i only use the XD/XDR drivers to get 11spd cassettes such as the E13 ones with wider ratios

    Ha, I run a bailout cassette on my 303's as it was cheaper than switching out the Zipp xdr driver!

    Indeed it seems I can't run an xdr driver on these. Some strange compatibility issues explained on Road.cc
    I'd only ever be running these 12 speed.
    It seems that a Microspline driver is compatible with this non-boost version though. All the Microspline cassettes are 51t monsters. If only there was confirmation on what standard 12 speed Dura Ace is going to use...

    It pains me but no xdr is probably a deal breaker for me :(

    Edit - anyone have any inclination if 12 speed DA will use Microspline? I had assumed it would but not certain

  • Shimnao do a 12 Speed 10-45 XTR cassette that is microspline

    Yeah this could be an option but probably a bit too much of a compromise. I have a complete axs groupset ready to go. Would potentially mean messing about mixing and matching teeth profiles, flat top chain blah blah blah.
    Not to mention I have a perfectly good set of gravel wheels that weigh close to half of these Spengles!

    I want these wheels for the ire they will provoke in other riders more than anything tbh

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