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  • Thanks! The rationale behind compact geo in general is that the frame is both stiffer (while exposing more seatpost which can flex to give a smoother ride*) and lighter due to less tubing being used. For me there's a beauty in form that follows function and so build all my personal bikes like this.

    Re.the chainring: my boss has been storing it for over 10 years waiting for the right candidate to come along...

    *although moot here as a. the track is pretty smooth and b. its a 31.6mm Ø Thomson inline

  • Many thanks for those aspects, very helpful

    I just sent that exact chainring to Berlin to a „Jan“ so thought that might have been a nice coincidence (but apparently its not ;-))

    As its a 2x chainring, is it safe to be ridden on track with the teeth being optimised for shifting to the smaller chainring?

  • Haha yeah would have been funny! The Dura Ace ring won't see much use - it's a 54 and I generally ride use 53 or 56 - sits handsomely in the rotation though ;)

    re: the cranks - they're used/vintage that have been polished up and anodized

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