Interesting. I did not think the quill could take a 55. But even that is a far cry from my 2.6” tires.
Regarding the dynamo - I got a nice deal on the wheels & envisioned some possible nighttime adventures in addition to standard MTB duties. So far it’s been exclusively MTB - nothing at night.
Sent from my iPhone

On Dec 3, 2024, at 9:40 PM, Jason Fuller <jtf.ful...@gmail.com> wrote:

Richard - regarding the weight of dynamo, a friend did a pretty comprehensive gram-counting exercise on dynamo vs. battery lights and found that dynamo is about 170g heavier on average, if I'm remembering correctly.  It assumes though that you're carrying battery lights if you don't have dynamo, which is obviously not always the case unless you're a pack-rat like I am.  Battery lights themselves are heavier than dynamo lights, so that partially offsets the mass of the hub.  I love the Blue Lug Koma lights; minimal and not bright enough to light the way at night but super light (and can be unscrewed leaving only the ~2g base in place). This is what I'd do on a gram-counting build to maintain practicality. 

Cliffhangers are beautiful rims that build up so wonderfully but good gosh, they are heavy. Quill are significantly lighter while maintaining some extra width (not as much).  Crust makes some really light-for-their-width options but I've seen too many crack at the eyelets for me to buy them, honestly. A weight-sensitive fatter tire build for me would be Quill rims and RH 55mm knobby tires in Extralight casing, both 650B and 700c options available. 



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