On Tuesday, March 19, 2024 at 8:10:14 PM UTC-5 Bicycle Belle Ding Ding! 
wrote:

 Can 48 mm tires do a 15-17 mph road ride pace? 

Yes. I have Rene Herse 48mm tires on my Breadwinner G-Road, Gravel King 
(smooth) 48mm on West Coast Sam, and Ultradynamico 48mm tires on East Coast 
Sam, and 15-17mph is pretty much my normal pace on all of them. The Gravel 
Kings require only a bit more effort than the RH tires. The Ultradynamico 
tires require noticeably more effort, but it's not like they're boat 
anchors. I've done a couple of 20mph rides on the Breadwinner. My Rivendell 
Road recently went from 26 to 32mm (though they measure 29 on the skinny 
rims) tires. It's easier to ride at 20mph on that bike, but only marginally 
so. 
 

What are people using to charge phones on long rides away from home?

For my Breadwinner I spent a lot of time thinking about and designing a 
flexible generator-light-charging setup, and I'm very happy with the 
result. The coaxial wire from the hub ends in a quick-connector behind the 
fork crown. Normally my headlight (Supernova E3 pro 2) plugs into that, and 
the tail light plugs into the headlight. If I want to charge something, I 
have a Sinewave Revolution that can plug into the generator instead of the 
headlight. That leaves me without lights, but I also can plug the lights 
into a USB power source. Supernova says the lights won't run off a battery, 
but the 5v from the battery is more than enough. They aren't at their full 
brightness, but they are plenty bright for most conditions. I prefer having 
a headlight with a properly shaped beam (sorry, Beacon), and you can't 
really generate enough watts to run both a light and charge a phone, 
anyway. And besides, reasonably lightweight USB power sources are cheap and 
easy. The one I have is only a few ounces and can charge my phone 3x. And I 
can recharge it from my generator hub if I want. In fact, theoretically I 
can connect both the generator and the lights to the battery, and it will 
charge the battery as the battery is powering the lights. I haven't tested 
that to see if the generator makes enough power to run the lights and still 
add to the battery charge level.

Ted Durant
Milwaukee, WI USA

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