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A comment on Shimano Forces Hammerhead to Remove All Di2 Related Functionality From Karoo. Parent comment

Re:Shimano Forces Hammerhead to Remove All Di2 Related Funct... by wl on Friday June 03, 2022 @08:29AM (#31607329)
Di2 is mostly popular among the performance cycling set who likes to go fast. The ~5% drivetrain power loss you'd get from a dynamo isn't attractive in that market. Also, Di2 requires charging every couple of months. It just isn't worth it.

I have seen some randonneuring bikes with a dynamo with USB charging for topping up the bike computer and the like. Commuting and utility bikes tend to just use the dynamo for lights.

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Re:Shimano Forces Hammerhead to Remove All Di2 Related Funct... by kuschku on Friday June 03, 2022 @09:53AM (#31608296)
That’s a market that’s entirely foreign to me, I use my bicycle entirely for commuting, buying groceries, etc so I’ve got a hub dynamo powering the lights.

I’m honestly surprised that there’s no super-low-power hub dynamo for this segment, but if it’s all people using bicycles for planned trips, they can take charging into account when planning trips.

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