Molly Fin 5 – doodads

I noted in the frame and wheels post that a hub dynamo was an important element of the build. Having reliable lights makes cycling in low light conditions way safer; battery powered lights have the annoying Murphy’s Law habit of being fully discharged when you need them most. A dynamo can also charge a phone, a GPS cyclocomputer, battery packs, etc. I’d already purchased a Busch+Müller Eyc (rhymes with ‘bike’ I’m told) headlight and a tiny but powerful (love that LED technology!) taillight for the blue bike – they got redeployed on to Molly Fin. I wired in a Sinewave Revolution to take care of USB charging duties.


The hub and headlight. The silver thing is a pump.


Yes, I’m all about weird little grace notes.

The wee taillight got a significant upgrade courtesy of my son. He has *proud father voice* an collection of 3d scans of skulls. and scanned my taillight as well. Result? Skull taillight cover! Pure awesome.

Wiring up the bike.

A post shared by John P (@drhypercube) on


“Real” bicyclists look down their noses at kickstands, but for cargo bikes, they are a very useful addition. The Blackborow frame has a kickstand plate – good move, Salsa – with the mount point off-center, optimized for a 1-leg kickstand. The kickstand Salsa recommends seemed a little light-duty for me. I ended up going with a hella-stout Pletscher Optima Flex.


I think that’s about all I want to say about the build – it’s the riding that’s the reason for all this and Strava tells me I’ve put 300 miles on Molly Fin so far. I’ve been switching back and forth between her and the blue bike because I want to give my body time to get used to the different ergonomics.



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