The chain came off between gears on the little rise past the culvert, where the road tilts up just enough to make you shift, and I shifted, and the front derailleur pushed the chain a hair too far, and it dropped off the inside of the small ring and went slack.

There is a particular death to it. One second you are pushing against the road and the road is pushing back, an honest argument, and the next second the pedals spin free and there is nothing under your feet at all. The legs keep going out of momentum, cranking air, and the bike coasts and slows and you put a foot down because there is nothing else to do. The chain hangs off the ring in a black loop, drooping into the gap between the frame and the crank, gone somewhere it is not supposed to be.

I walked the bike off the road onto the gravel shoulder. This is manners you keep even when there is no one to keep them for. The road was empty in both directions, a straight gray line running off to heat-shimmer at either end, the ditch beside it full of last week’s rain and this week’s cattails. Nobody was coming. Nobody had been coming for twenty minutes. But you get off the road anyway, because the road is the road, and you fix a bike on the shoulder.

I laid it down on its side in the gravel. You could stand it and reach in, keep your hands cleaner, but laying it down is easier and I had already decided this was going to be a dirty job, so I let it be one from the start. Down in the weeds the mosquitoes found me inside of a breath. They had been waiting in the ditch grass for exactly this, a warm still thing crouched at their level, and they came up off the water and got to work on the back of my neck and the strip of ankle above the sock while I got to work on the chain.

The chain, off the ring, is just a greasy loop of small machinery, and there is no way to handle it clean. I pinched the top run and lifted and walked it toward the ring, and the grease came off on my fingertips first, then the pads, then down into the prints where soap never fully reaches, that deep gray you carry for two days no matter how you scrub. I hooked the chain over the top teeth of the small ring and held it there and reached back with the other hand to turn the crank slow, and the chain climbed on tooth by tooth, the way it is supposed to, the rollers dropping into the valleys with a small oily click I felt more than heard. Half a turn and it seated. It always looks impossible for a second and then it is just done.

Somewhere in the reaching, the loose lower run of the chain swung and painted my calf. I felt it happen and did not stop, because stopping would not un-paint it. Two black half-moons, a chainring’s worth of tooth marks stamped in grease across the muscle, the exact arc of the thing I’d been fixing printed on the leg that had been driving it. It is a mark every rider gets. You cannot fix a dropped chain roadside and come away clean. The bike signs you.

I stood up in a cloud of mosquitoes and picked the bike up out of the gravel and turned the pedals once by hand to check it. The chain ran true, ring to cog, the little click of it healthy again. Small stones had pressed into the grease on the pedal and on the black loop of chain, and they’d stay there a mile or two before shaking loose. I wiped my fingers on the one clean patch of the gravel, which did nothing, then on the underside of my shirt hem, which did a little, and gave up.

The whole thing took two minutes. That is the size of it. A dropped chain is not a story, not an ordeal, nothing you’d mention. Nobody saw it. The road stayed empty the entire time, both directions, the heat-shimmer never resolving into a car. There is no version of this that gets told at a table later, because nothing happened except that a machine failed in a small ordinary way and I crouched in the weeds and fixed it and got bitten for my trouble and went on. This is most of what being outside actually is. The photo would have been the bike against the sunset. The photo would have missed the whole thing.

I got back on and pushed off, and the chain took the load and held, the road tilting up again past the crouch spot, and I shifted more carefully this time, easing it, watching the front end, babying the exact fault that had just cost me a calf.

The grease dried into the leg hair as I rode and stopped being wet and started being a stain. It itched a little in the sun, mixed with the mosquito welts already coming up beside it, and by the time I hit the pavement it had set into the skin as two dark crescents that would still be there when I got in the shower and mostly there when I got out.