Long story short - I replaced my girlfriends tires and I didn't bolt the right nut/washer tight enough and it fell off mid ride - I now have no idea where I could find a replacement.

Without taking it into a bikeshop, anything else i can do?

Bike: Save Up to 60% Off Windsor Fixie Singlespeed Bikes - Clockwork

PS - It was a nut with a built in washer.

Thanks

Measure the axle to see if it is 9 or 10mm in diameter. Order appropriate track nuts online.

Or , if you don't trust yourself with a ruler or calipers, just order both sizes. How expensive can it be?

If it's the rear wheel, then it's 10mm. The front is 9mm. In a pinch you can pick up a 9mm or 10mm hex nut in a hardware store, and use a separate steel flat washer.

Dude, just get off your ass and go to a bike shop.


Not always. Cheapo wheelsets like Pure Fix, etc. often use 10mm for both.

The bike in question should have a 9mm front/10mm rear though.

How's the girlfriend gonna trust you to fix it yourself if her wheel fell off mid ride?

Seriously. That's why they exist...to solve problems just like this one.

"I ran out of food in my belly. Without going to get food from a grocery store or a restaurant, anything else i can do?"

order take out

Interesting. This had never occured to me. I just checked my SE Draft, and the front axle nut is indeed 10mm. Of course it is a cheap nut w/o a built-in floating washer like the OP's, and for sure a Windsor Clockwork will be 9mm in front. I can say this with 100% certainty because I own one.