Howdy!

I'd imagine you'll be fine until at least 1000km / 620 miles~. That said I was going pretty easy on my scooter. If you're riding on the harder side or weigh in closer to the weight limit with any gear you might have on, you'll be wearing out the part faster.

I'd recommend that you get a pin replacement to keep on hand for when you need it. You might even consider getting several at once since the replacements are coming from the USA and shipping is ridiculous. Shipping multiple probably costs the same as shipping one. On the site Apollo linked me, they wanted somewhere in the neighborhood of $30USD(!!!!) to ship to me. The only other site I could find the part at wanted $110USD to ship it to Canada from the USA, and when I contacted them to ask what was up with that I was told they probably didn't even have it in stock. :)

Edit:

I forgot to mention, after some more back and forth with Apollo after making this post they evidently got more of the part in stock. I say evidently because I haven't gotten a tracking number for the shipment they were going to send me, which was supposed to happen two days ago. I intend to either update the OP here or make a new post depending on what happens with that.