iduckett

This is a 3D Printable Pure Nylon (no fibers) MacRide (or Mac Ride) Seat Headset Spacer model for 1-1/8 steer tube. Preferred thicknesses are 12.5mm & 20mm. Printed in Easy PA, 100% infill, zero supports, 3+ walls. Save yourself 22$ USD for shipping a new one. If you want the most robust version, go with the 20mm spacer. It will not break printing it in PA. Maybe would be a good PA-CF or PA-HT candidate, but less fibers means more tough for PA (less brittle). If you want the most robust lower stack version, go with the 12.5mm version. Still super tough in Sunlu Easy PA. The 10mm spacer is printable, but they have all cracked on me. If you were to machine a spacer, this would be the model to use. Or if you have a printer that can do a different support material, that breaks off easy, you could try that. But the deep groove and ledges lead to a lot of stress on the internal groove corners, which leads to cracking. Printing Print your own out of Sunlu Easy PA, find the models here: https://www.printables.com/model/1279319-macride-headset-spacer-threadless-mtb-gravel-urban OR Purchasing If you don't have a 3D printer and would like to purchase this item, I would be happy to print and ship it to you. Send me a printables message or pinkbike message. Located in USA but will ship globally if required. Shipping will vary and affect cost. I have some in stock so just provide me a zip code and I can give you a quote. Currently it’s about $15 shipped for 4 (2x 12.5, 2x 20), but that is no guarantee. If I have an ugly misprint I’ll throw that in so you can cut it up and see for yourself how tough it is. I used it downhill MTBing (lift access) with my 5y/o and it’s held up great, and has not loosened up. I WOULD NOT advertise them if they were unsafe. And have tested them with my OWN children for years now. So take that as you will. I'm also not making much on them. Only enough to buy more rolls of Easy PA to make more spacers, and pay for my landed cost. This is my contribution to the bike community. Although I reverse engineered this spacer I strongly recommend supporting MacRide as a company, over other “copies” that shall not be named. They're a great bunch, Canadian made and I mtb'd with my two sons, and now my daughter with the seats. I have two and they're easy to add/remove before/after a ride. I've crashed with them and you basically cradle your kid as you fall and bash your own elbows into the ground. They're still attached to your bike with the foot pieces so have been completely fine in each case. You can find them here: https://mac-ride.com/products/black-mac-ride-child-bike-seat https://mac-ride.com/products/1-1-8-spacer