Tanshanomi’s Bikes

How long does it take to turn down an axle? Well, when you don’t have access to a lathe, and you’re trying to get it done inexpensively, and you aren’t even sure … Swingarm pivot doneRead more

Okay, so not totally. I’ve collected more parts, scrubbed and sanded parts, and completed a few other minor bits of fabrication. But as far as the swingarm mounting issue goes, I’ve decided … I’ve wasted a whole year!Read more

Well, I thought I was making real progress, but I’m rethinking my idea of moving the swingarm pivot rearward from the rear engine mount. I’m afraid it’s not going to work. Look … Taking a step backwardRead more

With the swingarm clamped in place, I briefly played around with the rear axle. All sorts of finagling will be needed to align the rear rim and rear sprocket, both of which … Rear axle platesRead more

I’m starting to get excited; I actually mocked up the swingarm position this morning, if only temporarily. I decided to divorce the pivot bolt function from the frame cross-bolt and rear engine … Swingarm mock-upRead more

Here we have a rear carrier assembly I designed that would tie the frame, rear engine mounts and swingarm pivot all together. I thought the second, smaller tube at the bottom, though … A stupid design that won’t workRead more

And here we have the design for the assembled rear carrier assembly, which will tie the frame, rear engine mounts and swingarm pivot all tI need to make sure that my new … Laser measurementRead more

Now that I’ve had my fun with the arty-creative version of the part, here’s the boring, form-follows-function version, which is more like it will probably end up if I have to fabricate … More engine mount designsRead more

Since I discovered that the Matador rear engine mounting bracket that I bought on Ebay isn’t going to work, so I had to design new rear engine mount brackets. I first drilled … Engine mount designRead more

I stripped the paint off the swingarm. For some reason, somebody did a crappy job of painting the YZ125C swingarm white, and much of the surface was rusty and corroded where both … Stripping swingarmRead more