月別アーカイブ：2026年10月

: XR-BAJA

Honda XR250R (ME08) vs XR250 (MD30) Crankshaft Bearing Differences

2026/10/4

Hi everyone, Boo here.Today's topic is the difference between two versions of the Honda XR250: the MD30 (the Japan-market road bike, sold as the XR250 / XR250 BAJA) and the ME08 (the competition-only model, the XR250R). I have already written about the differences between the MD30 and ME08 front forks. This time, I look inside the engine, at the crankshaft bearings in particular.(This post simply shows that the crankshaft bearings differ in these ways. It is just a quick comparison, not a repair guide.)If you own an XR250R (ME08), this is what your crankshaft bearing looks like next to the ...

: maintenance XR-BAJA

Honda XR250R (ME08) Fork Teardown Part 3: Damping Parts vs MD30

2026/10/4

Hi everyone. This is my suspension series, where I strip down the front forks of my secondhand Honda XR250 (the Japan-market XR250 BAJA / MD30). [Part 1: Teardown and First Clues] (From the outer shape and the bottom adjuster, I guessed that the forks were ME08 parts.) [Part 2: Full Teardown and Parts Comparison] (I stripped the forks completely with a special tool and confirmed that they had aluminium cylinders.) https://motorcyclelifeboo.com/en/finding-a-hidden-racer-setup-honda-xr-baja-md30-front-fork-teardown-part-1/ https://motorcyclelifeboo.com/en/xr250r-me08-fork-teardown-part-2-md30-comparison/ This is Part 3, the final part of the series: a close look at the cylinders and the damping parts. This time, I measured and compared the deepest ...

: maintenance XR-BAJA

Honda XR250R (ME08) Fork Teardown Part 2: Inside vs the XR250 MD30

2026/10/4

Hi everyone. In Part 1 of this series, I took the front forks off my secondhand Honda XR250 (the Japan-market XR250 BAJA / MD30). From their outer shape and the adjuster at the bottom, I became convinced that they actually came from the enduro racer, the XR250R (model code: ME08). https://motorcyclelifeboo.com/en/finding-a-hidden-racer-setup-honda-xr-baja-md30-front-fork-teardown-part-1/ This is Part 2: the full teardown and parts comparison. To turn that hunch into a proven fact, I used a special tool to strip a fork leg down completely. I then laid the parts next to the stock internal parts from an MD30 (the Japanese road-legal model) that ...