OK party peoples, this is an interesting one. Steering head bearings are the bearings that let your handlebars and forks turn smoothly to steer the front end of the bike. When these bearings wear out or get damaged due to large bumps, accidents or (ahem) badly landed wheelies, they develop a 'notchy' sort of feel, where the bars will no longer turn perfectly smoothly. This plays havoc with handling - the bars fall into these notches as you're cornering, and the bike can feel like it's steering itself against your will. It's quite unnerving, off-putting and downright dangerous. We're lucky to have as our project bike this week Damian's ZX-9R, which has just about the worst headstem bearing damage I've come across - so if you want to know how to feel for notchy bearings, make sure you come along, you'll feel what I mean for sure. Project: Replace steering head bearings, drain and replace fork oil. This is a fun job, it involves taking the whole front end off the bike: brakes off, wheel out, forks out (while they're out we'll take the opportunity to drain and replace the fork oil too), triple clamps off and then we can get to the bearings. Getting the bearings out and off the steering stem can be tricky. After that, we'll grease the new bearings, pop them in, put the whole shebang back together, torque the steering head a bit and marvel at the bike's new found handling prowess. Special tools/materials: New upper and lower headstem bearings, 1 bottle of 15 or 20W fork oil, high temp marine grease, scissor jack, some crappy magazines/bit of wood, bodgy tool to get stupid bloody Kwaka front axle bolt off (you'll see what I mean, this is a great bodge that Rog showed me), straight drifts/hammerable screwdrivers to pop bearings out of races/off stem, and if possible a decent bench vice to hold steering stem and fork tubes for parts of the operation. Location: TBA. Has anybody got a bench vice? I've got the rest. Time is 7pm Wednesday 9th April. Please PM me if you want to volunteer your place for this week's fun and games.