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That helps as I'm fiddling with some axle and tyre mods, thanks

I wondered if it was moulded or hot pressed out of sheet. Reliant on the upper belt cover for some stiffness. On one zerda I have some metal angle reinforcers on the castor angle. I don't think they're in the manual. May have been an afterthought accessory or third party mod.

Coming late to this party but is offset important for racing class rules, stresses on other car parts or steering geometry or all three?
I was wondering if tyre alignment with steering kingpin was important.

Dadio wrote: ↑Tue Nov 15, 2022 1:42 pm Like this.
knuckle v13.png

Yup looks great. Thanks

Dadio wrote: ↑Tue Nov 15, 2022 12:23 pm Ok so just a 4mm extender with larger holes for screws to slide through .

Yes that's right, thanks

To save any confusion don't think about the bearing sizes. Just make the knuckle extender 4mm thick thanks.
I'll tinker with the bearings.

I turned the shock support on the 44b to match the zerda. It gives better alignment but it might interfere with some bodyshells. Not an issue for me. The upper shock retaining bolt is so much smaller than the hole in the shock so that a rubber spacer works I suppose.
A minor detail?

Another factor in this zerda axle experiment. As I can't find bearings with 15mm outer and 5mm inner I got 5x10x4 which fit inside 10x15x4 so I've got options of trying the 6x15x5 zerda bearings with some spacer material making 9mm wide bearing or 8mm using 4mm bearings combo. I can see I'll be tink...

Dadio wrote: ↑Mon Nov 14, 2022 2:37 am I'm gonna say congratulations on your last restoration for a while

I dunno just restoring a different type of buggy, and if your awake anyway...

Very fair thanks. As the bearing outer rings are about the same thickness there doesn't seem to be any fouling or friction but maybe 0.25-0.5 mm extra on the extension or I'll just add a shim.

Ideally the pivot of the steering should be in the centre of the wheel , if it's designed that way in the first place then if you increase the offset with extending the hex hub further out then you should then use wheels with an offset that corrects it , in the real world unless your a pro driver y...

Looks like no tolerance to set the bearings deeper without affecting the dogbones and would have to extend outwards. It could be a 4mm extension that would be fixed with longer bearing retainer screws. What I wonder then is how wheels and steering might be affected with any changed position relevant...

I'll get a pic of an assembled unit and check the dogbone clearance as I think the tamiya needs to go a bit deeper into the knuckle .

The 11mm widest part of the cup of the tamiya axle fits so snugly into the knuckle it's almost like a bearing and some relief achieved by sanding the knuckle

The hirobo 12mm hex problem. Curiosity I bought some cheap tamiya hpi axles. Then some 10x15x4 bearings to fit the cup of the axle. Can't find 5x15x5 to fit the narrow part of the axle but used 6x15x5 zerda with some spacer (rolled plastic for the time being). Offered up to zerda steering knuckle to...