Lyka Kit #4 Rear Wheels/Disc

Kit # 4 was simple enough no real issues. Following are images of my assembly of the rear brake caliper bracket. Again I swapped out hardware for stainless steel.

Next was assembly of the Rear Wheel Spacers on to the wheel hub.

Followed by the Disc Brake.

And then the Rear Disc Drive Adapter hub.

I test assembled using the M6 x 40mm countersink socket screws and test assembled each hub with keys onto the axles. I had to do a little fine tuning on the keys to assure a nice sliding fit. I didn't want to have an interference press fit, but rather a tight slide fit. Once I was satisfied with both Adapter Hubs fitting on the rear axles, I replaced the steel countersink screws with stainless steel and used a medium thread lock for final assembly.

Then I placed the bearing spacer on the axle with the M16 steel washer and tightened it all with the supplied M16 Castle Nut. I noticed that the cotter pin hole is not exposed because the shaft is not long enough. I will investigate if there are lower profile M16 castle nuts available. If not, probably thread lock would be sufficient. I would hate to have a wheel fly off !!

View of the rear wheels assembled.

Update to this Posting: I did find a different M16 Castle Nut that was about 1 mm shorter and the castles were also cut deeper, maybe another 1 mm deep. So I'm now satisfied with the fixing of the rear wheels to the axles with cotter pins.