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Kimjon's 50cc (then later ... 150cc and 400cc...then 1000cc) of awesomeness!


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Todays efforts, DIY chain slider made from hard plastic landscaping edging.

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I've ordered one from ebay for $19 as honda nz wanted $89 for the same part.

This will last years, so I'll keep the new one as spare when it arrives.

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And exciting news...got rid of that deathtrap from TopmaQ. And brought a decent hoist.

I got a refund, but only after reporting it to worksafe. Honestly don't buy one of those TopmaQ lift platforms like I've posted previously, it's simply an accident waiting to happen. No good will come of it, just you losing a limb or getting crushed to death!!!

This new one is sweet. Very safe, with proper well thought out safety features. It even has 2 safety pins in different locations for extra redundancy, I'm very happy with it.

Oh and its red, so my ocd is satisfied too, my universe is in balance again.

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12 hours ago, xsinclairx said:

What brand is the new one?

Its from Machinery House.

Its still Chinese made, but the fundamental difference is the design of this one is a much better concept.

The action of the new one (Machinery House) works like a scissor lift, where one end is a pin joint, the other is free to move on rollers. The safety pins go into the roller channels, so if it were to fail...there's 2 more than adequately sized pins that block and stop the rollers.

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The TopmaQ deathtrap has a guillotine action, and the arm its trying to stop has a huge amount of leverage on it. The "safety" pin has a huge gap between contact points, which creates a massive bending moment in the pin itself.

I ran some calculations and found it woefully inadequate. The force on the TopmaQ safety pin is 6x that of the Machinery House pin, and that's in share force, then there's the huge bending moment acting on it which is the main cause of failure. The Machinery House hoist has negligible bending moment and share force due to superior design.

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But I don't need to show the calculus...this picture speaks for itself.

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Got the bike up on the hoist, so nice to work on when up at that level. My son wanted to be lifted up as well, so he joined in on the ride.

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I managed to extract this broken bolt. Then broke the new bolt off in the same fucking hole!!! Take 3, and you wouldn't fucking believe it...I snapped the bolt a third time!!! Finally I found a grade 8.8 bolt, retapped the thread size to suit and that worked great. Days like this are just ridiculous, I wanted to push the bike into the sea and leave it there...

 

#bikelife

#bikesarefordicks

#fuckbikes

#bikesareshitcunts

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Im such a product whore. I've always wanted one of these stands, so went shopping today...

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Gives the bike some street cred, and is actually pretty handy getting the wheels off the ground for maintenance etc. I already sorted a binding issue with the front end, where the forks where too close together on the axle. And identified the front brake is always rubbing, but yet to fix that problem.

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There's only about 15m run up to that "jump" so its full send, but just 2nd gear. It is what it is unfortunately. Need to buy a bigger property and/or get a digger...hmmmm????

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This edge banding is brilliant. Such a simple addition, but makes such a great improvement:

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The ramp slides effortlessly on the concrete now. It protects the ramp and it gets rid of the horrible noise it used to make. Sweeeeet!!!!

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Proud father/son moment, my boy following me around the section like a puppy on his bike. Totally fucked the clutch...but well worth it.

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Easy fix.

Makes all the shit days feel good. Can't wait to see him flying by me, giving me the bird, pulling a wheelie and saying FTW...

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The boy keeps smoking the clutch. These bikes aren't really suited to hills like we have, that plus he's only just learning techniques like throttle control, not stopping halfway up a hill, conserving momentum etc...so I'm going as extreme as I can on the gear ratio.

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You think there'd be one that works in this pile...but nope

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Pretty much the same as whats on the bike.

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So I've ordered some shit off trademe:

 

•11 tooth front sprocket (currently 14T on there now).

•68 tooth rear sprocket (currently 54T on there now)

• some T8f chain and joiners.

 

That should improve things a lot, as 

54/14 = 3.9:1 ratio

68/11 = 6.1:1 ratio

So my new setup should be 2/3rds the torque, a third less strain on the clutch, but 2/3rds the current speed.

Im not worried about the loss of speed as he's not skilled enough to use it all anyway. Later I can adjust it back in stages if required. Or by then he may need a bigger bike at the rate he's growing?

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A mates farm had pylons replaced with bigger pylons. They got to keep the steel. Ive always tried to think of things that you could make out of it. Today I found a use:

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Sweeeeet!!!

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I gave the carrier some absorption time overnight. I was trying to take shortcuts, and just bolt on that solution for the dirt bike, while keeping the vespa channel as well.

It increases the moment something terrible. It was already pushing the limits and the additional channel increases it by 30%, something i wasn't happy about. So...

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Tears to my eyes cutting this masterpiece up.

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Additional rail welded in.

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This took a lot of thought. But the solution was easy once I got the idea squared away in my head.

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Sorted!!

 

 

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