-
Posts
2,350 -
Joined
-
Last visited
-
Days Won
2
Everything posted by Kimjon
-
Added a cheap hour meter, so I can keep track of those services I won't do, then I can feel guilty about not doing them on time... That bracket for the hour meter was a nightmare to make. I stuffed up by drilling the wrong size holes, but persisted with trying to make it work after realizing what I'd done. Would've been much quicker starting again - but I didn't...FML On the plus side, it does look tidy now its done.
-
I made a plate for the other side, to prevent the riders foot from going into the front sprocket. Probably not really an issue, as the way its tucked away, plus the near impossible chance something could squeeze into the gap between the upper/lower chains - but hey as I've always said "Saftey 3rd"... I also set the rear suspension up. Google tells me around 25-30mm of bike sag, plus around 100mm of rider sag is about where I want it. I measured: As it was when I brought it to be 32/120 which did feel a little droopy? 1st adjustment I made got 22/100 sag numbers, which made it corner like it was on rails...but felt too hard for me after riding it for the past month on the Cadillac suspension settings. It felt like it would bouncy me off when landing my epic jumps (***my jumps are less than 1m high). 2nd attempt I split the difference and ended up at 30/110. This still feels a bit hard and bouncy in the rear compared to the ride I'd become accustomed to...but I figured I get used to it. The bike corners, handles and lands pretty well, it doesn't feel as droopy as it once did. So I'm leaving it like this for now. I may re-look at this in the future? But keen to just send it for now.
-
Such a cool day yesterday. Went to a mates farm, my son was able to ride in big flat open areas at full throttle for the first time, so awesome for his confidence learning to ride in an environment like that. Then we did a few trails through tree lined tracks following a river. He loved this, however it was quite a step up in skill level, which he handled it like a champ. By the end of the day his confidence increasing more and more. We probably overdid it with the ride from the farmers house to the river trail. This was about 2km each way. My son was exhausted on the return leg. Next time I'll shorten this up so it doesn't tire him out as much, lesson learned on my part here, its gotta be fun for the kids otherwise you risk putting them off.
-
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... Tears to my eyes cutting this masterpiece up. Additional rail welded in. This took a lot of thought. But the solution was easy once I got the idea squared away in my head. Sorted!!
-
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. You think there'd be one that works in this pile...but nope Pretty much the same as whats on the bike. 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?
-
Random slightly cool stuff you built but not worth its own thread, thread
Kimjon replied to h4nd's topic in Other Projects
Toolbox art? Well if putting stickers on shit constitutes "art"? Was quite the mission to do and if I did it again I'd probably position it slightly differently...but meh, it works and looks basically like what I had in mind. -
Hamilton Monthly Meet - 29th July 7pm Cock and Bull
Kimjon replied to Truenotch's topic in Upper North Island Region
Cheers guys, yip same boat. Juggling life, work, kids etc and when the stars align will go to these when I can. I went to a couple of events at burger fuel, but yeah, the struggle is real... -
Hamilton Monthly Meet - 29th July 7pm Cock and Bull
Kimjon replied to Truenotch's topic in Upper North Island Region
Link is broken i think? What date? -
Im such a product whore. I've always wanted one of these stands, so went shopping today... 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.
-
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. 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
-
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. 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. But I don't need to show the calculus...this picture speaks for itself.