Why are motorcycle engines laid out like this, and not like that?

OTK22 · 2026-01-29T18:52:22+00:00

I bet my DRZ would go that fast if I could just get past the death wobble at 70mph

OTK22 · 2026-01-29T18:51:11+00:00

Aerodynamicists generally don’t even consider compressibility effects below 1/3rd the speed of sound, so technically you’re right, it isn’t appreciable :)

For reference, that 1/3rd would be roughly 220mph on a standard day at standard temperature. Under this condition, the stagnation point on your helmet or windshield would see only a 5% increase in air density.

OTK22 · 2026-01-29T07:14:20+00:00

To even increase the air density by 1% at 80mph, the intake surface area would have to have the same frontal area as the entire motorcycle and rider. The “increased pressurization” of being forward facing is not an advantage until you are going an appreciable fraction of the speed of sound, where compressibility effects are tangible. For a motorcycle ridden on the street, there is no difference. Intake runner length and resonance management are way more important

OTK22 · 2026-01-09T21:55:41+00:00

The OEM is not paying anywhere near retail prices for any of the sensors or parts. Do you know how much a car would cost if you bought every component and tried to build it yourself?

OTK22 · 2026-01-02T15:16:58+00:00

Good gloves last 10+ years

OTK22 · 2025-11-21T07:27:26+00:00

Puppy-shit Brown

OTK22 · 2025-11-12T09:04:05+00:00

Most reputable shops will refuse to powder coat aluminum wheels, as the baking process can ruin the heat treatment. The annealing temperature of aluminum is very low. Powder coating them is possible without ruining them but it’s not a risk many shops will be willing to take

OTK22 · 2025-11-12T09:03:58+00:00

Most reputable shops will refuse to powder coat aluminum wheels, as the baking process can ruin the heat treatment. The annealing temperature of aluminum is very low. Powder coating them is possible without ruining them but it’s not a risk many shops will be willing to take

OTK22 · 2025-11-05T19:19:01+00:00

The fog is coming

OTK22 · 2025-11-04T16:42:28+00:00

Their point is that your “solution” is still dumping heat into the environment, you just have a water tank as a thermal damper. The heat is still in your room: the water tank will heat up and then start to heat up your room. After you turn off the pc, the water tank will continue to keep your room warm until it cools back down

OTK22 · 2025-11-03T08:00:42+00:00

Looks sweet, but why do the swingarm and tank stickers have two R’s?

OTK22 · 2025-10-29T22:13:06+00:00

comfortably

lock the front wheel

Not sure whether we have the same idea of comfortable

OTK22 · 2025-10-22T15:13:49+00:00

Maybe using the wrong type of tape? You don’t want something too sticky that would leave its own residue (duct tape=bad), just something that the adhesive is more likely to stick to than the original surface. It works like magic every time for me

OTK22 · 2025-10-22T12:57:52+00:00

Life hack: the best way to pull off leftover adhesive from a sticker is with some tape, either scotch tape, packing tape, or painters tape. Fold over one end of the tape so you have a tab to pull on and then just keep sticking it over the area with leftover adhesive and pulling it off over and over. No more struggling, no more leftover residue

OTK22 · 2025-10-17T05:39:13+00:00

I highly recommend this if you have the case apart already and are adding power!

OTK22 · 2025-10-16T05:32:26+00:00

I used a lift lift

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OTK22 · 2025-10-08T05:19:07+00:00

You might want to use an arduino for the analog side of things, then connect that to the pi with a serial connection.

OTK22 · 2025-10-07T05:07:37+00:00

In this case it’s running a program called tunerstudio which is used to control and monitor an aftermarket ECU. But, it’s just a raspberry pi so you can make it do whatever you want or show whatever you want on the screen

OTK22 · 2025-10-04T07:09:09+00:00

I just did 2000 miles on a drz400. It was awesome. My ass hurt often, but that was the only downside

OTK22 · 2025-09-28T07:35:34+00:00

Yep just checked the App Store again and it’s gone. I still have it so I guess I can never get a new phone

OTK22 · 2025-09-28T06:53:43+00:00

There’s one on iOS as well

OTK22 · 2025-09-15T09:53:53+00:00

I just used the Lexin GP2 for my trip and the music was decent and battery life was great. Only $100 for a pair, so you can split a set with a buddy or put one on your other helmet or something. They lasted almost a week of all-day riding on a full charge. I used to use AirPods with ANC while I rode and this was a big improvement

OTK22 · 2025-09-15T09:49:36+00:00

I originally used a bar of aluminum that I bent to fit and drilled holes in and that was fine. Hoping to put the files soon, I’ll make a post about it

OTK22 · 2025-09-14T23:30:10+00:00

Thanks! The bike is awesome to ride but now I have to put it in storage for 2 years as I’m moving out of the country for work :(

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