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tk,
@tk@bbs.kawa-kun.com avatar

Can a Flat-Tread Motorcycle Turn? How Motorbikes Steer

If you ride, your brain knows how motorcycles work intuitively, but we bet you’ll struggle to explain it accurately. We’re trading opinions for science in a pursuit to understand how motorcycles really steer.

These dynamics also apply to riding, obviously.

@cycling @biketooter @mastobikes

tk,
@tk@bbs.kawa-kun.com avatar

Getting the feeling that if you're mashing the pedals, your saddle is probably too low. :blobfoxthink:

@cycling @mastobikes @biketooter

tk,
@tk@bbs.kawa-kun.com avatar

I feel like learning how to ride a made me a much better and more confident rider. :blobfoxhappy:

@cycling @mastobikes @biketooter

tk,
@tk@bbs.kawa-kun.com avatar

Had a great time on this month’s Swift Industries Social Ride! There were almost 40 of us on this ride since we all wanted to enjoy the nice weather after so much gloomy rain. The pace was nice because we were able to chat most of the time, but we also were given free reign to climb and descend more significant hills at our own pace. (Album)

Hoping to do more social rides this Summer since I think it’s what I really need out of my hobbies (both bicycle and motorcycle riding) now.

@cycling @mastobikes @biketooter

Saint Bread
Seattle Bike Swap Entrance
Map

tk,
@tk@bbs.kawa-kun.com avatar

From Instagram:

🦅BLACK MOUNTAIN CYCLES “MOD.ZERO”🍻 . . カリフォルニアはポイントレイズステーションから昨夏届いた新作は、これまでマイクさんが産み落としてきた数々のフレームのいいとこ取りをした今の答えともいえるものだけど、それから半年ほどたって、彼の工房も訪れ思想を学んで(よかったらYouTubeで)、今日も仲間たちと本当にいいバイクだよねとしみじみ話した。

剛性高く、カーボンフォークへの交換も容易な44mmヘッドチューブに、選択肢が多いフラットマウントブレーキ。

ライドシチュエーションや好みにあわせて、700cまたは27.5”のコンパチで、前者なら50c、後者なら2.25”までOKのゆとり設計。

ボトルケージやパックマウントも豊富で、ドロッパーポストにも対応。

ラックやフェンダー用のマウントも充分で、ヘッドチューブが長いからコラムスペーサーをあまり積まなくて済むのが僕らが特にお気に入りポイント。

90年代に大手メーカーでさまざまなフレーム設計に従事してきたMike Varleyさんが、自分の理想に正直なフレーム作りをするために2007年に立ち上げたブラックマウンテンサイクルズ。

有名ではないけど、それぐらい静かな感じがいいなと思いますし、マイクさんのやりたいことを日本からささやかながらも長くサポートしていけたらと思っています。

@cycling @mastobikes @biketooter

🦅BLACK MOUNTAIN CYCLES “MOD.ZERO”🍻 (headtube)
🦅BLACK MOUNTAIN CYCLES “MOD.ZERO”🍻 (fork crown)
🦅BLACK MOUNTAIN CYCLES “MOD.ZERO”🍻 (stem)
🦅BLACK MOUNTAIN CYCLES “MOD.ZERO”🍻 (front brake)
🦅BLACK MOUNTAIN CYCLES “MOD.ZERO”🍻 (bottom bracket area)
🦅BLACK MOUNTAIN CYCLES “MOD.ZERO”🍻 (seatpost area)
🦅BLACK MOUNTAIN CYCLES “MOD.ZERO”🍻 (rear hub)
🦅BLACK MOUNTAIN CYCLES “MOD.ZERO”🍻 (rear)
🦅BLACK MOUNTAIN CYCLES “MOD.ZERO”🍻 (front)

tk,
@tk@bbs.kawa-kun.com avatar

After over ten wonderful (and challenging!) years, G&O Family Cyclery is shutting down.

Over the years our cost of doing business and the cost of living in our city have only gone up. We have aspired to provide living, professional wages to highly skilled tradespeople. I firmly believe that high wages and more opportunities and entry level positions for more diverse types of mechanics and salespeople are the keys to revising the bike retail model and replacing the exclusive and gatekeeping culture of bike shops and at the same time provide service that is more reliable and better value than riders are typically able to depend on.

After years of skirting the edge, depending on tightening margins, and digging for good luck in heaps of bad, we have hit a string of the bad kind; the reality that we cannot support ourselves and at the same time do this work in the manner that we most want has become undeniable.

It is a true thing to say that if your business can’t afford to pay fair wages, your business has no business doing business.

The shop’s closure is happening faster than we would have liked, and the livelihoods of my staff and myself are all at risk, as is our ability to meet all of the obligations we have to our customers. We will be closed for the next few days to organize ourselves, and then in the next few weeks, starting on Wednesday the 17th, we hope that you’ll consider coming in and picking up anything you might need from our shop. We have many high-quality ebikes for sale, as well as accessories like lights and helmets. We have bags of Lego for sale on a sliding scale from $5-500. We have all kinds of lovely things, and any support would be greatly appreciated.

@cycling @mastobikes @biketooter

tk,
@tk@bbs.kawa-kun.com avatar

When I think of here, I just think of the cold, the rain, and all of the times I was either borderline or actually hypothermic when and similar outdoor activities in it. :blobfoxsad:

@cycling @mastobikes @biketooter

tk,
@tk@bbs.kawa-kun.com avatar

I still feel like most of the "innovations" in the industry over the past 20 years are largely money grabs. @cycling @mastobikes @biketooter

morpheo,
@morpheo@kolektiva.social avatar
tk,
@tk@bbs.kawa-kun.com avatar

Groupsets don't really mean anything when you use friction shifting. :blobfoxthink:

@cycling @mastobikes @biketooter

tk,
@tk@bbs.kawa-kun.com avatar

In all my years of , I've never found a great solution for cold weather. If I bundle up so I'm not chilled, then I soak everything with sweat in short order. If I wear less, then I freeze. I've tried Merino wool, synthetics (Gore, Event, etc.), and so on, but nothing works well enough for me.

Sadly, that means I don't do anything exciting on the during the coldest part of the year. Just my daily local loop. :blobfoxsad:

@cycling @mastobikes @biketooter

forgottenthirst,

@tk @biketooter @cycling @mastobikes I find I have a crazy steep temp gradient with almost any aerobic exercise and chronically overdress, so this makes sense to me

awl,
@awl@shitposter.club avatar

@tk @biketooter @cycling @mastobikes i warm the absolute hell out of my hands and feet before going out but for bicycling especially it’s been awhile. Want access to a mountain bike with nice wide tyres for actual snow.

tk,
@tk@bbs.kawa-kun.com avatar

This is interesting.

innicycle Threadless Conversion Headset

innicycle’s unique system combines a threadless stem adapter with a sealed cartridge bearing headset. The result: Finally a way to tastefully incorporate modern components with your vintage bicycle.

Advantages

  • Lower weight & greater rigidity
  • Retains stock threaded fork
  • Compatible with modern handlebars and stems
  • Easily adjusted bearing preload using only a 6mm hex key
  • Ultra low stack height (low stem position adjust-ability)

Fitment

The innicycle Threadless Conversion Headset™ is compatible with most road and some MTB bikes that originally came equipped with 1” threaded headsets and quill stems. Forks must be 1”-24 TPI threaded with a 7/8” (22.2mm) inside diameter. Both ISO and JIS* fork crowns are supported.

@cycling @mastobikes @biketooter

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tk,
@tk@bbs.kawa-kun.com avatar

If I were to get a titanium , I'd definitely spec a compliant steel fork. I feel like steel folks get a bad rap because consumer grade production ones are overbuilt, especially ones with disc brakes!

@cycling @mastobikes @biketooter

mhoye,
@mhoye@mastodon.social avatar

@tk @biketooter @cycling @mastobikes

I have an aluminum frame track bike with a carbon fork that I am considering switching to a steel fork. I guess the ride a little whippier but the front wheel is the place you want rigid control over what is moving where...

QRSS_Test,
@QRSS_Test@mastodon.sdf.org avatar

@mhoye @tk @biketooter @cycling @mastobikes IMHO, if you want better control over the front wheel, stick with carbon.

tk,
@tk@bbs.kawa-kun.com avatar

Why are shorter MTB cranks suddenly all the rage?

“I’m thinking about getting longer cranks”, said no one in 2023. It’s definitely true that shorter cranks are a trend right now, but why? Is it all nonsense, or is there something to it? Today we’ll take a deep dive into crank length and how it affects your performance. You’ll get a highly biased take on the subject from someone with very short legs.

@cycling @mastobikes @biketooter

tk,
@tk@bbs.kawa-kun.com avatar

I still like rim brakes, but I don't have any major opposition to disc brakes as long as they're using with thru-axles. (I don't like the pads rubbing after hard braking, which is usually caused by the hubs shifting.)

@cycling @mastobikes @biketooter

tk,
@tk@bbs.kawa-kun.com avatar

Finally figured out the process for getting my correct saddle position on a bike!

  1. Start with the saddle level, a bit low, and slammed all the way back on the rails.
  2. Raise the saddle in 3-5mm increments until you no longer lift off the saddle or have pain on or around your kneecaps. You may need to move the saddle forward a 3-5mm every now and then so you aren’t completely sitting on its nose.
  3. Once #2 has been taken care of, pedal with the technique of spinning your knees in small, tight, and fast circles. That pedaling technique will cause you to scoot forward to where your saddle should be.
  4. Move the saddle forward in 3-5mm increments until it feels comfortable with that pedaling technique. Be sure to keep the saddle as level as possible while doing this.

@cycling @mastobikes @biketooter

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