I ought to have known that I should have gone looking for some scissors instead of using a large, heavy knife to trim a zip tie. I'd modified a bell in order to zip tie it to a 1 1/8 steerer. The zip tie put up some resistance so when the knife finally made it through, it continued at some velocity into the bike's top tube.
I then felt the need to sand off the paint in the affected area, examine the damage, sand the metal around the dent (or cut?) in the metal to avoid future a stress riser. Then attempted a paint touch up, which just looked terrible, until I finally just put some reflective tape on and shamefully called it a night.
Sometimes I wonder about myself. The more I learn the less I find I know.
Re: Steve's comment; I think he was referring to the estimated combined weight of you, your bike and the impressive loads you at times carry. Pressuring up for the heaviest scenario, so to speak.
IanA Alberta Canada
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I love dad hauling the bikes to the gas station for their annual airing up. I can picture the truck pulling up (actually it's a giant late-'70s station wagon in my mind, but probably a truck), the whole scene. She's very good at putting you in the world of the story.
Why a lot of those '90s vans came with those graphics. Someone said, "Whelp, there's sure a lot of space there. A racing stripe makes sense." *
*it did not make sense
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I just got back from 14 miles of fun. You all have never LIVED until youâve had air in your tires. I soared up the hills. I shook my teeth loose bombing down the hills! Did you all ride horses growing up? I rode my bucking Clem all over these trails and I did not fall off, not even once. Fine, Steve and DP, you guys are a little right - I could let some air out. That bike really rattled on the way down Killer Hill, and I could feel the grips jumping around trying to shake loose of my hands. But come on, it was FUN. Have *you* ever ridden your bucking Clem around *your* neighborhood? No, you havenât, because you insist on sensible tire pressures and supple tires and miss out on all the fun.
So must be at least 10 years ago now, standing on the dinner line
at Bike Virginia, and there's this group just ahead of me, people
from Virginia Beach, talking about tire pressure. This one guy -
huge - a Deuce and a Half for sure, built like a football player,
and he's saying how much he loves his 19mm tires blown up to as
close to 200 psi as he dares. There's only one "hill" in the
area, a bridge, and he's saying how much he loves coming down that
bridge at top speed, the entire bike vibrating, his teeth
rattling, because it feels so fast...
Ian - hilarious and so relatable. Iâm laughing with you, not at you. Also, you are the only one whoâs offered an Admission of A Thing You Ought To Have Known. Gold star! Andrew - thank you; thatâs so nice. âşď¸ You can stay. Joe - YOU THINK I WAS BORN IN THE 70S?!? There was no 70s station wagon - there was a sweet 90s GMC Safari van with the inexplicable maroon striping down the sides that I called âour racing stripes.â It had cup holders. It was slick. Also, Joe is right about the roads here - theyâre nice. Steve was today years old when he learned not to guess at a womanâs weight.
Right day, wrong lesson: today he learned to be more mindful of
what he writes while floating on Tramadol, and not to leave out
the "at least".
Rob
50 - 55 mm is a HUGELY WIDE tire. 10mm wider
than a 42mm. If someone who is MASSIVELY heavier can ride a
42mm tire inflated to 50-55 psi in comfort, never getting pinch
flats, there is simply no way no how that that same pressure in
a tire 1 cm wider and a rider who is DRAMATICALLY lighter will
be OK.Â
Well I'm going to disagree to a degree. For the mostly smooth terrain Leah rides and the Killer Hill⢠she climbs to get home, I can't see 30-40 psi being anything but drag for her. She can certainly experiment with pressures and 55 may be a bit much, but she's not riding terrible roads and dirt.
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See, I can already add another post to this list of Dumb Things I Did and it hasnât been 24 hours.Â
Yesterday, when I found out about tire pressure, you know I went around with my floor pump and inflated ALL the tires of the bikes in the garage. Baby Bear weighs almost 60 pounds and his Specialized 24 inch got 60 pounds of air (fun!). #TheClemRider is about 85 pounds and got 55 pounds of air in his 26 inch Kendas on his Clem. Wonât they be surprised when they head down Killer Hill?! đą
And remember, it's not just the vibration. Hit a pothole the wrong way on a grossly over-inflated wide tire and it'll act just like a basketball when you slam it down onto the pavement.  SPROING and it'll rebound back at you. You may be expecting a bump, but you probably won't be ready for the bars pulling up out of your hands.
Now, excuse me while I go fix THAT. It might be one thing for me and Steve (since we weigh the same, you know) to inflate our tires to 55, but my kids donât know what Iâve done and did NOT in fact, grow up riding horses. Yikes.
 Â
Just for scale.
Ok, Steve, Iâll stop busting your chops. You had it coming though, and also it was hilarious. đ¤Ł
... the optimum balance between 'feels slow' and 'starts bouncing' can deviate notably from Jan's calculation and the graph that Steve showed.Â
Just for the record and for clarification, and not at all to disagree: by "bouncing" one can mean the ping pong ball sort of bouncing that comes from excessively high pressure, where even small bumps cause the tire to hop, or on the contrary, the bouncing that comes from pedaling on a tire so soft that it sags with each pedal stroke.
In my defense as a manly mansplainy mansplainer, Our Bicycle Belle ASKED me about tire pressure. And I gave her the exact right answer the rest of you are wrong I rest my case amen.
On 5/4/20 9:41 PM, Bicycle Belle Ding Ding! wrote:
> I nearly talked myself out of this thread because Iâm about to make myself look really stupid, but it was so funny that Iâm doing it anyway.
>
> Iâve been somewhat of a mess my whole Biking Life. I adored bikes, always, but I never had a proper bike education or a nice bike until 2012. I was born to the least mechanically-inclined parents on earth, and my mom was more proficient than my dad. I grew up riding the worst bike you can imagine, always with nearly-flat tires. Maybe once a year, usually in spring, Dad would haul my bike to the gas station and fill the tires with air. It was like riding on clouds. But eventually, my tires would lose air again and Iâd have to wait until next year. Not that Iâd notice anything was amiss - I was too busy riding barefoot all over small town North Dakota, falling out of trees, eating penny candy from the bowling alley and building forts. Tires, what tires.
>
> I grew up, went to college, met and married my husband, who grew up on a farm. We moved across the country with almost nothing and started our life and careers. My farmer father-in-law came to visit and outfitted our garage with tools he thought mandatory, including an air compressor. I think it was my 27th birthday that my husband told me he wanted to get me a bike. I knew just the one, it was *really* expensive at $125, but it was my birthday and I would get the best: A blue Schwinn Sidewinder from the local Walmart.
>
> While he was visiting, my FIL (again, a farmer and not a bike rider) noticed my bike tires were pathetically low. Of course I hadnât noticed; flat tires were de rigueur for me! He filled them with the air compressor, pushed on the tire and declared it good. And from then on, that was how I did it.
>
> Iâve heard you all talk about your supple tires and not wanting them rock hard, and I knew *I* had supple tires because when I squeezed them, there was a tiny but perceptible give to the rubber. I mean, thatâs what you all meant, right? So I made sure I never filled my tires very fully because supple tires were the ticket.
>
> I ended up with a floor pump last year. It has a gauge that tells you âhow much pressure you runninââ. I have started using it lately and began to pay attention to what my tire pressure was. 20-25. Huh. I remember folks discussing tire pressure and I didnât recall theirs being so low. So, I asked Joe, who seems to answer most of the questions on the List and doesnât seem to resent it. He (through fits of laughter at his keyboard, Iâm sure) said that yes, I actually should be pumping up my tires to a certain number and that yes, they would feel rock hard, and no, squeezing them is not a good test, and indeed I would not explode my Big Bens (with max psi of 70) if I filled them to 55 psi.
OK, let's deconstruct this a bit. I looked them up: according to
Schwalbe's web site a Big Ben no matter the diameter is either a 50mm or
a 55mm wide tire.  As you know, pressure is related to load: the
heavier the load, the more pressure you need. No different here from
your car or truck. I figure I'm probably 50 lb heavier than you (100 kg
after breakfast today) and I run my 38mm 650B tires at 4 atmospheres,
around 60 psi. So if you at 75% of my weight are running a tire that's
maybe 15mm wider than mine and 5 psi less than I am, I'd say chances are
pretty good that you're inflating those tires to a much higher pressure
than you need to. Chances are, if you reduce your pressure to perhaps
40 or maybe even a few psi less than that, you'd get a better ride.
You'd probably have less rebound after hitting a pothole, too. That's
another -- quite dangerous -- downside to overinflating a wide tire: it
can rebound like a basketball, pulling the handlebars right out of your
hands. I've got a jagged lump in my collar bone because of that.
>
> I was today years old when I learned that your tires are *supposed* to feel rock hard and be filled to an actual number.
Not a big wide tire like that. Now sure, a 23mm tire at 100 psi is
definitely going to feel rock hard. I can feel the (ultra supple EL
casing) sidewalls on my Herse Loup Loup Pass tires give when I squeeze them.
> Â I was today years old when I learned that my âsupple tiresâ were just tires that were low on air.
>
> Who else has managed to miss the obvious when it comes to bike stuff?
>
> Leah, who would like you to know she is smart at other things. Just not bike things.
>
I nearly talked myself out of this thread because Iâm about to make myself look really stupid, but it was so funny that Iâm doing it anyway.
Iâve been somewhat of a mess my whole Biking Life. I adored bikes, always, but I never had a proper bike education or a nice bike until 2012. I was born to the least mechanically-inclined parents on earth, and my mom was more proficient than my dad. I grew up riding the worst bike you can imagine, always with nearly-flat tires. Maybe once a year, usually in spring, Dad would haul my bike to the gas station and fill the tires with air. It was like riding on clouds. But eventually, my tires would lose air again and Iâd have to wait until next year. Not that Iâd notice anything was amiss - I was too busy riding barefoot all over small town North Dakota, falling out of trees, eating penny candy from the bowling alley and building forts. Tires, what tires.
I grew up, went to college, met and married my husband, who grew up on a farm. We moved across the country with almost nothing and started our life and careers. My farmer father-in-law came to visit and outfitted our garage with tools he thought mandatory, including an air compressor. I think it was my 27th birthday that my husband told me he wanted to get me a bike. I knew just the one, it was *really* expensive at $125, but it was my birthday and I would get the best: A blue Schwinn Sidewinder from the local Walmart.
While he was visiting, my FIL (again, a farmer and not a bike rider) noticed my bike tires were pathetically low. Of course I hadnât noticed; flat tires were de rigueur for me! He filled them with the air compressor, pushed on the tire and declared it good. And from then on, that was how I did it.
Iâve heard you all talk about your supple tires and not wanting them rock hard, and I knew *I* had supple tires because when I squeezed them, there was a tiny but perceptible give to the rubber. I mean, thatâs what you all meant, right? So I made sure I never filled my tires very fully because supple tires were the ticket.
I ended up with a floor pump last year. It has a gauge that tells you âhow much pressure you runninââ. I have started using it lately and began to pay attention to what my tire pressure was. 20-25. Huh. I remember folks discussing tire pressure and I didnât recall theirs being so low. So, I asked Joe, who seems to answer most of the questions on the List and doesnât seem to resent it. He (through fits of laughter at his keyboard, Iâm sure) said that yes, I actually should be pumping up my tires to a certain number and that yes, they would feel rock hard, and no, squeezing them is not a good test, and indeed I would not explode my Big Bens (with max psi of 70) if I filled them to 55 psi.
I was today years old when I learned that your tires are *supposed* to feel rock hard and be filled to an actual number. I was today years old when I learned that my âsupple tiresâ were just tires that were low on air.
Most of the unfortunate things I've misunderstood have been song lyrics. It's so funny to be listening to a song you've heard a thousand times and suddenly realize you've had it wrong for 40 years!
The other things I've got wrong? I'll take to the grave! LOL
My thing is reading words wrong and never making the connection. The other day I saw 'infrared' on the TV screen and realized it's...the word you understand as infrared. I've always read is as in-FRAIRED even though I know the word as correctly pronounced when I hear it. Which doesn't even make sense!
I probably shouldn't be admitting this incredibly stupid thing...
And of course, for those who were children
attending religious instruction, who could forget Gladly the
Cross-Eyed Bear?
Penultimate: The one just before last, i.e., "The driver is on the penultimate lap of the race, one more to go after this."
These are my guesses, Leah would figure me out in a hot second if I cheated. I don't know how she would know but she WOULD SO KNOW.
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Sincerely,
Ryan Hankinson
West Michigan
A good rule to bear in mind is, if you don't
know what you're doing maybe you should just let the LBS take
care of it.
The learning curve for cranks and bottom brackets can be quite steep and expensive. Especially back in my day when Google was a book or magazine page you tracked down and hoped you understood the grainy pics. Good times!
Yes, but you can't learn stuff like the
difference between too loose, just right and oh shit from a
video.
A good rule to bear in mind is if you don't know what you're doing you can read stuff and watch videos and learn.
I generally only apply this approach when it comes to wheels and frame repair. My attempts to true a wheel only made it worse.
Me too
One of the easiest ways to ruin a wheel I've ever seen
Austin
On Wednesday, May 13, 2020 at 6:23:48 PM UTC-4, Steve Palincsar wrote:A good rule to bear in mind is, if you don't know what you're doing maybe you should just let the LBS take care of it.