Bicycle thread

[RxZ]

OK, so I am not going to be able to ride today However, I did almost run over a guy on a bike with my 4,000 pound car!

I was waiting about 12 cars back at a red light, on a road with 8 lanes. 3 going either direction, and where I was there were two turn lanes as well. Anyway, my light has been green for a while, but I am still waiting for everyone in front of me to go. The guy I am behind starts to go, so I do as well. And then SLAM my brakes! In the split second between the guy in front of me going, and me starting to go, a guy on a shiny red bike pulls between us going across all 8 lanes! He is commuting from work I would guess because of his attire and the backpack he had, but had racing shoes and clipless pedals He was basically duck-walking the bike through the 8 lane road. It was a wonder I didn't hit him, or anyone else.

I try to always watch for bikes and motorcycles; but come on, I did not expect one to be right there!

[Gummee!]

Originally Posted by RxZ

Due to holidays and life in general, I have not ridden in about 2 weeks.

I am going to try my best to get away from work with enough time to ride today....

Been a few hours for me. 2:01 and 27mi of road and gravel with a coupla sumbeeching hills thrown in. All in all, a good time despite how torqued my legs were when I started.

...I knew it was gonna be an interesting day when my buddy takes off like a shot at the bottom of the first hill. That'd be within 10min of putting cleats into pedals.

I get from him later 'Man! I just HAD to go for that KOM.' Uhh yeah, no warmup, after computrainer class last nite and you eff your legs for the rest of the ride. Smooth move ex-lax. 'Course, said buddy's not too bright, so whaddya want.

M

[Gummee!]

Just sayin



M

[Wadester]

Just sayin'.........

[Gummee!]

M

[Aurelius]

Originally Posted by Wadester

Just sayin'.........

[ducnut]

Originally Posted by Aurelius

No, you've got things exactly reversed. Flattening the top tube would make it LESS resistant to torsional loads. See 2.4: 'Selection of Shapes for Torsional Loading'

https://engineering.purdue.edu/~ahva...sion_Guide.pdf

While I admire your reference material, we're talking CF, where one would have to consider layup practices. Secondly, the torsion they're referring to is in twisting the length of the member, stationary supported, at both ends. We're talking about torsion in a bicycle frame, not an individual tube, and CF, not steel.

Dude, you really take things too far.

Originally Posted by Aurelius

I don't doubt that smaller companies can build products of equal quality, but because the 'formula' for designing the most efficient frames has been so thoroughly explored and refined, and because so much of the design and testing is done using the same software, one manufacturer shouldn't end up with markedly different results than another.

Profit margins.

[Aurelius]

Originally Posted by ducnut

While I admire your reference material, we're talking CF, where one would have to consider layup practices. Secondly, the torsion they're referring to is in twisting the length of the member, stationary supported, at both ends. We're talking about torsion in a bicycle frame, not an individual tube, and CF, not steel.

Dude, you really take things too far.

Naw, if I'd taken it too far, I would have pointed out that what you're referring to more closely approximates lateral deflection rather than torsion, and in either case you'd be wrong. Feel free to do some googling of your own. I've done enough structural engineering coursework not to need to.

[ducnut]

Originally Posted by Aurelius

Naw, if I'd taken it too far, I would have pointed out that what you're referring to more closely approximates lateral deflection rather than torsion, and in either case you'd be wrong. Feel free to do some googling of your own. I've done enough structural engineering coursework not to need to.

Yes. Lateral deflection of the toptube and torsion of the entire frame.

The rest, we'll agree to disagree.

[Gummee!]

In the 'I don't think I've ever seen anything sadder' category

Strava Terrorist

M

[RxZ]

Originally Posted by Gummee!

In the 'I don't think I've ever seen anything sadder' category

Strava Terrorist

M

I'm pretty sure that is satire..... pretty sure.

Ingenious either way

[ducnut]

Originally Posted by Gummee!

In the 'I don't think I've ever seen anything sadder' category

Strava Terrorist

M

[pierce]

Originally Posted by Wadester

Just sayin'.........

ROTLMFAO!!!

[Gummee!]

2hrs on the mtn bike today. Since my buddy has a Garmin he can tell me that we averaged 5mph. :lol

Can you say 'toodle?' I can. The goal for the day was to not break a sweat. Pretty well managed that.

I was out scouting trails for the hash I'm haring on Dec 23rd if any of y'all wanna come out to Nokesville and run (yes, I said run) thru my local patch of woods.

M

[Aurelius]

Originally Posted by pierce

ROTLMFAO!!!

I SO want one of those T-shirts! Who's selling them?