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Search: Posts Made By: smashndash
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Forum: Road Cycling
10-25-21, 01:00 PM
Replies: 34
Views: 771
Posted By smashndash

I like to keep myself sharp by doing cornering...

I like to keep myself sharp by doing cornering drills in a parking lot or low traffic road. The key is consistency, not speed. What you need is the ability to believe that you can execute *exactly*...
Forum: Road Cycling
10-25-21, 10:20 AM
Replies: 35
Views: 784
Posted By smashndash

Just looking at your build, I would say that,...

Just looking at your build, I would say that, unfortunately, you have a bunch of fairly expensive and fairly light components all leading upto a fairly light bike. There's no silver bullet here.
...
Forum: Road Cycling
10-25-21, 12:59 AM
Replies: 62
Views: 3,146
Posted By smashndash

I would go with the 28. I have a 25mm corsa...

I would go with the 28. I have a 25mm corsa control on my 23i rim and that tire has a carcass width of 70mm. The GP5k S has a 64mm carcass.

Too small of a tire = more sidewall cuts, more exposed...
10-21-21, 03:29 PM
Replies: 7
Views: 234
Posted By smashndash

Edit: ...

Edit:

https://cimg0.ibsrv.net/gimg/bikeforums.net-vbulletin/450x300/bb169ccc_8df1_4913_a61f_77ebf825a3c7_ee790c7dfb0328aea9d21fb2ab6db39abe7078e5.jpeg
oh interesting. This seems like it should...
Forum: Road Cycling
10-20-21, 12:48 PM
Replies: 24
Views: 969
Posted By smashndash

The thread is mostly tongue in cheek. Like I...

The thread is mostly tongue in cheek. Like I said, I'm in a glass house here. I'm a huge chump. But paying $1500 for a bar/stem that doesn't offer anything special seems a bit chumpier somehow....
Forum: Road Cycling
10-20-21, 11:13 AM
Replies: 24
Views: 969
Posted By smashndash

Well you can also be a chump due to opportunity...

Well you can also be a chump due to opportunity cost. Why is a wilier stem worth so much more than any of their competitors? Even enve, one of the most snobbish brands (at least, they used to be)...
Forum: Road Cycling
10-19-21, 07:11 PM
Replies: 24
Views: 969
Posted By smashndash

I knew inflation was happening but DAYUM

https://mygoods.com/wilier-stemma-stem-100-ramato/

1 BILLION USD for this stem.
...
10-18-21, 05:09 PM
Replies: 154
Views: 3,449
Posted By smashndash

Oo my turn. I think we'll see steering dampers...

Oo my turn. I think we'll see steering dampers within the next 20 years. We've been relying on geometry to stabilize the bike for a while now and MTBs especially are running up against how much...
Forum: Road Cycling
10-18-21, 07:57 AM
Replies: 83
Views: 5,748
Posted By smashndash

https://www.zoro.com/ruland-manufacturing-shaft-co...

https://www.zoro.com/ruland-manufacturing-shaft-collar-quick-clamp-1pc-6mm-alum-mqcl-6-a/i/G8383977/

They even make a QR version if you're a weight weenie and want to take off the collar after...
Forum: Road Cycling
10-15-21, 01:20 PM
Replies: 62
Views: 3,146
Posted By smashndash

Well, it wouldn't "negate" the differences. The...

Well, it wouldn't "negate" the differences. The BRR test favors larger tires because larger tires are firmer at the same pressure. So in this matchup, the old GP5000 has an unfair advantage because...
Forum: Road Cycling
10-15-21, 10:54 AM
Replies: 4
Views: 308
Posted By smashndash

I'd go as far as to say there are many rims that...

I'd go as far as to say there are many rims that are marked "tubeless ready" that are not safe for tubeless. See the following:

1) you need a bead shelf as mentioned
2) you need a bead lock or...
Forum: Road Cycling
10-15-21, 09:37 AM
Replies: 62
Views: 3,146
Posted By smashndash

https://www.bicyclerollingresistance.com/road-bike...

https://www.bicyclerollingresistance.com/road-bike-reviews/continental-grand-prix-5000-s-tr

Interesting. BRR measured the same-ish rolling resistance for a given pressure, but the tire has also...
Forum: Road Cycling
10-11-21, 12:18 PM
Replies: 20
Views: 807
Posted By smashndash

fair point. I forgot that physics forums are a...

fair point. I forgot that physics forums are a thing. I guess I'll look there. Thanks for the tip!
Forum: Road Cycling
10-11-21, 12:07 PM
Replies: 20
Views: 807
Posted By smashndash

Right. So that's my hypothesis as well. I think...

Right. So that's my hypothesis as well. I think we all know that cutting really hard causes a bike to slow down. It's no surprise that it might kill your angular momentum if it kills your linear...
Forum: Road Cycling
10-11-21, 11:59 AM
Replies: 20
Views: 807
Posted By smashndash

well... yeah. What makes you think I'm asking for...

well... yeah. What makes you think I'm asking for a simple answer?
Forum: Road Cycling
10-11-21, 08:53 AM
Replies: 20
Views: 807
Posted By smashndash

you definitely have to turn the bars to "catch"...

you definitely have to turn the bars to "catch" yourself. I never claimed anything about having to turn the bars to initiate the dive aka counter-steering.
Forum: Road Cycling
10-11-21, 08:49 AM
Replies: 20
Views: 807
Posted By smashndash

So you think that "catching" the fall results in...

So you think that "catching" the fall results in the bike going faster? What would be the mechanism for that? If anything, the front tire is applying a braking force (hence the term "scrubbing off...
Forum: Road Cycling
10-10-21, 08:24 PM
Replies: 20
Views: 807
Posted By smashndash

Physics question about turn-in

Nerdy question for anyone who might know about this stuff. When going in a straight line, the bike has no angular momentum in the roll axis. Once you initiate a turn, you start "falling" into it and...
Forum: Road Cycling
10-10-21, 01:05 PM
Replies: 25
Views: 989
Posted By smashndash

It's hard to tell even as someone with a bit of...

It's hard to tell even as someone with a bit of experience. I found an old TCR (like 20 years old?) for someone and went with them to inspect it. It seemed mostly fine. The alloy nipples were...
10-07-21, 10:34 PM
Replies: 111
Views: 3,609
Posted By smashndash

Running a chain past 0.5-0.75% increases the risk...

Running a chain past 0.5-0.75% increases the risk of snapping a chain. Not a huge deal if you're a small person putting out small watts. But if you value your safety, it's worth it.
10-07-21, 03:48 PM
Replies: 111
Views: 3,609
Posted By smashndash

I'll also add that many people are using...

I'll also add that many people are using unnecessarily sticky lubes for their bikes. I initially used basic Finish Line Dry Teflon tube and that gunked up like crazy. Probably also because I never...
10-07-21, 10:52 AM
Replies: 32
Views: 762
Posted By smashndash

This works really well IMO. I'll do it...

This works really well IMO. I'll do it shamelessly if it lets me put down more power with more confidence. It works best for off camber turns where your speed is fairly low so you need to pedal hard...
10-07-21, 09:05 AM
Replies: 32
Views: 762
Posted By smashndash

Fair enough. I'm very hesitant to accept...

Fair enough. I'm very hesitant to accept compliments because I'm not actually very fast or successful in racing. The idea of being in the top 1% of anything is a little weird. But I guess I'll wear...
10-07-21, 07:11 AM
Replies: 32
Views: 762
Posted By smashndash

I don't know about this. As 63rickert said, it's...

I don't know about this. As 63rickert said, it's pretty common for trackies. Maybe I just hung around some hitters but I know at least one other guy who could easily match my rpms. But he also went...
10-06-21, 08:25 PM
Replies: 32
Views: 762
Posted By smashndash

You need to be somewhat careful with this...

You need to be somewhat careful with this technique. It lets you go way faster, way more confidently. But if your vision isn't great, you might miss debris/sand in the road while looking too far...
10-06-21, 08:13 PM
Replies: 32
Views: 762
Posted By smashndash

I might be a bit of a freak. I can hit 200rpm...

I might be a bit of a freak. I can hit 200rpm seated. Put down useful power at 150 or so. Out of the saddle my peak power is at 130rpm (see username)

Needless to say, I don't need anything bigger...
10-06-21, 09:32 AM
Replies: 32
Views: 762
Posted By smashndash

If you're going 40mph through a turn and there's...

If you're going 40mph through a turn and there's even a remote chance that you might clip the pedals... don't pedal. No amount of power you could (safely) put down through that turn for 1 second is...
Forum: Road Cycling
10-04-21, 05:32 PM
Replies: 62
Views: 3,146
Posted By smashndash

Oh sure. I guess I'm only speaking from an aero...

Oh sure. I guess I'm only speaking from an aero perspective because RR differences on a steel drum between tire sizes have been shown to be negligible. BRR has a great article on this. A bigger tire...
Forum: Road Cycling
10-04-21, 04:35 PM
Replies: 62
Views: 3,146
Posted By smashndash

"This wheel is optimized for 25mm tubeless tires...

"This wheel is optimized for 25mm tubeless tires for all out speed. The 454 NSW features Zipp’s most advanced technologies."

Might just be the 454 then.

edit: "The big change on this latest...
Forum: Road Cycling
10-04-21, 04:27 PM
Replies: 62
Views: 3,146
Posted By smashndash

"optimized for 28" does not inherently mean...

"optimized for 28" does not inherently mean "slower with 25". It simply means they use a 28mm tire as a reference when tuning the shape. Narrower tires tend to dominate wider ones in aero tests. Ie...
Forum: Road Cycling
10-04-21, 04:15 PM
Replies: 62
Views: 3,146
Posted By smashndash

Right seems like I made a hasty assumption....

Right seems like I made a hasty assumption. interesting how 2 rims of the same width are optimal for different tire sizes. Or maybe the 303S is more aero with 25s but they simply didn't test them...
Forum: Road Cycling
10-04-21, 03:28 PM
Replies: 62
Views: 3,146
Posted By smashndash

I know I'm definitely getting sucked into some...

I know I'm definitely getting sucked into some confirmation bias but I did not like what I saw at paris-roubaix. Groupama and movistar were sliding all over the place. The groupama train lowsided and...
Forum: Road Cycling
10-04-21, 12:39 AM
Replies: 23
Views: 833
Posted By smashndash

I think tge BBInfinite will be a lot better....

I think tge BBInfinite will be a lot better. Please post back after a couple thousand miles and let us know if the bearings still spin
Forum: Road Cycling
10-02-21, 06:09 AM
Replies: 23
Views: 833
Posted By smashndash

I went through 2 praxis BBs (one for M30, one for...

I went through 2 praxis BBs (one for M30, one for shimano) that got rough EXACTLY like yours. I don't know if it's their sealing system or if their bearings are just garbage. All I know is that I...
Forum: Road Cycling
09-30-21, 02:47 PM
Replies: 62
Views: 3,146
Posted By smashndash

New GP5000 S TR coming soon

https://cyclingtips.com/2021/09/spotted-continental-has-a-new-tubeless-gp5000-and-its-everywhere-at-roubaix/

Hold off on buying new tires, especially if you use hookless rims. If Ineos is willing...
Forum: Road Cycling
09-28-21, 04:17 PM
Replies: 55
Views: 2,418
Posted By smashndash

a) no, the SL7 has a threaded BB at all levels ...

a) no, the SL7 has a threaded BB at all levels
b) no, S-Works bikes using pressfit (or threaded) BBs indicates diddly squat about the superiority of the technology. As evidenced by point a.
...
Forum: Road Cycling
09-27-21, 05:53 PM
Replies: 10
Views: 663
Posted By smashndash

My hybrid came with 13mm rims. I put a 2.1" mtb...

My hybrid came with 13mm rims. I put a 2.1" mtb tire on the front. Tried driving to a trailhead and the exhaust from my car burned a hole in the sidewall. I stuck some bubblegum and a dollar bill...
Forum: Road Cycling
09-26-21, 07:43 PM
Replies: 22
Views: 1,086
Posted By smashndash

wait. they make a 32mm tanwall pro one now? And...

wait. they make a 32mm tanwall pro one now? And with a tanwall???

I need to up my mileage.
09-23-21, 03:29 PM
Replies: 79
Views: 2,425
Posted By smashndash

hm. Just based off the abstract it seems that I'm...

hm. Just based off the abstract it seems that I'm talking about translaminar fracture of UD structures under tension. That's probably the closest I'm gonna get to seeing a fatigue test of raw CF.
...
09-23-21, 10:10 AM
Replies: 79
Views: 2,425
Posted By smashndash

Right, I'm personally unsure whether raw CF has a...

Right, I'm personally unsure whether raw CF has a fatigue limit. I was sorta saying that because even if raw CF has a high fatigue limit, it's irrelevant because raw CF is pretty much never used....
Forum: Road Cycling
09-22-21, 08:28 PM
Replies: 55
Views: 2,418
Posted By smashndash

Um. What. That is literally my entire point. That...

Um. What. That is literally my entire point. That carbon frames suck. And the ease of service of threaded BBs allows them to get away with continuing to make crappy carbon frames. Metal frames are...
Forum: Road Cycling
09-22-21, 07:59 PM
Replies: 55
Views: 2,418
Posted By smashndash

Hm. How many of those were carbon road bikes?...

Hm. How many of those were carbon road bikes? Just curious.

The things that make pressfit BBs not last long can happen with threaded BBs too. I'm just saying we need to be wary of bike...
Forum: Road Cycling
09-22-21, 07:46 PM
Replies: 55
Views: 2,418
Posted By smashndash

I think the whole "easy to work on" angle of...

I think the whole "easy to work on" angle of threaded BBs is a false flag. It normalizes the idea that the BB is supposed to wear out every 2000 miles or so and you're supposed to get a new one and...
09-22-21, 08:53 AM
Replies: 79
Views: 2,425
Posted By smashndash

I think the confusion stems from the fact that...

I think the confusion stems from the fact that "carbon fiber" doesn't refer to carbon fiber. It refers to CFRP, which is, materially, VERY different from carbon fiber. As Zinn mentions, there are...
Forum: Road Cycling
09-14-21, 06:20 AM
Replies: 55
Views: 2,418
Posted By smashndash

Nah. Pretty much all specialized road bikes upto...

Nah. Pretty much all specialized road bikes upto 2019 or 2020 used BB30. It works pretty decently if you use a non-BB30 crank + a good BB. For example, I have a Hambini BB + shimano crank on my BB30...
Forum: Road Cycling
09-13-21, 04:54 PM
Replies: 55
Views: 2,418
Posted By smashndash

For a metal bike, sure. Jan Heine also makes the...

For a metal bike, sure. Jan Heine also makes the same "planing" argument where he claims that the springiness of a flexy metal bike will allow you to go faster. But we can agree that the optimal race...
Forum: Road Cycling
09-13-21, 02:33 PM
Replies: 16
Views: 704
Posted By smashndash

Btw for anyone curious about LB wheels, we have a...

Btw for anyone curious about LB wheels, we have a huuuge thread on this subforum called "Light Bicycle Wheels"

https://www.bikeforums.net/road-cycling/1155967-light-bicycle-wheels.html
Forum: Road Cycling
09-13-21, 08:44 AM
Replies: 55
Views: 2,418
Posted By smashndash

It seems that you have a pretty nuanced grasp of...

It seems that you have a pretty nuanced grasp of the situation. Pressfit vs threaded is not what determines the quality of a bottom bracket. Just like how frame material doesn't determine the quality...
Forum: Road Cycling
09-11-21, 07:21 AM
Replies: 5
Views: 247
Posted By smashndash

the race A evo4 seems to have more reviews. And...

the race A evo4 seems to have more reviews. And they're positive. To be fair, I was quite content with the D until I started running into grip issues, which is my #1 priority in a tire.
Forum: Road Cycling
09-11-21, 07:12 AM
Replies: 5
Views: 247
Posted By smashndash

They are the least supple tires I have ever seen...

They are the least supple tires I have ever seen in my life. Even compared to gatorskins. But they're not slow. It's like riding a rigid tire, basically. They soften up a little with use but...
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