[slyfink]

I looked for a thread to put this in, but couldn't find a good place for it...

anyone see the bottom-out videos over on PB?

https://www.pinkbike.com/news/video-32-bikes-bottomed-out-in-ultra-slo-motion-1000-fps.html

I find it interesting that on most full-sus bikes, the shock seems to bottom out in a two step process. It seems to compress initially by 80-90%, and then goes on to full compression. I wonder if that has something to do with the shock tunes, or whether it's simply that bike and body hit the ground first, and then ass comes down as heels drop for the final compression... I also wonder if that has any real-world impacts.

 

[UnusualBread]

Not sure, but it seems to come from the tire compressing/rebounding.

 

[HardtailHack]

Is the clutch dead on the Trance near the end? It looked to behave worse than the one on the hardtail.

What sort of crank was the one that snapped?
EDIT- Praxis it would seem-

Snapped carbon crank

Hi all, has anyone had any issues with breaking carbon cranks on their e-bikes? I have a new 2019 S-Works and within the first 20 mins of riding it, for the very first time, the end snapped off the end of the crank following a minor pedal strike. I was riding up a mild gradient that was winding...

www.emtbforums.com

 

[Kanye West]

Initial compression is from the sprung mass of the bike and the lower legs of the rider coming down with a lot of energy, then there's the settling of the upper leg and upper body mass joining the rest of the bike.

The human body moves at one frequency. The bike moves at another.

 

[Bikael Molton]

Haaaaa that photo is gold!

Is the clutch dead on the Trance near the end? It looked to behave worse than the one on the hardtail.

What sort of crank was the one that snapped?
EDIT- Praxis it would seem-
View attachment 169999

Snapped carbon crank

Hi all, has anyone had any issues with breaking carbon cranks on their e-bikes? I have a new 2019 S-Works and within the first 20 mins of riding it, for the very first time, the end snapped off the end of the crank following a minor pedal strike. I was riding up a mild gradient that was winding...

www.emtbforums.com

 

[Fool]

What's this, another concept they glurked from Vital?

 

[ChrisRobin]

If you focus on the bar ends when buddy bottoms out, you can see them move around a lot relative to the stem. Goddam.

 

[Kanye West]

You'll notice the 35mm bars on the Spire didn't budge at all around the 2:15 mark....

If you want to see the bars flex in person, turn the front wheel 90 degrees and press up and down towards the top tube. Noticeable and measurable difference in that gap.

 

[slimshady]

You'll notice the 35mm bars on the Spire didn't budge at all around the 2:15 mark....

If you want to see the bars flex in person, turn the front wheel 90 degrees and press up and down towards the top tube. Noticeable and measurable difference in that gap.

I told this story before, but 4 years ago I was beta testing a 35mm bar for a local brand. I went back and forth between it and my standard issue 31.8mm Race Face Atlas, which I had previously considered a stiff bar.

I drew a couple of quick conclusions after several 4 feet drops:

- I decided to stay with the 35mm bar and don't look back. The Atlas flapped like a drunken bat in comparison.
- The compliance I previously attributed to my fork came actually from the handlebar.

 

[slyfink]

Speaking of flexy bars... (this is my own thread, I feel entitled to derail it!)... I opted to try and run a 35mm aluminum Chromag bar after witnessing my buddy crack a carbon bar on a flow trail last year... (granted it was a. either a knock-off or factory reject, and b. at least 15 years old. yes my buddy was a dumbass for even running it)

But the aluminum bar is waaaay too stiff. So I'm thinking of giving a OneUp bar a try. Anyone have experience with those?

 

[6thElement]

The OneUp is supposed to be more compliant, not tried it myself but it's likely what I'd go for.

The alloy 35 Kona bars I had on a bike were like a scaffolding pole, the carbon e13 I got last year on a different bike are only slightly better.

 

[slyfink]

The OneUp is supposed to be more compliant, not tried it myself but it's likely what I'd go for.

The alloy 35 Kona bars I had on a bike were like a scaffolding pole, the carbon e13 I got last year on a different bike are only slightly better.

yeah, that's why I'm thinking of getting them. Looking for a bit more comfort on the wrists, but hoping to not be taking my life into my hands with a carbon bar....

 

[mykel]

Interesting.
I love my Syntace vector carbon bar in 31.8, so I would be interested in how the 35mm version compares. Other than that the One-Up would be top of the list.

 

[HardtailHack]

I told this story before, but 4 years ago I was beta testing a 35mm bar for a local brand. I went back and forth between it and my standard issue 31.8mm Race Face Atlas, which I had previously considered a stiff bar.

I drew a couple of quick conclusions after several 4 feet drops:

- I decided to stay with the 35mm bar and don't look back. The Atlas flapped like a drunken bat in comparison.
- The compliance I previously attributed to my fork came actually from the handlebar.

My 35mm Tune carbon bar was pretty damn flexy but that was part of the reason I bought it.
More sweep and flex didn't help my hand or shoulder at all so I went to a straighter stiffer carbon bar and I prefer it a heap.

 

[6thElement]

Interesting.
I love my Syntace vector carbon bar in 31.8, so I would be interested in how the 35mm version compares. Other than that the One-Up would be top of the list.

I had those on my trail bike for the last 4ish+ years, now moved over on to the fatty.