CascadeComponents
Profile picture for user CascadeComponents
About Me
https://cascadecomponents.bike/
We have developed a range of linkages that cater to aggressive riding in rough terrain by delivering more traction and more bottom out resistance. If you ride for the downs, look no further!

All linkages are fully CNC'd right here in Seattle, Washington USA.

Member Summary
Stories: 1
Followers: 4
Forum topics started: 1
Forum replies: 342
Comments: 48
Lives in:

Everett, WA, USA

Member Since:
9/18/2020
Recent Activity

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CascadeComponents Added a reply to MTB Tech Rumors and Innovation

12/13/2025 9:19am
I think the perceived smoothness of heavier vehicles more comes down to the weight of sprung mass compared to the weight of the rider/driver more than anything. You and your bike a plenty heavy and exert plenty of force in compression to not get bump jumped by even a heavy wheel assuming the suspension and tire pressure is reasonable and...
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CascadeComponents Added a reply to MTB Tech Rumors and Innovation

12/12/2025 8:30pm
While a more massive object requires proportionally more force to achieve a specific acceleration, it’s important to remember that in compression the thing imparting this force on the unsprung mass is extremely massive. The unsprung mass is going to get out of the way of whatever impact it encounters. Rebound is really the question.
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CascadeComponents Added a reply to Suspension Component Technology/Functionality Discussion

11/24/2025 2:14pm
Difficult: No. Dangerous: No. Expensive: Very. Machining it would require some custom jaws to clamp outward on the ID of the spring. You could then run passes along the outside of the spring to remove material. That would be expensive because of tooling and just paying someone to work it all out. The equation for the spring rate of a...
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CascadeComponents Added a reply to Syn.Bike and Linkage Design Help?

11/16/2025 7:31pm
I was wondering if that might be the case. If you assume the general shape of a leverage curve is defined, which is usually accurate if you’re looking at one particular layout, you can define two of the following: travel, initial leverage, and final leverage. In the example where the leverage curve is a line in the form of mx+b...
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CascadeComponents Added a reply to Syn.Bike and Linkage Design Help?

11/14/2025 8:16pm
When you say you are near where you want with leverage but needing a more linear rear end, what do you mean? Like is the initial or final leverage ratio where you want it but the amount of progression is not?
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beaverbiker Liked a reply to forum topic The Bikeconomics (Mega)Thread

10/31/2025 11:04am
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I'm an engineering manager in aerospace that spends a lot of time with customers at various DoD agencies. Can confirm that none of the people actually making decisions will ever go on a Podcast or any social media platform. The fact that he feels comfortable going on Joe Rogan and spewing all of that information just tells you that he is not privy to real information.
This forum topic has 5214 replies.

CascadeComponents Added a reply to Suspension Component Technology/Functionality Discussion

10/29/2025 2:04pm
What app is that? All the phone based ones I've messed with have been pretty bad so I gave up on them. As far as figuring out spring curves, it would probably be easier and more accurate to measure the shock's actual spring curve and then fit it to an equation to approximate the curve at any pressure. If you...
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CascadeComponents Added a reply to @Cascade Components - Homework Help

10/28/2025 10:30am
It's just an equation driven dimension on a line. The equation is (d/(l1-l2))*F where l1 is the initial shock length, l2 is a second shock length, d is vertical wheel displacement, and F is the axle load. This equation is an approximation of the actual leverage ratio. The smaller the difference between l1 and l2, the closer the approximation is...
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jma853 Liked a reply to forum topic @Cascade Components - Homework Help

10/28/2025 10:20am
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I checked with the professor today and it turns out the answer key accidentally used 425 instead of 465, which was what gave the incorrect answers. Due to the unclear diagram, any answer close to 155 and 178 should be accepted. 👍 Thanks for the help! Out of curiosity, how did you solve for the force through the shock in Solidworks?
This forum topic has 23 replies.

jma853 Liked a reply to forum topic @Cascade Components - Homework Help

10/23/2025 7:53pm
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Okay, after I redid it I got the same answer. I'm just as confused as you are as to why the diagram they gave us, which positions the rear axle below the chainstay pivot, is apparently drawn incorrectly according to the answer key. The diagram you sketched is correct according to the answer key, but at this point, I think it's probably fine to double-check with the professor to see if the answer key is wrong.
This forum topic has 23 replies.

CascadeComponents Added a reply to @Cascade Components - Homework Help

10/23/2025 7:53pm
The dimensions aren’t well drawn to be honest. What I did there is a graphical approximation of leverage ratio by the way. If you dimension the shock ever so slightly shorter (in this case 0.01 mm) and then look at the vertical displacement of the rear axle and divide that number by the difference in shock length it gives you...
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CascadeComponents Added a reply to @Cascade Components - Homework Help

10/23/2025 7:52am
This is what you get if you only account for the y component of the reaction force at the seat stay. If the rear axle were to be horizontal from the chain stay pivot that assumption holds, but in the case of it being offset, both the x and y components of the force contribute to the moment.
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CascadeComponents Added a reply to @Cascade Components - Homework Help

10/22/2025 11:43pm
The moment about the chain stay due to weight is correct at 82.5*465. The remainder of that equation needs to be for the seat stay. So you’d see things like 175/459.62 (similar triangles like you are using but for the seat stay).
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jma853 Liked a reply to forum topic @Cascade Components - Homework Help

10/22/2025 10:43pm
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Ahh, I forgot about the force vector being along the axis that connects the two pinned points. That's my bad. Thanks to your help, I actually have an answer now, which is a significant improvement compared to ~an hour earlier. I didn't expect you to reply at all since I posted this thread half jokingly, but I honestly appreciate it 👍
This forum topic has 23 replies.

CascadeComponents Added a reply to @Cascade Components - Homework Help

10/22/2025 10:10pm
The rear wheel force would be half the rider weight as described here. In the case of a member that’s pinned on both sides, the force vector is along the axis that connects the two pinned points. So the shock can only experience tension/compression. That makes the second question about the direction of the force through the shock easy. The...
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CascadeComponents Added a reply to @Cascade Components - Homework Help

10/22/2025 9:34pm
Start by finding the moment due to rider weight about the chainstay pivot on the front triangle. Since this is static, the sum of the moments about that point must be zero. This will allow you to find the reaction force at the seat stay. Remember since everything is pinned, the force can only be along the axis of that...
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