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Changing Angles

Skate blog on math and politics.

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Tag: Rake

Data2 Comments
Curfboard Model

Curfboard: a closer look

June 2, 2021September 9, 2021 Ⓐ

Curfboard is a simple but ingenious design, which shows that innovation can still happen in an oligopolistic, stale market. It would be better though if Curfboard’s marketing steered clear of speciousness and didn’t thus undermine its own reliability. Continue reading Curfboard: a closer look

DataLeave a comment

RKP – TKP: term pertinence

January 8, 2021September 10, 2021 Ⓐ

In this short post I want to explain why I think the terms “TKP” and “RKP” do not really tell us much about how trucks work. Continue reading RKP – TKP: term pertinence

MathLeave a comment

Truck geometry (open access)

November 17, 2020July 27, 2021 Ⓐ

Using logic, one can realize that every truck (with a single pivot) turns the same, regardless of rake or any other characteristic. This and a few other points about truck geometry are tackled in this post. Continue reading Truck geometry (open access)

MathLeave a comment
The actual graph of the lean to turn function (given also in the academic literature, but easily derived from basic euclidean axioms) for various pivot axis angles. The x-axis is the tilt of the deck (lean) and the y-axis is the rotation of the axle on the ground from rest.

Axle offset (aka rake): it doesn’t change axle turn

July 15, 2019October 28, 2021 Ⓐ

Here’s a couple of illustrations and a chart just to restate the obvious: tilt/turn is rake-agnostic. Continue reading Axle offset (aka rake): it doesn’t change axle turn

Math, Political economyLeave a comment

Axle offset (aka rake): urban myths and skate companies

July 7, 2019July 5, 2021 Ⓐ

The other day I was searching the internet about “rake” and speed wobbles and stuff and I stumbled upon Sabre’s webpage on “Truck Geometry.” It was a bit… messy. Continue reading Axle offset (aka rake): urban myths and skate companies

Math

Protected: Truck geometry

July 7, 2019July 20, 2021 Ⓐ

There is no excerpt because this is a protected post. Continue reading Protected: Truck geometry

Data1 Comment

Bennett axle offset (or “rake”)

April 7, 2019June 1, 2022 Ⓐ

Someone on facebook answered me that it’s 22mm, perhaps a tiny bit more. Continue reading Bennett axle offset (or “rake”)

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