***

« previous entry | next entry »
10.. Jun. 2024 | 10:53 pm
Skan: SALEM - I'll Fly With You / Forever Young

Darbs = Spēks reiz pārvietojums. Laiks tur neparādās. Tad kāpēc tik daudz ko mērām laikā, nevis pārvietojumā? Tik bieži dzirdu "Man nav laika", bet nedzirdu "Man nav kustības" vai "Man nav pārvietojuma". Un tad gadiem gaidām līdz kaut kas pakustēsies. Laiks ir tikai koncepts. Pēdējos mēnešus pavadu pārinterpretējot visu jaunā mērauklā - formā un pārvietojumā.

caļvedis | aplēst | Add to Memories

Comments {27}

shit's fucked up and bullshit

from: svešinieks
date: 19.. Aug. 2024 - 04:20 am
caļvedis

https://bicycles.stackexchange.com/questions/77163/shimano-rd-m5120-and-10-11-speed-compatibility/
The cable pull ratios of Shimano "MTB" 10 and 11 speed systems (called dyna-sys10 and dyna-sys11) are different. The pull ratio of 10 speed is 1.2 and the pull ratio of 11 speed is 1.1.
..
How the 10 and 11 speed compatible derailleurs are implemented: the cable pull ratio is set to 1.15.
..
Also, according to http://blog.artscyclery.com/science-behind-the-magic/science-behind-the-magic-drivetrain-compatibility/ the more accurate ratios are 3.9/3.6 = 1.0833 and 3.95/3.4 = 1.1618

https://www.reddit.com/r/bikewrench/comments/14oiw9a/shimano_pull_ratios_and_compatability/
Previously, we thought Dyna-sys 10s and Dyna-sys 11 were incompatible because the sources that were usually quoted listed Dyna-sys 10s pull ratio at 1.2 and Dyna-sys 11 as 1.12. If this were the case, then they would indeed be incompatible.
The problem with this is that the 1.2 figure was a published figure from Shimano. However, Dyna-sys 11's exact pull ratio was never published, and the 1.12 figure was measured experimentally from mechanics after it had already been released. We don't know if there were any differences in the way we measured the 1.12 figure and the way Shimano designed the 1.2 figure, or if it's possible they could have rounded the published ratio in some way (which wouldn't be unheard of).

Atbildēt