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fluider Added a reply to Kinematics
11/15/2023 2:50am My estimate is this: Intend/WRP freewheel cranks have the same behaviour regarding the pedal-kickabck because freewheel is only moved elsewhere, but WRP si better asi it uses sprag clutch instead of ratchet and pawls. But it'll behave the same as freewheel in a rear wheel. Moreover, they cause worse shifting performance in no-pedalling mode as the chain is being pushed...
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fluider Added a reply to MTB Tech Rumors and Innovation
11/11/2023 4:45am I don't know how differently to say it so it'll be my last attempt. Term "Anti-Squat" as defined in current vehicle dynamics for example in Tony Foale's book or propagated by Dave Weagle, means suspension reaction to tendency to squat under chain tension. I repeat chain tension. If you don't pedal then there's no "anti squat". AntiSquat graphs behind the...
fluider Added a reply to MTB Tech Rumors and Innovation
11/9/2023 3:41am AntiSquat is reaction of suspension to compression induced by acceleration. On chain driven drivetrain you have to include chainline into diagram. That's why it occurs only when you're pedalling. If you are just cruising it doesn't occur and you can feel only pedalkickback.
fluider Added a reply to MTB Tech Rumors and Innovation
11/9/2023 3:04am AS happens ONLY while you're pedalling. It happens only when chain is tensioned to propel you forward. Do you pedal, or at least start pedalling in the middle of rear suspension travel? I doubt.
fluider Added a reply to MTB Tech Rumors and Innovation
10/23/2023 12:04am Did that hub have some mechanical problems inherent from its design? Like planetary gears breaking or something like that. I saw the Orings should be checked and replaced, and cone nuts tightened correctly.
fluider Added a reply to MTB Tech Rumors and Innovation
10/22/2023 12:39pm I found it. BSD Revolution Hub, it uses small planetary clutch.
fluider Added a reply to MTB Tech Rumors and Innovation
10/22/2023 12:06pm Yes. This video of theirs is much usefull as it shows the mechanism disengages pawls. Genuinly clever idea. The length of freecoasting is amazing. https://www.instagram.com/p/CxdqbPUPgUm/ The mechanism I saw just a few days works the same way - there's triangular plate that pushes into pawls by its rotations and make them pop down from engangement position hence preventing them from...
fluider Added a reply to MTB Tech Rumors and Innovation
10/22/2023 11:13am Sprag clutch of larger diameter has larger torque capacity and doesn't suffer from behaving like spongy because on larger diameter there are more sprags to transmit the torque. I have built sprag clutch hub on 30mm axle which is one grade higher than Onyx Classic sprags and the spongy feeling is very very little. It appears only at start from...
fluider Added a reply to MTB Tech Rumors and Innovation
10/22/2023 10:29am And Onyx is spongy because they chose low torque clutch in the name of weightweenism.
fluider Added a reply to MTB Tech Rumors and Innovation
10/22/2023 10:25am They say Shogun Silent allows for 5.5° play, not that it allows backward rotation. There is but one BMX brand that offers ratchet and pawl hub with simple mechanism that literally disengages pawls by pushing them down when rotating the sprocket back and absolutely allows riding backwards without having to backpedalling.
fluider Added a reply to MTB Tech Rumors and Innovation
10/11/2023 6:30am Or they're trying to get rid of them before the new MZ 38 lands as it'll surely be cheaper.
fluider Added a reply to MTB Tech Rumors and Innovation
10/9/2023 9:35am What must be loudly said about SRAM is they easily provide technical specifications documents regarding their products from which one can deduce standard specs like Boost while Shimano hardly specs any technical drawings.
fluider Added a reply to MTB Tech Rumors and Innovation
10/4/2023 2:45am It's very interesting case study. Unfortunately, no big boy of America the Great is courageous enough to do things like this. Still, anyhow it's interesting, it doesn't help to solve the biggest task of front suspension and that is preserving the front center geometry.
fluider Added a reply to MTB Tech Rumors and Innovation
9/26/2023 11:50pm Is that a Vorsprung shock, as well?
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fluider
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fluider Added a comment about bike check MYOTRAGUS Dorothea DH
1/8/2023 11:51am
At this gallery, there's single-crown fork (and Pinion). I hope they are aiming for small batch production. https://www.instagram.com/p/CjtCY1FjNH-/?hl=en
This bike check has 14 comments.