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Thread: Inexplicable bike products
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03-23-2023, 12:33 PM #126
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03-23-2023, 12:35 PM #127
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03-23-2023, 12:42 PM #128Registered User
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Every time O-Chain is brought up, the comments section love to point to that hand-wavy math. That's all well and good, except that where O-Chain helps is when you're braking hard on rough sections of trail. So your wheel is not rotating or is moving very slowly relative to bike speed. And no, having a low engagement hub doesn't do the same thing, because when that hub does finally engage, it's a hard metal on metal stop, not a dense rubber-dampened stop. No one is saying that every casual rider needs to put an O-Chain on their bike. But it does provide a meaningful affect for bikes with certain suspension kinematics, riding steep, rough trails.
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03-23-2023, 12:48 PM #129
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03-23-2023, 01:01 PM #130
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03-23-2023, 01:17 PM #131
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03-23-2023, 01:47 PM #132Registered User
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Eh, having done back to back tests with mine, I'd describe the feeling as whatever the hub feels like, plus extra slop/cush on top. A low engagement Roval pawl hub and the 9 degree setup felt pretty awful when you were trying to pedal out of corners, but felt ok with a Hydra. Hydra with 6 degree elastomer feels like a DT with 54t, except that you always get the play on first pedal stroke, and the end of the play is more muted.
Really though, I think people are overlooking how much a bike's suspension kinematic affects things, as opposed to hub engagement. On my GG which has really high PK, the O-chain felt much better. On my Nomad 6, which has a few degrees less PK (especially deeper in travel), I'm not feeling the need to use it. I'm hanging onto it though, and might install it when I go up to the bike park in the summer.
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03-23-2023, 03:52 PM #133
Ah, yeah, I meant the difference in suspension performance would be almost imperceptible. Seems like the O-chain probably irons out any minor perceptible differences in kickback that you might feel between different hubs?
Regardless, the whole pedal kickback thing is certainly an upside of a lot of the bikes using idlers - most of them have super low kickback numbers.
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03-23-2023, 06:55 PM #134
You guys see that new sram drivetrain?
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03-23-2023, 07:26 PM #135
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03-23-2023, 08:30 PM #136one of those sickos
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ride bikes, climb, ski, travel, cook, work to fund former, repeat.
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03-23-2023, 08:35 PM #137
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03-23-2023, 08:39 PM #138
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03-23-2023, 09:07 PM #139
I did actually crack a frame once by doing (more or less) that. Chucked the bike on an air gone wrong. I landed upright, but the bike bounced weird and got under me, so I basically landed on the rear end of the bike with it sideways.
Old school 105 derailleur was fine. Steel chainstays bent and cracked.
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03-24-2023, 09:43 AM #140
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03-24-2023, 09:47 AM #141
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03-24-2023, 09:55 AM #142
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03-24-2023, 11:41 AM #143
Yeah I used to run 105s on my Super 8 and V10 back in the day often with a road cassette. Not only were they short cage but the spring was way stronger than MTB derailleurs. Those would only last a few days at whistler before the spring in the lower cage self destructed. The 105 seemed to last forever.
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03-24-2023, 01:00 PM #144
If you are anticipating the kickback it is less likely to throw you than if it is a surprise, no? That is, if you already have a good buffer in place with the O?
My Spire has pretty low PK but I also tend to descend in a high gear which heavily mutes PK... and my EH/Enduro wheelset has 10deg engagement.Originally Posted by blurred
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03-24-2023, 02:00 PM #145
I haven't ridden a modern suspension bike where I felt like the kickback was throwing me. Maybe a little bit in weird situations where I hit a big compression in my easiest climbing gear, but that's not really my concern. It's mostly just that kickback interferes with the suspension movement and makes the suspension feel worse.
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04-10-2023, 11:47 PM #146Registered User
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04-11-2023, 06:30 AM #147Not a skibum
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^^ You did check the date that was released right
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04-11-2023, 08:17 AM #148
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04-11-2023, 08:25 AM #149
Seth reviewed an inexplicable product today.
https://youtu.be/apyTlND9Cuo
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04-11-2023, 09:31 AM #150Registered User
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