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ERGue Added a reply to MTB Tech Rumors and Innovation
12/31/2023 4:21pm The CC links are designed to produce a higher leverage rate increase over stock (more progressive) which in my mind would result in less stress on the frame. The trade off would be more work is required of the damper due to higher shaft speeds, however since the bottom out events are less harsh with more progressive curve, the damper...
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ERGue Added a reply to Vital MTB Bike of the Year
12/31/2023 9:25am The Trek HP Slash looks like the bike of the year to me. It represents everything about Mountain Biking that is awesome. This is the bike that would generate the most smiles per miles if one were able to spend a summer in a spot like Whistler and split their time between riding the park and the surrounding network of...
notthatbryan Liked a reply to forum topic MTB Tech Rumors and Innovation
12/30/2023 5:31pm You seem to be passive aggressively attacking them, no wonder they are defensive. Man up and plainly state your issue or STFU.
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Onawalk Liked a reply to forum topic MTB Tech Rumors and Innovation
12/14/2023 5:28am Do we? How bout' this -Inverted (clearly) -39mm lowers -147-176mm travel adjustable in 7mm increments, done internally, can only be done at Push's shop -CNC'd CSU, that are bonded to the upper tubes using loads of good intentions -HSC, 47 clicks -LSC 3 clicks -HSR, 9.7 clicks -LSR only adjustable internally, requires several model specific tools, like a 10mm socket (you know yours is mssing) easier to send to Push -Axle made of unobtainium, with a special 7 sided octagonal design said to increase torsional stiffness by 36.89% over previous model, with proprietary axle sizing, to fit readily available 120mm...
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Jakub_G Liked a reply to forum topic MTB Tech Rumors and Innovation
11/28/2023 9:36pm Is the rebound statement part your own theory or something you can back up? Because common theory of HBO is pretty clear in that it offers added rebound damping in the same part of the travel where it ads compression damping(it takes force to disengage cone from the cup), which is considered nice bonus when you get that deep into stroke.
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ERGue Added a reply to Let's Talk Axle Path
11/15/2023 9:58pm So while we wait for you to do an entry level shock comparo is it safe to assume that High Pivots (because they have inconsistent rear centers) require factory level shocks with lots of LSC in order to ride good?
TEAMROBOT Liked a reply to forum topic Let's Talk Axle Path
11/15/2023 9:11pm I hope the bias in my conclusion was glaring, because I tried to spell it out as clearly as possible. I had an expectation for the Deviate and, to my surprise, that expectation wasn't met when I rode it. I'd love to ride it with an entry level shock to see how the axle path feels with less damping and more suspension bob.
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ERGue Added a reply to Let's Talk Axle Path
11/15/2023 6:37pm So what you are saying is that you need to ride the Deviate with an entry level shock. Sorry the bias in your conclusion is glaring. Basically you are saying that the undesirable kinematics that you expected from the Deviate didn't occur so it must be because of the shock, not because your expectations were incorrect........
TEAMROBOT Liked a reply to forum topic Let's Talk Axle Path
11/15/2023 6:25pm Yeah, great question. It really surprised me, but the axle path of the Deviate and Trek were basically a non-issue for me during testing. There was never a time when I was testing either when I thought the rear axle path was magical or terrible. I had some theories about what I was expecting to feel on both bikes, and didn't feel it. The Deviate is a much more rearward axle path than the Trek by the way, the Trek is more of a "mid pivot" have-your-cake-and-eat-it-too design. What I expected to feel on the Trek and especially the Deviate...
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carlinojoevideo Liked a reply to forum topic Let's Talk Axle Path
11/15/2023 6:23pm I'm all in on the reward axle path half way through travel, then back to 0 at full travel. I think this is the best of both worlds if you get your dynamic sag and average position correct, you use the best of the axle path. Trek Session Commencal V5 Frameworks Crestline RS205 Atherton AM200 *I'm going to assume the new Intense M1 will be close to this. Here is an average axle position from a run at Killington during the US Open on Supreme V5. The average ride was between 40%-90%, This window has 4-5mm of reward axle path...
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TheSuspensionLabNZ Liked a reply to forum topic Kinematics
11/14/2023 5:29am Yeah thats pretty accurate, basically the amount of AS made up by the chain is what gives a bike its pedal kickback. A bike I notice this a lot in is the current Enduro - historically Specializeds FSR bikes (note: this is a spesh thing, not a horst link thing) have low anti squat & anti rise figures but with some recent models they have used the chain tension to increase AS and it results in higher pedal kickback but still has low AR numbers. High pivot bikes naturally have more anti squat so don't need much chain effect, in...
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gibbon Liked a reply to forum topic Kinematics
11/14/2023 5:23am
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AgrAde Liked a reply to forum topic Kinematics
11/14/2023 5:23am Also worth mentioning is things like the Trust forks. They have significant anti-dive. I spent a while riding a craftworks ENR high pivot bike with a Trust Shout on the front. The braking performance of that bike was fucking insane. https://www.vitalmtb.com/community/AgrAde,35595/setup,40730
This forum topic has 296 replies.
AgrAde Liked a reply to forum topic Kinematics
11/14/2023 5:19am Kinda/kinda not. There are two entirely separate effects at play that can be described as AS, and bike designers account for both effects to give a total amount of AS. Only one of which having anything to do with the chain. Those are described in the op... Kickback is basically the "equal and opposite reaction" part of the chain tension AS which is exceedingly simple: chain pulls wheel to extend suspension. Therefore wheel also pulls chain when it compresses suspension. Which it sounds like you have a solid understanding of. The other type of AS is just inherent to the...
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SteveClimber Liked a reply to forum topic MTB Tech Rumors and Innovation
11/12/2023 7:12am
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Primoz Liked a reply to forum topic MTB Tech Rumors and Innovation
11/9/2023 9:33pm Antisquat is the reaction of a driven wheel to the driving torque, caused by the suspension geometry (and chain in chain driven systems). Squat is caused by the weight transfer because of the acceleration applied to the vehicle. Again, pedal kickback is not caused by antisquat, it is caused by the chain lengthening going through the travel. And it is this lengthening of the chain that is part of the antisquat characteristic. As you pull on the chain (pedalling and driving the rear wheel) you oppose this lengthening of the chain and usually pull the suspension out of the travel...
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Primoz Liked a reply to forum topic MTB Tech Rumors and Innovation
11/9/2023 9:31pm Antisquat is caused by the chain length changing through the travel and the suspension geometry (in both cases the effect is either positive or negative). With the chain portion of the antisquat it can be connected to pedal kickback. And it can also bind the rear suspension, even more so with modern clutch derailleurs. Even if the sprocket on the crank can rotate freely (no pedal kickback and also no pedalling function possible) the suspension will still be bound as lengthening the chain through the derailleur cage requires a lot of force when done by lengthening the chainstay (bad mechanical...
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fluider Liked a reply to forum topic MTB Tech Rumors and Innovation
11/9/2023 9:29pm 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.
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AgrAde Liked a reply to forum topic MTB Tech Rumors and Innovation
11/9/2023 9:29pm IMO dropping AS off deep into the travel like Yeti does, or the majority of horst link bikes do, is pointless. You get pedal kickback when the rate that your suspension is compressing exceeds the pedal kickback rate. And if your suspension is compressing quickly enough at the very bottom of your suspension stroke to engage your freehub at that point, you have much bigger problems than feedback through your pedals. Your suspension is moving the fastest at the beginning of the hit, and the spring and damper is only going to act to slow it down from there. Bikes...
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Primoz Liked a reply to forum topic MTB Tech Rumors and Innovation
11/9/2023 9:27pm Without an idler antisquat and pedal kickback should be closely related. A drop off of AS deep into the travel means there will be less overall pedal kickback in deep stroke events. And lack of antisquat shouldn't be a major issue as you're bracing for and handling the impact in the part of the travel, not pedalling... I'm fairly certain 6bar systems make this much easier to achieve and is the strategy that yeti employs with the switch platforms (4 and 6 bar) - link switching direction of travel will cause a big drop in antisquat values as the axle...
This forum topic has 30444 replies.