Recent Activity
All
beachmtb Liked a comment about video Pivot Phoenix DH Bike with a Singlecrown and AXS Dropper for Enduro? Let's Go Racing - Episode 3
7/20/2021 4:55pm
i don´t get why more people isn´t doing this. I know why I am not doing it at the moment : money for a new bike. But this is amazing, and great video. thanks.
This video has 29 comments.
Ian Liked a comment about Feature $6,999 Pivot Phoenix Review - Vital's Summer of Downhill
7/19/2021 2:23pm The chainring is a Raceface chainring just flipped over so the chainline is correct. For anyone wondering
This feature has 13 comments.
Paco77 Liked a comment about video Pivot Phoenix DH Bike with a Singlecrown and AXS Dropper for Enduro? Let's Go Racing - Episode 3
7/15/2021 6:20pm
This is awesome. Interested to know why you didn't stick with the double crown fork though (since many people seem to be experimenting with them for enduro now)
This video has 29 comments.
beachmtb Liked a comment about Press Release Propain Introduces the All-New Rage CF
7/15/2021 5:48pm
This press release has 15 comments.
noeserdalt Liked a reply to forum topic MTB Tech Rumors and Innovation
6/3/2021 11:48pm
This forum topic has 30444 replies.
Big Bird Liked a reply to forum topic Freeride Battles - Fest Series Parts Ways with Darkfest
5/16/2021 1:59am The only thing that I can think of is Sam's build videos on his YouTube channel. Are they concerned that he's making too much off of those? Frankly, I'm often disappointed with the coverage of other Fest Series events. They show up out of nowhere, give a lackluster amount of coverage and then are gone.
This forum topic has 33 replies.
Richt2000 Liked a comment about Feature Nukeproof Giga Vs Mega Comparison
5/7/2021 9:37pm Yea exactly what I did. Its incredible.... and rode the giga as 275 and also a mega 290... giga 275 mulleted (in progressive mode) with a EXT storia... weapon!
This feature has 21 comments.
Eoin Liked a comment about Feature Nukeproof Giga Vs Mega Comparison
5/7/2021 9:37pm
This feature has 21 comments.
Goocha05 Liked a comment about Feature Nukeproof Giga Vs Mega Comparison
5/7/2021 9:36pm
This feature has 21 comments.
iceman2058 Liked a comment about bike check ARBR RB2
4/30/2021 1:12pm
This bike check has 12 comments.
Having ridden 3 of these, one with Fox Float X2, this bike and one with DPX2, the rear feels incredibly plush (much better than my Enduro bike). Absolutely no compliance issues. The bike is a dream to ride and you feel comfortable on it after just one corner. Quick too!
Votes:
This bike check has 12 comments.
This bike check has 12 comments.
Primoz Liked a reply to forum topic How stiff are dual crown forks?
4/16/2021 7:26pm There are many ways to model joints, with revolute joints you can for example add stiffnesses and dampings, friction, clearances, etc. But you often need some more data, measurements or experience to choose the correct parameters to model it. Ideally you'd have all of those, so you can prepare a model based on a real life state and then adapt it to a different product for example. Yet once again I don't have access to that data, sadly... Plus I'm not versed enough in FEA (yet) to be comfortable doing that kind of stuff. Anybody can make pretty colors, the...
This forum topic has 46 replies.
Primoz Liked a reply to forum topic How stiff are dual crown forks?
4/16/2021 1:35pm That would be a no. As I've mentioned in the original post, all the joints, except the outer-to-stanchion, use a bonded setting, meaning it's almost like a single part. So none of the pressfits in the crown, screwed dual crowns, etc., are covered. Not ideal, but it's the same across all variants, so there is some stability there. The reason for this is that I do not have any engineering and manufacturing data to be able to determine the interference fits, which could influence on the stiffness too (with the fit opening up a bit under high loads for example)...
This forum topic has 46 replies.
justinc5716 Liked a reply to forum topic How stiff are dual crown forks?
4/15/2021 8:01am The idea of torsional compliance being good is strongly misguided. Sure you are providing a means of isolation for some side impacts on the tire, but remember that these impacts are now imparting a directional change to the tire rolling axis. The result is that body inputs and extra steering inputs are needed to keep the bike upright and on-course. Its not actually a win-win. Furthermore, any intentional steering inputs will now be delayed. This creates something called a phase lag in the dynamic system, which degrades control-ability. I could dive into this in painful mathematical detail, but please just...
This forum topic has 46 replies.
justinc5716 Liked a reply to forum topic How stiff are dual crown forks?
4/15/2021 8:01am The idea of torsional compliance being good is strongly misguided. Sure you are providing a means of isolation for some side impacts on the tire, but remember that these impacts are now imparting a directional change to the tire rolling axis. The result is that body inputs and extra steering inputs are needed to keep the bike upright and on-course. Its not actually a win-win. Furthermore, any intentional steering inputs will now be delayed. This creates something called a phase lag in the dynamic system, which degrades control-ability. I could dive into this in painful mathematical detail, but please just...
This forum topic has 46 replies.
justinc5716 Liked a reply to forum topic How stiff are dual crown forks?
4/15/2021 8:01am The idea of torsional compliance being good is strongly misguided. Sure you are providing a means of isolation for some side impacts on the tire, but remember that these impacts are now imparting a directional change to the tire rolling axis. The result is that body inputs and extra steering inputs are needed to keep the bike upright and on-course. Its not actually a win-win. Furthermore, any intentional steering inputs will now be delayed. This creates something called a phase lag in the dynamic system, which degrades control-ability. I could dive into this in painful mathematical detail, but please just...
This forum topic has 46 replies.
RoJo1 Added a reply to How stiff are dual crown forks?
4/14/2021 2:01am Excellent job. Thanks for concluding and answering the questions raised by the first article. The best piece of MTB analysis available on the internet! I can't see a need to rush out and buy dual crown for my Enduro bike for the sake of stiffness, but it's a good way to go if you want 200mm travel!