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Might be best to bring it over here before tech talk gets sidetracked again. https://www.vitalmtb.com/forums/hub/e-bike-talk-not-tech-rumor-derailment?page=29
I think the issue with adding more rubber, is clearance - Sure, not an issue if you build bikes specifically for the "29+" tires, but as of now - The Schwalbes profile is already so big that you cant really fit them on some bikes. I know they wreck the druid frames due to being so close it drags a bunch of stones through the chainstay-bridge, and on some nomads and megatowers, they dont clear the linkage (I think it varies from tire to tire). I had them on my megatower, and it was like a papers thickness of clearance, and the linkage got wrecked after a few rides
New Tyee framesets supposedly only $1900 for AL $2700 for carbon. Feels like these are nearly half the price of other comparable frames on the market. Am I missing something here or has Propain always been this affordable?
http://vitalmtb.com/news/press-release/propain-launches-tyee-cfal-trail
Either my internet connection or Propain's site is struggling so I can't verify, but for their other framesets they're priced as Frame + acros headset, if you want to add a shock that's additional $.
32 is already a standard in the unicycle world, and 32 in bikes have been available to purchase for a decade
Transition things:
New Spur is sometime next week (saw them and the colours look good, but not sure if there are any major changes?) and new TR11 is later in March.
Ohhh this is very good I like the fact they're bringing them back
Shimano ice tech.. actually means they just move at a glacial pace 🤣.
Looks like the SRAM DH transmission is ready and in production
im still lost in my feelings on that. seems like an unnecessary weight and cost for that part on a DH bike. someone have a reason that makes them feel an overwhelming yes, bring it on! for DH transmission?
Outside of being sponsored? I’ve got nothing. I guess if you like buying the halo build? Performance wise it would have to be able to shift reliably when I was throwing down 800+ watts.
Someone mentioned no setup / adjusting time between wheell swaps, sounds sensible but I don't know whether it's a real thing in race / training scenarios
It is a mostly new frame. The geo is a bit more conservative, it has a different kinematic, and uses a shorter stroke shock. It uses the same battery and motor as the standard issue Levo 4, but you could put a 600wh battery in it to further lighten it. It’s nothing ground breaking, a handful of pounds lighter due to the frame changes and part spec.
As a consumer, I think it's hard to see the value in a wireless DH drivetrain. However, from a racing perspective, I could see that there are advantages that may be worth it. For me, one of the biggest advantages to wireless drivetrains are the ergonomics and the fact that I can get an AXS pod shifter tucked up under my brake lever body and very tight to my grip. This let's me actuate my shifter without having to un-wrap my thumb from the grip. Is that something that's a deal breaker? absolutely not... but if you're chasing the sharp end of the sport, and little things start to matter, then yes, I think it's innovation that makes a difference and if you have the means, there is no reason not to.
perhaps I've bought into too much of the transmission marketing regarding its ability to "move out of the way" during impacts - but on my Stumpy15, I've smacked the shit out of my transmission derailleur and it has held up incredibly well. Not sure if that's related to the UDH or the "move out of the way" thing. Either way, that level of reliability could be a tangible performance upgrade in a race scenario.
still a short cage and hanger not feeling like an issue after thousands upon thousands of laps on my DH bike. I can SEE the reasons it might........ be beneficial but it still feels like it doesn't make sense to me for that weight and money.
Dont get me wrong, I have made more than my fair share of silly or expensive or unique parts purchases over the years. this one just isn't making sense to me
If that is true, why does the term "Faux-bar" exist to describe linkage driven single pivot bikes?
It's because they are not 4-bar linkages as we commonly use the term in mountain biking.
In a true 4-bar linkage, the axle path is determined by multiple linkage arms, not a single arm like you see in a "Faux-bar" single pivot.
With more and more companies combining their enduro and Dh bikes, this makes it a lot easier and faster to switch back and forth for the consumer. Transmission is as close to set and forget you can get right now
Honestly could not think of much worse in terms of bike prep than having to charge batteries for my suspension and derailleur on my DH bike 😢
On top of this I feel like the direct mount derailleurs are just more durable even in the versions that don't "move out of the way". My Zee derailleur is bombproof and has a steel backing plate, but I would not stand on it. Maybe I'm too bought into the marketing too!
I really wish someone would do some actual scientific testing on the impact force each derailleur can take. I'd fork out stupid money to just have the strongest one that will never end up in my spokes.
Four-bar linkage?
Watch this:
All derailleur "move out of the way". Go test it on your cable actuated one.
I’m not attempting to be a hater, but I think the “move out of the way” thing is a moot point when it comes to DH drivetrains. There are merits to the overall size of transmission and its ability to move out of the way, but I think it’s a problem that doesn’t exist with super short cage DH setups. SRAM has every right to sell AXYS DH transmission but unless you’re independently wealthy and just like expensive shit there’s zero reason to buy it. And props to those guys that do I guess? They are pumping money into the market, so that’s a good thing to some extent. Which is cool I guess…
But if clearance did actually matter, 135 would still exist. There was nothing wrong with 135 but it was not really reasonable to try and keep a dead standard alive, and Spesh tried to milk that cow as long as they could by arguing it was about clearance.
SRAM will brag about clearance of AXYS transmission being a benefit. The clearance won’t be a con, but it’s a selling point to negate a problem that legitimately does not exist in the modern world.
Strongest derailleur you say?
https://www.ebay.com/itm/167495861062
Whoops this is the one derailleur that WON'T move out of the way
I can see some advantages of a short cage UDH derailleur on a DH bike.. A 90 mechanical version would be my choice..Electronic is nice but not needed. As for electronics on the suspension, I can't see a benefit to someone just doing park laps..
Heard about an epic Evo “trail bike”, possibly 4 bar, new platform.
https://www.eightpins.com/en/products/stiffshifter
What are the internet communitys thoughts on this product?
I thought the point of a derailleur hanger was a mechanical fuse and replacing it with an overbuilt alternative defeats that purpose. If the UDH is fragile that's by design.
Looks like a product that disappeared 20-ish years ago, and now it’s back.
Ehhh. It wasn’t needed or useful back in 2006, but this one looks prettier
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