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Liked a comment about product review Sprindex Adjustable Coil Reviewed - Find Your Perfect Spring Rate! 7/6/2020 10:20 AM

Preload adjustment is very different from what the Sprindex does. Preload has always been adjustable on any coil shock via the spring nut. Sprindex is an adjustable coil spring spacer. By surrounding and cradling several coils,it allows you to effectively change the length of the wound coil wire, which alters the leverage you have over the spring. As a simplified illustration, you can try bending a stick over your leg, then break it in half and try to bend one of the halves over your leg. It will be much more difficult to bend because you don't have as much leverage on the stick. This is precisely what Sprindex does by reducing the effective total spring length and making it more difficult to compress the spring.

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Liked a comment about feature Turpen's High-Pivot 29er Prototype 6/25/2020 10:12 PM
Big Bird

Nice one Evan. I didn't know you could weld. Josh Walters here. We used to know each other back when I lived in Santa Cruz. I've made four of my own., two hardtails and two suspension bikes. The hardtails are dirt jumper/trials bikes and the suspension ones are a slopestyle bike and a DH bike based on Santa Cruz Bullit swingarms with burly steel front ends. The slope bike is an OG Bullit swingarm with a front end as long as an XL but only as high as a small. And the DH frame uses a newer Bullit swingarm fitted to a super long and slack front getting nine and a half inches of travel.I hope this project works out for you. Seems you've put plenty of thought into it.

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Liked a comment about video Are Flat Pedals Less Efficient? 6/23/2020 9:59 AM

Real world it goes back to the old school thing with Ned Overend & Tinker Juarez on stand up climbing versus seated. Your heartrate while seated climing is an average of 10 beats slower and efficiency over distance is not just cumulative, but has an exponential effect where you're less fatigued at the same speed. I equate flats and clips to that, but with something in the range of 100,000 variables that can raise your heart beat once you throw in a trail. If you're clipped in, you're using entirely different muscle group firings than on flats. You're running your seat at a different height with both you actually have a variation in your center of mass depending on seat raised or lowered. In turns, clips can give you confidence being able to relax over chatter but can penalize you if you're on off camber and "want" to ride your unnatural downside heel (since most of us clipped in have a specific foot back). On flats, we all can turn both ways easily on off camber because we can slide the inside foot off and on easily, so you may make up time ON flats if the majority of time on a course is toward the camber of your front foot in clipless.

We cannot have a clear cut answer between the 2 efficiencies because you have to spend YEARS setting your bike's suspension up for one or the other pedal type, training your body to be at an optimum stance & physical strength for clipless racing or flats and THEN you can get your performance gains or losses measured.

There is ZERO way to evidence one better than the other without starting at the exact same timepoint in your career, training for that type of shoe and racing. Then...rewind time back to your same date in time and start the training for the other.

Hill is the best on flats. He is the best because he has NEVER waivered and went to clips. When he, Rennie & Kovarik all raced on flats full time, the MTB world was flipped on it's head. Sure, he didn't win Sea Otter on flats. He lost badly, but he also was on a very specific fitness plan that week and it wasn't his goal.

But Rennie won Sea Otter on flats. People forget that.

I run both just to change up riding and keep things from getting stale 365 days a year. But I'll always RACE clipped in because it's what I programmed myself to race all those years ago. But boy, do I love modern day flat pedals and Freerider Pros too. Party time in the woods on that combo!!!

If you're a racer and you want to race flats, put them on, don't doubt yourself...and NEVER LOOK BACK. The instant you "try" to race in clips again, you've already defeated yourself for a lifetime.

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Liked a comment about video Are Flat Pedals Less Efficient? 6/22/2020 8:51 PM

From what I have read in studies so far over the years, flat pedals are either the same or more efficient (when mountain biking).

I think there is some misguided opinions on this Just like when high pressures in tyres was thought to be a good thing when mountain biking (because it worked in road biking). In comes Pro Core and then everyone else...

The reason low pressure tyres work so well in mountain biking is because it has exactly the conditions that road biking or a static bike do not have.

Need a test that is done in the woods on real trails.

Like your video. At least it shows that even in non real world conditions (for mountain biking) flat pedals are basically the same as clips.

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Liked a comment about video Building a Bike Park 6/16/2020 6:24 PM

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Liked a comment about feature Why That Bike? | Commencal Meta 5/29/2020 5:37 PM
Liked a comment about video Do You Lose Air When Removing the Shock Pump? 5/25/2020 10:40 AM

He says that most gauges aren't zero loss, not that most pumps aren't zero loss. But either way, the whole idea of air loss just doesn't add up.
Think of it this way. When you attach a shock pump, you thread it on a ways and it forms a seal (i.e. pump still reads zero, but the shock/pump interface is now airtight), and then you continue threading it on (those last 1-3 rotations on the threads) until the pump opens the shock's valve core and you get a reading.
The whole idea of "air loss" hinges on the idea that there's an overlap between those two instances I just mentioned above, basically saying that, as you unthread the pump, the airtight seal between the pump and the shock is broken while the valve is still open. This is why people are so scared of that little "hiss" when you detach the pump. And there are two ways to disprove it:

1) Why doesn't the shock lose air when you put the pump on (as opposed to when you take the pump off)?? If this overlap was actually real, the valve core would open before an airtight seal is formed while you attach the pump, and you would hear that hiss just as you do when the pump is being removed. But it NEVER happens when you attach it, does it?

2) Try unthreading your pump VERY slowly from your fork/shock once you've pumped it up. Right when you hear the hiss, stop. If there's actually air loss, the air would drain completely out of your suspension when the pump is threaded on halfway like that. But this also doesn't happen. The hiss is just the air leaving the pump, and once the pump is empty, the hiss stops. Thread the pump right back on and you'll see that your suspension is still at full pressure (with the disclaimer that, when you reattach it, just like this video explains, your reading will now be lower because the air in the fork/shock must expand slightly into the pump's hose in order to get a reading).

Like some people have said, pre-charging definitely helps with accuracy, but is only 100% accurate if you inflate to exactly the same pressure as what's in your suspension in the first place. If you're low, the shock loses a little bit of air and it'll read low. And if you're high, you add air to it during attachment and it'll read high. In the end just do two things: always use the same pump for consistency, and remember that air loss isn't real.

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Liked a comment about video Media Squid Sending - Vital RAW with Lee Trumpore 5/20/2020 3:50 PM

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Liked a comment about feature MTB Tire Test: Michelin Wild Enduro vs. e*thirteen LG1r EN MoPo 5/19/2020 8:36 AM

Yeah reluctantly agree.
About once every 3 years or so I get tempted into trying something else, and I sometimes find something that is maybe even 80% as good, and you think "yeah these are thoroughly not bad".
But then I go back to Maxxis/Schwalbe and I'm like "mmmm yeah still the best".

Shout out to Continental who have consistently made utterly terrible, plastic coumpond tyres that should come with a health/career warning.

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Liked a comment about feature MTB Tire Test: Michelin Wild Enduro vs. e*thirteen LG1r EN MoPo 5/19/2020 8:35 AM

A fresh pair of DHF/DHRs (or more recently Assegai) is always awesome, but at EXO+ weights I do find that they pinch flat too easily, and the rate at which the side knobs start to tear off is pretty unacceptable IMO. I have plenty of them laying around with lots of tread life left in the middle and half the side knobs just peeling off. That's two reasons to at least keep trying other stuff.

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Liked a comment about feature MTB Tire Test: Michelin Wild Enduro vs. e*thirteen LG1r EN MoPo 5/18/2020 8:38 PM

I don’t disagree with you, and I just mentioned the DHF as it’s the most popular or one of the most popular in this category from Maxxis. This space has gotten more competitive though

Edit: I’ll also add I respect your experience, you’ve been around longer than I have, and I know you’ve been on more options that I have. Cheers!

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