D_C_ profile

Just don’t call them a moped :D

The advocacy portion of @Vik Banerjee's post is the salient point, and the part that is worth discussing/debating/acknowledging.

But I also note that the 464 mm reach on the large is on the conservative side, so the bike might play well with lower bars since you're not that stretched out.

Interesting thoughts on bar height with the new long and slack bikes. My experience has been the opposite - higher bars feel better to me. The longer reach positions you over the front of the bike by default, and higher bars are necessary to have some ability to shift weight around.

@GOrtho - calling it pseudo-science isn’t quite fair. They are using a sophisticated fluid mechanics model that has the potential to do a reasonable job simulating what they’re looking to show. The limitation is more that the study has not yet been peer-reviewed or published. They are also trying to model something that is quite complex, and they need to get a lot of things right for it to represent reality.

Their results might be accurate or they might not, and even if the physics are right, the phenomenon may or may not pose significant risk of virus transmission. Once the research goes through its due process, we will know more.

At the very least, it’s an interesting use of this model to explore the idea. I agree that people sharing the findings as fact are jumping the gun.

I would think the negative volume remains about the same. The piston head is advanced about 1 cm upward into the air chamber, but top-out bumper side of the seal head is also shifted 1 cm upward (by having the seal head being about 1 cm thicker, with the seal moved upward). 

Wouldn't the volume be the same but shifted upward?

(Not arguing - genuinely asking)

Edit: you're right - if you look at the two air springs side by side, the new one clearly does have less negative spring volume.

I have been riding it too, figuring it was a good way to not see anyone else on my ride. Sounds like others have the same idea.

That's awesome! Thanks for the info.

I think it's more that positive and negative chambers equalize sooner in the travel, which results in a lower negative spring pressure.

What’s the install like for retrofitting the new nut and seal head? For home mechanics without a vice, what is a safe bodge for clamping the air shaft to unscrew the nut?

Others may disagree, but as someone who has both a hardtail and full suspension, I think you'll want to get a full suspension at some point. You can absolutely ride everything on a hardtail, but it is less forgiving. A full suspension will help you build your confidence without punishing you to the same degree for mistakes.

Posted by: Vikb

Nothing wrong with getting rid of a bike you don't love riding.

I agree, but sometimes it’s a matter of spending the time to work on bike setup.

I didn’t love my Troy 29 until I chopped the bars to 760 and got a -1 works angleset. But it took a bit to get there.

Is it your Process 134 in the other thread? That’s a nice bike. What fork travel are you running? Try bumping the fork to 160 or 170 before you bail on it. Though it sounds like you may have already moved on in your mind.

Parking is one thing, but it's the "No mountain bike drop-off" sign at Mountain Highway and Coleman that pisses me off. Residents up there getting annoyed about kids getting dropped off at the yellow gate is nimbyism at its finest. We are all inconvenienced by this pandemic.

Posted by: Endurimil

Posted by: Chris_Mitchell

About to purchase a Chromag Primer. I was sad to notice the press fit BB - but realized I don't really care as long as it is quiet! (A noisy bike drives me mental). Anyone have any experience/ issues with this on a Primer? Also, I'm a 5'11'' rider going for a size M/L, but was curious if I should size up. Any insights or advice would be appreciated!

The BB every Rootdown I have seen recently on Pinkbike has this as the BB from Wheels Manufacturing. Not a true press fit I don't think. 

https://wheelsmfg.com/bottom-brackets/bb86-92/bb86-92-outboard-abec-3-bb-for-24mm-shimano-cranks-black.html

I'm running this one on my Rootdown with Turbine Cinch cranks. It spins like the day I bought (about a year ago) it and hasn't made a peep:

https://www.enduroforkseals.com/products/bottom-brackets/mountain/pf41/Cinch30/BB92X30SS.html

Posted by: mrbrett

Don't know if it helps but at the local waste centre all the ATF, motor oil, diff fluid, brake fluid, etc. goes in the same giant tank and then something happens to it. If you're hoping to drop your old suspension oil off to get filtered and reused you may be out of luck.

Yeah, I'm not talking for my own reuse. I am just talking about proper disposal. I have a bunch of containers of used oils and fluids going at home and am starting to think about how to properly get rid of them.

A few questions:

- Which oils and fluids are recyclable, and which are not?

- Where can oils/fluids be returned for recycling or proper disposal?

- Do different oils and fluids need to be kept separate from each other (e.g. can mineral oil and suspension oil go in the same container)?

Posted by: Ddean

Update. You might want to not use UPS. My bike was placed on HOLD today due to Covid impact on their business. 

It was supposed to be delivered yesterday. At 7pm they delayed it until today. Then at 11am today they put it on hold with no delivery date specified. Trucks are not getting unloaded at the main hub in Richmond so stuff is just sitting there and not getting sent out for delivery.

My Jenson order last week also sat with UPS in Richmond for a bit over a day. The package was delivered the day after the scheduled delivery date, and the tracking never updated to 'Out for Delivery.'

I am sure your bike will show up soon.

Posted by: mudhoney

There's also a lot more foot traffic out on Seymour*

*can't speak for Fromme as I've only been on Seymour

The walker traffic on Fromme is mostly on the west side starting from the Braemar trailhead, since the lot is closed. At peak times, there are many walkers on the lower trails in that zone. 

Going a bit higher, walkers seem to love Dreamweaver over the climbing trail, so I try to avoid DW during peak times.

OneUp has been helpful with the few technical questions I have had. I would email them.