New posts

cedrico's comments

20 comments found

Garage Built: Tom Moffatt's Custom Made Bikes - July 7, 2021, 6:55 a.m.

Gorgeous stuff. What type of finish was used for the bike with the grey front triangle?

Corsair Was High Pivot AND Pedaling, In 2007 - June 30, 2021, 8:52 a.m.

Keep in mind that the size of the idler pulley has a big effect on the amount of drag. The idler on that Corsair is tiny—and will therefore produce more drag—compared to the 18t tooth idlers found on modern high pivot bikes the Norco Range and Deviate Highlander. I've ridden a high pivot all-mountain bike with a 20t idler and it feels quite nice.

Bontrager Line Elite Carbon Wheels - Feb. 8, 2021, 12:32 p.m.

"Combined with even heavy DH tires, the Line Elite is faster uphill, and lighter weight, than a CushCore setup for the equivalent application."

But if I understand correctly, the Cushcore setup with lighter casing tires would have lower rolling resistance, because heavy casing tires create drag from the heavy casing being more resistant to deforming. Also, the Cushcore setup might produce more grip on rough trails because the lighter casing tire conforms better to the rough stuff. Considering the lower rolling resistance of the hypothetical Cushcore setup, can you confidently say that the carbon rim plus heavy tire combo is faster uphill? I'm not sold on the idea that heavy tires are a comparable alternative to Cushcore.

2stage Elite 9 2 - Nov. 17, 2020, 11:20 a.m.

Is the idler pulley attached to the link which is separate from the swingarm and the front triangle?

Some thoughts on the recent purchase of MEC from Uncle Dave - Oct. 1, 2020, 7:38 a.m.

Great comment

2020 Öhlins TTX Air & RXF36 m.2 Air Review - Sept. 24, 2020, 12:25 p.m.

Where's this shock manufactured?

Smith Mainline Full Face Helmet - Aug. 5, 2020, 5:26 p.m.

How does the Smith Mainline's ventilation compare with that of the TLD Stage?

My Favourite Push-On Grips - July 13, 2020, 7:57 a.m.

I hope you meant figuratively.

Experiments with CushCore and Tannus Inserts - May 20, 2020, 6:57 a.m.

Tires with tough casing and without inserts are not comparable to tires with lighter casing and with Cushcore inserts. The later will have less rolling resistance, better traction, and probably just as good if not better rim protection.

PNW Components Now Offers Refurbished Dropper Posts - May 17, 2020, 1:49 p.m.

I just checked and it seems like dropper posts are available on their cycle site. Maybe it just took them a few days to get going. 

I love this idea of making sure stuff gets refurbished instead of going in the landfill.

CushCore 29 Plus Inserts - Much More Of A Good Thing? - April 21, 2020, 4:30 p.m.

I tried a Super Gravity casing tire in the rear a while ago when I was getting tired of rim strikes and the usual flat tires that resulted, but I really didn't like the rolling resistance. Reduced playfulness might of also been a factor; I like jumping around and fooling around on my bike, while being able to plow through stuff when needed. Now that I'm using Cushcore inserts, I don't feel the need for Super Gravity casing for rim/flat protection, and I also feel like I get enough support with my current tires. But maybe if I tried a tire with more support now, my view would change. Thanks for your suggestion about WTB Vigilantes. I might try those when my current tires wear out.

CushCore 29 Plus Inserts - Much More Of A Good Thing? - April 10, 2020, 1:55 p.m.

Huh. I haven't noticed much squirreliness, but I have yet to try other brands or models in this 27x2.8 size. Let me know if you have suggestions!

CushCore 29 Plus Inserts - Much More Of A Good Thing? - April 5, 2020, 6:55 p.m.

Yeah I have experimented with lower pressure, but I avoid going too low for tire stability and rim protection reasons. My Hans Dampf tires have SnakeSkin sidewalls - they're these ones, specifically: https://www.bike24.com/p2308059.html?q=hans%20dampf

CushCore 29 Plus Inserts - Much More Of A Good Thing? - April 1, 2020, 12:12 p.m.

I've been riding 27x2.8 Schwalbe Hans Dampf with Cushcore 27+ front and rear on a full suspension trail bike (150mm travel front and rear). I use Stans Baron rims (35mm internal width), and I usually set tire pressure to ~18psi rear and ~15psi front. This setup is great all around, except I wouldn't mind trying a faster rolling tire in the rear for dry days.

Deviate Cycles Presents The High Pivot Highlander - March 11, 2020, 12:17 p.m.

First and foremost, I suggest you try a high pivot bike if you haven't already.

That aside, I think you make a good point that the inertia of a rear wheel when rear suspension is rebounding can contribute to the forces transferred to the rider, and it can do this more for high pivot bikes going over square edge bumps. However, what I think matters more is the alignment of the direction of forces from bumps with the direction of rear wheel travel. A good way to understand is by reducing things to an (absurd) extreme. Imagine a bike where the rear axle path is a straight line tilted 45 degree from vertical and towards the front of the bike. Now imagine a bump on the trail causing a force transferred to the rear wheel with a direction that is angled 45 degrees from vertical towards the back of the bike. Because the direction of the force and the direction of travel of the rear wheel are at 90 degrees to one another, there will be no rear wheel travel from this impact. Therefore, a maximum of force will be transferred to the rider (like riding a hardtail) even though the force transferred to the rider because of the rebounding inertia of the rear wheel is minimized. The rearward tilting of the axle path of bikes like the Highlander generally increases the alignment of bump forces with axle path direction, and generally decreases forces transferred to the rider when plowing through rough stuff. Note that this is my current understanding, and that I might be wrong because my understanding of these sort of things constantly evolves. However, I have tried a high pivot bike and they are pretty awesome in the rough.

20 comments found

Forum jump: