Recent Activity
All
Primoz Added a comment about feature First Look: 2015 Lapierre DH
6/8/2014 9:58am
The pivot is actually lower than the top of the chainring, which would mean it's actually pro-squat when on the power. Though you do have to take into account the force between the tire and the ground, which can also contribute some anti-squat (it is the main component of the high pivot bikes actually, Zerode for example). The height of the pivot is the crucial part, since it gives the chain the torque needed to rotate the suspension. Fore/aft placement doesn't mean much, when looking at the suspension in a single point (sag for example), though that can change wildly...
This feature has 39 comments.
Primoz Added a comment about feature First Look: 2015 Lapierre DH
6/8/2014 9:04am
"With the pivot very close to the top of the chainring and almost centered over the BB, there are little to no anti-squat characteristics here" Care to elaborate this part of the article?
This feature has 39 comments.
Primoz Added a comment about photo John Cancellier's Santa Cruz Nomad
4/19/2014 5:32am
This is what dreams are made of. Not a single components needs replacing.
This photo has 2 comments.
bjenson Liked a comment about Feature Sneak Peek: Inverted RockShox RS-1 Fork
3/22/2014 10:17am
where'd the photo go? found this one of the new rotor. dirt also had one of a new brake lever a bit ago.
This feature has 31 comments.
Primoz Added a comment about photo DVO Diamond Enduro Fork Prototype
11/9/2013 12:15pm
It used to be possible to get a complete bike for a bit more than 1500. And it wasn't a bad bike at all!
This photo has 2 comments.
Primoz Added a comment about bike check Stealth Bronson (a.k.a The Zephyr)
11/3/2013 10:43am
Tell me about it, but a beauty like this might just be worth it! Again, you have asuch a sick bike!!
This bike check has 17 comments.
Primoz Added a comment about bike check Stealth Bronson (a.k.a The Zephyr)
11/3/2013 8:50am
You're lucky to be far away in Canada, so you're too far away for me to steal this bike. It's just epic
This bike check has 17 comments.
Primoz Added a comment about bike check Stealth Bronson (a.k.a The Zephyr)
11/3/2013 8:03am
WIth a Monarch+ ont he back this wouldn't be just a dream bike, but the ULTIMATE bike in my oppinion.
Votes:
This bike check has 17 comments.
Primoz Added a comment about video Santa Cruz Hits the Enduro World Series in Finale Ligure
10/25/2013 11:54am
Hm.. Did CG just say Steve will be focusing on Enduro for the next year?
This video has 9 comments.
Primoz Added a comment about photo 2014 Breezer Repack
9/3/2013 3:17pm
The white link is basicly cantilevered.
This photo has 24 comments.
Primoz Added a comment about photo 2014 Breezer Repack
9/3/2013 3:16pm
I know. THat's why i said wider bearings are better, since they give you less flex (if a bearing moves up or down 10 mm, it will give more torsional flex, if it's 5 cm from it's counterpart, than a 15 cm spacing will give you). And trust me, you ain't seen nothing yet as far as flex goes until you've ridden the old banana style Commencal Meta.
This photo has 24 comments.
Primoz Added a comment about photo 2014 Breezer Repack
9/3/2013 2:48pm
I won't comment on that, since i havent' thought about that much (well, i'm lying, i have thought about it a lot, but i haven't done a single calculation). Maybe i can say more on the topic in about a year. Hopefully.
This photo has 24 comments.
Primoz Added a comment about photo 2014 Breezer Repack
9/3/2013 2:32pm
THen why is having widely spaced pivots a good thing? Granted, it's on the frame where you can have more than 12 mm axles, but still. THe further appart they are, the more movement you have for a certain degree of torsion. Stiff only gives out so much movement, so with wider spacing you get less torsion.
This photo has 24 comments.
Primoz Added a comment about photo 2014 Breezer Repack
9/3/2013 2:13pm
Oh, and another thing. Depending on design, a horst link enables you to make the chainstay shorter than a dual short link.
This photo has 24 comments.
Primoz Added a comment about photo 2014 Breezer Repack
9/3/2013 2:11pm
Uh?
This photo has 24 comments.
Primoz Added a comment about photo 2014 Breezer Repack
9/3/2013 2:09pm
Well the closer the pivot is to the axle, the more the 12 mm helps. It's the best for split pivot or ABP designs, since the pivot is linked with a 12 mm axle. Besides, the bearings are spaced wide appart, much farther than on the frame. I'm still certain MLink has it the worst, since it has no left to right connection near the pivot. A horst link has it much nearer and a short link is directly connected. Even if you take into account that the swingarm is traingually reinforced, the white link isn't.
This photo has 24 comments.
Primoz Added a comment about photo 2014 Breezer Repack
9/3/2013 1:35pm
But a horst link has a stiff 12 mm axle quite near the pivot. A dual short link is a single piece with the link and the axle or bearing seats on the swingarm completely connected. Which is way more stiff. This has no reinforcments between the drive and nondrive side. Okay, the left has a triangulation reinforcment, but that's a neccessety. The drive side is even more of a problem. And a direct mount of the shock to the swingarm is more of a negative than a positive. f the swingarm flexes, it will put stress on the shock...
This photo has 24 comments.
Primoz Added a comment about photo 2014 Breezer Repack
9/3/2013 1:14pm
Um... What now, do they look simmilar and stuff or not? I'm fully aware what the differences are, this is basicly just a short dual link suspension, that has the bottom link stretched out. In principle a horst-link is the same, but it has the bottom link stretched out to the max. I suspect the CS bearing failed first because it rotates the least. prolly closely followed by the BB pivot, which also probably has some quite high loads. This might just be worse, depending on the finess of the design. Besides the radial stresses you will probably have some...
This photo has 24 comments.
Primoz Added a comment about photo 2014 Breezer Repack
9/3/2013 11:51am
Yeah, i was just randomly typing along and it came out that it's flexy. And how is this a 27" Enduro? o.O Chainslap and grime are the least of the problems here. The main pivot near the BB is much more problematic, since it's in direct path of the dirt comming off the tyre.
This photo has 24 comments.
Primoz Added a comment about photo original_BT_20130829_untitled_shoot_022.jpg
9/2/2013 1:05pm
Well polymers (the resin, that holds together composite materials) do have quite a lot of internal damping. But still, you have a ~70 kg weight over it. I doubt they have THAT much damping. I guess he actually did think that it's not that much travel for it not to be a problem. If at all, since he's into prosthetic design, not suspension design (i have a feeling this was more of a design excercise than an engineering design). groghunter i predict a different problem - using all the travel and not limiting it.
This photo has 8 comments.