my 2008 cowan ds with all 09 parts:) not fully complete stuff still coming!!
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Photo info
- Album
- cowan-ds
- Category
- Dirt Jumping
- Date Posted
- Jan 29, 2009 at 16:04Jan 29, 2009
- Location
-
Penticton, British Columbia, Canada
- Trail
- cowan
- Riders
- my cowan ds
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81 Comments
- 0 0
teamn2
(May 14, 2009 at 21:45)
What bars are those and i wish that i had the money to buy this ride too i saw it at your house and i was just like oh my god so sexy but ya the blk mrkt i threw some of my parts on and you should check it out now its in my pics
- 2 3
if you havn't noticed that most fullies have gears and not very many are single speed, i may be wrong but the distance between the BB and the rear cogs changes on a fully which is loosening and tightening the chain while being ridden so it may snap.. sorry i scrambled that paragraph together
- 0 2
its a single pivot frame bittre its designed to have no chain stretch through out its travel eirgo it can have a tight chain..
- 2 3
First of all, it's not a single pivot. Second of all, even if it was a single pivot, it still wouldn't be able to be run singlespeed without a dual pulley tensioner. The Cowan DS frame is a four-bar link with something called a "concentric bottom bracket," which means that the main pivot is around the bb, hence the distance between it and the axle remains the same througout its travel, negating the need for a chain tensioner. Believe me, I had the exact same frame not too long ago.
- 3 0
Seraph, actually it IS a single pivot design due to the location of the axle being on the chain stay. You are correct about the concentric bottom bracket though - the chain length is constant regardless of where the suspension is in its range of motion.
- 1 2
No, it's a 4-bar suspension design. The axle path may be the same as that of a single pivot, however it is a multi-pivot linkage.
- 2 0
The linkage is defined by the number of pivots between the frame and the axle. To consider a suspension type to be multiple pivot, more than one pivot has to affect the axle path which is not the case in the simple 4-bar design.
The 4-bar linkage that Kona uses is usually referred to as a "faux-bar" because it resembles the 4-bar Horst linkage, but is still effectively a single pivot. The only purpose of the "multiple" links is to provide more flexibility in actuating the shock. Frames like Rocky Mountain's RMX are definitely single-pivot designs, and have just as many bars and pivots as the Kona 4-bar.
That said, it is worth differentiating between a basic single pivot like the Cannondale Gemini or SC Bullit and a 4-bar linkage like Kona's because of how the shock is actuated, but it is deceiving to label it a multi-pivot when in fact it is really just a link-actuated single-pivot.
Take a look at this thread: www.pinkbike.com/forum/listcomments/?threadid=9810&pagenum=1
The 4-bar linkage that Kona uses is usually referred to as a "faux-bar" because it resembles the 4-bar Horst linkage, but is still effectively a single pivot. The only purpose of the "multiple" links is to provide more flexibility in actuating the shock. Frames like Rocky Mountain's RMX are definitely single-pivot designs, and have just as many bars and pivots as the Kona 4-bar.
That said, it is worth differentiating between a basic single pivot like the Cannondale Gemini or SC Bullit and a 4-bar linkage like Kona's because of how the shock is actuated, but it is deceiving to label it a multi-pivot when in fact it is really just a link-actuated single-pivot.
Take a look at this thread: www.pinkbike.com/forum/listcomments/?threadid=9810&pagenum=1
- 2 1
Hey I know all of this. I've been in the bike industry for 12 years. All I was saying is that it's not a stereotypical single pivot, like the aformentioned SC and Cannondale frames.
To say "single pivot design" is misleading, because in reality there is more than one pivot. "Single pivot suspension design" would be more accurate, since it relates directly to the suspension and not the frame, linkage, etc.
To say "single pivot design" is misleading, because in reality there is more than one pivot. "Single pivot suspension design" would be more accurate, since it relates directly to the suspension and not the frame, linkage, etc.
- 0 1
ummm so basically u all forgot u still shouldnt run such a tight chain because it means when u go through the travel the wheel will be forced to move because on compression the top of the chain will be loosened and the bottom will be tightened and on the rebound the opposite is true... try tieing a peice of string and grab both sides (because a chain cant slide past the chain teeth on a ring) and rotate one side around the other... ull instantly realize wuts going on... and it doesnt matter on the compression cus the free wheel will click but it will lock up ur suspension a bit when ur trying to rebound.
ill give you my bmx 
- 0 0
Cause the parts that are on them plus how often can you get a single speed full suspension that weighs as much as a hardtail ??!? Plus have you ever riddin one?
- 0 0
nope never riddin one, i was just asking why. So do you ride ss with this thing, doesnt the chain loosen when travel is used up?
plus cash of coarse- 0 0
well it had a front break on and it weighed around 33pound and im guessing with both it would be in the 35 range
- 6 3
re: audeo03, r u f*cking retarted? obviously u can't do math because 35 lbs- 33 lbs = 2 lbs, not 5 u idiot
- 4 0
RE: both of you, it was 33 lbs with a front brake, no derailleur, add about 2 lbs for the derailleur and shifter, you get 35 lbs.