Uh ya, you do. Your body weight has nothing to do with the rebound when you are unweighting your bike. Like say, off of the lip of a jump.If I gain or lose weight and have to switch spring rates I don't need to change the rebound settings.
Uh ya, you do. Your body weight has nothing to do with the rebound when you are unweighting your bike. Like say, off of the lip of a jump.If I gain or lose weight and have to switch spring rates I don't need to change the rebound settings.
Off the lip of a jump the force of your body weight + gravity are acting against the spring. Once you're in the air it doesn't matter because the ground isn't there to act against the wheel which acts against the spring.Uh ya, you do. Your body weight has nothing to do with the rebound when you are unweighting your bike. Like say, off of the lip of a jump.
Haha, they do - that's what the adjusters are for.If what you're saying is true different weight riders would need different shock tunes to compensate for increased or decreased spring rates.
According to what you're saying, you'd use the same amount of rebound damping whether you weighed 100lbs or 200lbs, and thus regardless of spring rate.
You might want to take a few steps back man.
Now, back to your regularly scheduled program.Firstly think about two different scenarios. Taking off over a jump and landing after one. As the wheel leaves the ground the suspension will open until it reaches full droop or full open. The only weight acting on the rebound damping force is the weight of the Unsprung weight (the wheel, brake calliper, wheel hub etc) which is anything under the spring, and the energy stored in the spring (the difference of the springs fitted/loaded length and free length/open length). E.g. If the fitted/loaded length of the spring is 8 inch, and the free/open length is 12 inch, and the spring rate is 100lb per inch (linear rate), there is 400lb of additional force opening the damper, which is acting on the rebound force.
Once you have landed and fully compressed the spring and damper (and possible onto the bump stops) the amount of stored energy in the spring (and possible bump stop energy) will be at its maximum. This stored energy will want to explode, forcing the damper open, firing the sprung weight (body) into the air. The initial movement from the fully compressed damper will need maximum rebound damping force (high speed) to control the rebound or opening. As the spring reaches its natural fitted/loaded length the rebound forces needed to the control the rebound will drop as the stored energy is released. The perfect rebound damping forces will allow the spring to return to its fitted/loaded length without “over shooting” or passing its natural ride height, which would result in the sprung weight (body) going back in to bump travel (bouncing). So the dampers rebound forces needs to react with higher and lower damping forces depending on the energy stored in the spring. In theory there is only one rebound damping force needed for a given weight and spring rate, the “critical damping force”. However, the ability to adjust the rebound can have dramatic effects on the handling.
Those are adjusters are also used on lots of bikes with different leverage ratios with riders with different riding styles. That's why there is a huge range of adjustment on stock shocks.Haha, they do - that's what the adjusters are for.
According to what you're saying, you'd use the same amount of rebound damping whether you weighed 100lbs or 200lbs, and thus regardless of spring rate.
You might want to take a few steps back man.
Um. See that equation at the bottom of your page? Go away and solve it for critical damping. See how your required damping coefficient is dependent on spring rate?Off the lip of a jump the force of your body weight + gravity are acting against the spring. Once you're in the air it doesn't matter because the ground isn't there to act against the wheel which acts against the spring.
Unless you can instantly have zero force acting against the spring before the spring has a chance to react to the nonexistent weight.
the fact that you called it dampening, makes your argument invalid
That is wrong. Those values (at the very least rebound) should vary for different spring rates.How do you explain this then? If each spring rate required a different rebound setting then these "starting points" would all differ on each spring rate.
Depends who's shock he uses. If it's one with a penchant for blowing up, he will certainly be dampened with suspension fluid.the fact that you called it dampening, makes your argument invalid
I didn't even bother to read it when i spotted that.the fact that you called it dampening, makes your argument invalid
Um. See that equation at the bottom of your page? Go away and solve it for critical damping. See how your required damping coefficient is dependent on spring rate?
I stand corrected. Thanks for useful input Udi and big ted.That is wrong. Those values (at the very least rebound) should vary for different spring rates.
See here for an example:
http://www.turnerbikes.com/011/tech/2011Turner_OwnersManual.pdf
SPRING RATES:
~170lb rider: 350 spring REB: -7 clicks out
~200lb rider: 400 spring REB: -5 clicks out
What stem are you using?I am 6 ft and ride a xl frame with a 30mm stem and it feels spot on for me.
Hmm, I'm 6'8" / 38.5" inseam and have to disagree that any L anywhere, or even most XL's are near the size of a V10c. Ive tried just about every XL except an FTW (which Gemeni2k claims is the largest of the large), and plenty of L this n thats.Hey, I have an XL Im 6'5 - 6'6. I find it a bit small, Id like another little bit on the TT. Im long legged .
Its not a huge bike by anymeans. Its actually comparable to some other bike manufacturers large, for example the L spec demo is prob a little longer on the TT.
(the demo has very short chain stays so wouldnt feel as long)
What stem are you using?
Hi Banzai,Numbers shmumbers, nothing close. Demo is nowhere near the size. Some of SC's XL's have been short/small - not this one. (I have 4 others)
yeah. their XL's are like other mfg's large frames. my XL Butcher feels great for me at 6'2"I think he meant other SC models not the v10c specifically.
Hmm, I'm 6'8" / 38.5" inseam and have to disagree that any L anywhere, or even most XL's are near the size of a V10c. Ive tried just about every XL except an FTW (which Gemeni2k claims is the largest of the large), and plenty of L this n thats.
Numbers shmumbers, nothing close. Demo is nowhere near the size. Some of SC's XL's have been short/small - not this one. (I have 4 others)
I wouldnt recommend an XL V10c to anyone under 6'3" -- this fella is definitely on the border.
I dont fit on a Large demo, I do comfortably on XL V10c, no math required. Someone is measuring wrong somewhere along the line.Interesting because in 8.5" mode the V10c has a shorter front center and reach. I used the 8.5" to compare because the static head angle matches that of the Demo.
Exactly, I have a variety of XL SC's, VPFree and Chameleon are Pretty Large, I wouldnt call em XL tho, the LT2 is definitely pretty much anyone elses Large, but the V10 is a limo.yeah. their XL's are like other mfg's large frames. my XL Butcher feels great for me at 6'2"
That's probably the best idea. I'll ask some locals and try and at least ride a large. Currently I'm on a medium Sunday, which feels wayyy too small.Hope that helps, but maybe ride the Large v10 and have a think about it.. what did you ride before this?
I am 5'10", and ride a medium v10. Had an intense m9 in medium before, but the v10, although shorter in reach rides really welll for meIve been following this thread for a bit now and am just curious again; with sizing. I know it can be personal pref. but I just want your thoughts on it. Im 5'10, 30" inseam and ride a med. '10 SX Trail. Looking at the nos., the sxt has a 430mm reach, almost identical number to the reach of a M '11 Demo. Imo the feeling I get riding both bikes is quite close, but the Demo feels lower and longer.
Now for the V10c, which honestly is on top of my list for a first full DH build. the med. V10c has a 400mm reach iirc, a lil over an inch shorter than my sxt. Any 5'9-11" guys here riding a M and your thoughts on the size?
I'm 6'1" with relatively long arms and I love my large v10c. For me, the medium feels a little cramped but the large is perfect. From what I've seen, most people your size prefer the medium.Any 5'9-11" guys here riding a M and your thoughts on the size?