Off Topic sorry, Mountain biking question - Defender Source
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  #1  
Old March 22nd, 2010, 01:41 PM
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Cliff Weinstein
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Off Topic sorry, Mountain biking question

I'm sure there are some mountain biking enthusiasts out there, if so just reply. I have a few quick questions.
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  #2  
Old March 22nd, 2010, 02:15 PM
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Are there shocks that I can addjust up and down like my friends LX460? That would be very cool!
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Old March 22nd, 2010, 02:18 PM
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Go ahead...
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  #4  
Old March 22nd, 2010, 02:19 PM
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I'd guess there are a lot of us here...

and that is what the "misc." section is for anyway
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Old March 22nd, 2010, 02:33 PM
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No worries.. I'll move it there
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Old March 22nd, 2010, 03:00 PM
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Cliff Weinstein
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Just got into Mountain Biking. I bought a 2009 Felt Compulsion 3, new. the bike seems overwhemingly slow. I went riding with two of my friends that have much older bikes and i could not keep up, not even close. Either im just too fat and out of shape or my suspension is not tuned correctly. The back shock seems soft, maybe not enough air in it. Would this cause the bike to be that much slower. Even on flat road its sluggish. the link to the bike is below.

http://2009.feltracing.com/09-catalo...pulsion-3.aspx
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Old March 22nd, 2010, 03:45 PM
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Unfortunately most of the sluggishness of a bike has to do with the engine... certainly there's a lot about a bike that will contribute to how efficiently it will transfer energy to the wheels

if you're new to mountain biking part of the issue is likely just being used to how the bike feels and how to get it to go fast... the link on this bike is fairly efficient so you shouldn't be dropping too much efficiency to the rear shock but it might _feel_ like its off and that would psychologically decrease your input... tire pressure could have the same type of effect (as can the type of tires).

It's a pretty good bike so maybe try switching bikes with your friends and see what they think... maybe there's something in particular going on with yours (brake dragging perhaps?) or maybe just the engine needs an overhaul (turn up the pressure on the turbo?)
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Old March 22nd, 2010, 03:46 PM
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Yes it would especially if you are pedaling up hill. Unless you are doing downhills you are going to want your suspension to be fairly stiff. Otherwise its going to be like riding in sand. All of your energy is compressing your suspension rather than moving the bike forward.
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Old March 22nd, 2010, 03:47 PM
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I find every time I am on my bike I am over equipped and under qualified.
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Are there shocks that I can addjust up and down like my friends LX460? That would be very cool!
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Old March 22nd, 2010, 03:49 PM
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Quote:
Originally Posted by bjf View Post
I find every time I am on my bike I am over equipped and under qualified.
Why would a bike be any different than your experience with Defenders?
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Old March 22nd, 2010, 03:51 PM
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Quote:
Originally Posted by merlin8ty View Post
Just got into Mountain Biking. I bought a 2009 Felt Compulsion 3, new. the bike seems overwhemingly slow. I went riding with two of my friends that have much older bikes and i could not keep up, not even close. Either im just too fat and out of shape or my suspension is not tuned correctly. The back shock seems soft, maybe not enough air in it. Would this cause the bike to be that much slower. Even on flat road its sluggish. the link to the bike is below.

http://2009.feltracing.com/09-catalo...pulsion-3.aspx
It is certainly possible you don't have enough pressure. Just buy a cheapo fox pump with gauge. Have you check it yet against the specs? If it is running low, it won't rebound fast enough and you'll feel like you are riding a hardtail.

Also tire pressure is important. Too much and you will get tossed off the bike, not enough and you'll feel like your power is being sapped.

but just like wheeling. It is easy to blame the equipment, hard to blame the driver. If you are feeling winded or not able to put enough power to the pedals, then it is you. You need to train, ride more, etc.
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Old March 22nd, 2010, 03:53 PM
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Quote:
Originally Posted by phoenix37 View Post
Why would a bike be any different than your experience with Defenders?
Douche!!

Speaking of defenders. My 110 is at four oaks having a once over and having the brake job completed.

------ Follow up post added March 22nd, 2010 12:53 PM ------

Might as well go fully off topic.

Brad

You ride?
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Are there shocks that I can addjust up and down like my friends LX460? That would be very cool!
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  #13  
Old March 22nd, 2010, 03:54 PM
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Sorry that was a slow pitch. Couldnt resist.
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  #14  
Old March 22nd, 2010, 04:16 PM
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keep riding and it will get faster. or find a newer rider to go with.
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  #15  
Old March 22nd, 2010, 04:21 PM
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Quote:
Originally Posted by bharris View Post
It's a pretty good bike so maybe try switching bikes with your friends and see what they think
This is the easiest way to tell. If they're still faster when they're on your bike then it's you. Don't feel bad, the guys I ride with have to take turns waiting for me. They think it's funny.
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  #16  
Old March 22nd, 2010, 05:06 PM
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Quote:
Originally Posted by bjf View Post

Brad

You ride?
As much as I can... too many hobbies, not enough time...

I only brought my road bike and the cyclo-cross bike so far as my wife wants me to ride the mountain bike with her when I'm home... (more of a roadie anyway, but I've done a few races and usually place fairly well)
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Old March 22nd, 2010, 06:12 PM
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Cliff ... Do the wheels spin freely? I know it sounds obvious but a friend of mine complained that my Turner ran much faster than a similar spec Specialized ... at least some of the problem was a gently binding brake that got worse with friction as you rode it.

Position on the bike can make big difference to how you feel about things .. have the bike fitted to you properly can make a big difference.

Newer bikes tend to have all mountain geometry which translates into less steep head angles ... that makes the bike stable on the down hill but feel lazy on the up hill.

Defenders and mountain bikes in one thread! perfect!
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Old March 22nd, 2010, 06:14 PM
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Quote:
Originally Posted by phoenix37 View Post
Yes it would especially if you are pedaling up hill. Unless you are doing downhills you are going to want your suspension to be fairly stiff. Otherwise its going to be like riding in sand. All of your energy is compressing your suspension rather than moving the bike forward.
But you get the energy back when the suspension extends.
Soft tyres will rob power.
Slicks have less rolling resistance.
One Human power is a variable amount.
Me, I ride motorcycle trials mostly and not very well, but it's a 3 hour workout on a Sunday, and I can still get the bike places a LR won't go.
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Old March 22nd, 2010, 06:18 PM
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Does the Felt Compulsion 3 have a lock out rear shock? if it does, I would tell you to lock it out on the uphills. you lose a lot of power and put about 1/3 more the effort every stroke of the pedal. If it was locked then all the force going into the pedal is directly transferred to the rear wheel. You may also need to bring your seat up higher. your leg should be slightly bent at full downward motion. about 5-10 degrees bend at the knee. this also will not wear you out as much.

I may not know my Defenders so well, but dammit I know my biking!

I still have my old ass cross county bike and it is a triple-butted aluminum hardtail with the best geometry. it is from 1994, and I still rock it because it is the best set up for me. Geometry is about 75% of how well you ride the bike. if it fits, keep it.

Now lets go to Diablo and downhill!
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  #20  
Old March 22nd, 2010, 06:21 PM
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no you don't ...some of it is converted to heat in the shock ... one of bernoullis laws i think.

------ Follow up post added March 22nd, 2010 06:22 PM ------

I'm think Defenders and MTB day out ....
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