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Old 07-03-08, 09:43 AM   #1
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Noob Qs: tires, brakes, forks

Hi all,

I bought a mountain bike in the Spring of '07. I rode it a few times but didn't really give myself a chance to warm up to the sport. Now, after rebuilding my girlfriends Obed, I'd like to give it another shot. I'm hoping you guys can help me with a few Qs.

· I have Pana Fire XCs in 1.8 on both wheels. Besides my complete lack of skill/balls, could these skinny tires be making it harder to climb on loose rocks? I'm slipping all over the place. The trails in my neighborhood (Wissahickon) can be really rocky and steep—a mix of large embedded rocks and loose rocks the size of baseballs. Should I get a wider tire?

· Is it just me or do Juicy 5s have no modulation at all?

· The Fox F100-R hasn't really seen many miles, but it's on a 2006 bike. Should I get it serviced? Does it lose air? Should I get a pump? I pressed the valve and light green oil came out with the air; what's up with that?

· The dirt ring on the gold portion of the fork only goes halfway up. Does that mean I'm not utilizing the entire travel of the fork? Should I be?

Thanks a bunch all.
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Old 07-03-08, 09:59 AM   #2
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· I have Pana Fire XCs in 1.8 on both wheels. Besides my complete lack of skill/balls, could these skinny tires be making it harder to climb on loose rocks? I'm slipping all over the place. The trails in my neighborhood (Wissahickon) can be really rocky and steep—a mix of large embedded rocks and loose rocks the size of baseballs. Should I get a wider tire?
I'd try a 2.1" tubeless conversion of a Kenda Nevegal or Kenda Excavator.



· Is it just me or do Juicy 5s have no modulation at all?
Yes...it's just you. Try some EBC Green pads. Best brakes I've ever had.



· The Fox F100-R hasn't really seen many miles, but it's on a 2006 bike.
Should I get it serviced?
Every 100hrs of riding. (is it sticky?) Change oil.


Does it lose air?
Air suspension in my experience has a tenancy to lose a teeny amt of air over long periods of time. Same with tires though.



Should I get a pump?

Would you own a car without a spare tire or jack?



I pressed the valve and light green oil came out with the air; what's up with that?
Well at least now you know if you need a pump.



· The dirt ring on the gold portion of the fork only goes halfway up. Does that mean I'm not utilizing the entire travel of the fork? Should I be?
Is the ride uncomfortable? If not...why worry if you're using full travel? It's like asking if you should use your next gear lower to clear that steep hill. Did you make it up the hill alright w/o using it? No need to change things then. If it bottoms out harshly on bigger hits...give it a little more air. If it feels harsh and never bottoms out (and you want a smoother ride)...let some air out.



Not being a boobie here...just use some common sense for some of these questions. If you have a tire that takes air...you probably have a tire pump. So yes...buy a fork pump.

Last edited by ed; 07-03-08 at 10:03 AM.
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Old 07-03-08, 10:02 AM   #3
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Do you have CAD?
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Old 07-03-08, 10:19 AM   #4
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· I have Pana Fire XCs in 1.8 on both wheels. Besides my complete lack of skill/balls, could these skinny tires be making it harder to climb on loose rocks? I'm slipping all over the place. The trails in my neighborhood (Wissahickon) can be really rocky and steep—a mix of large embedded rocks and loose rocks the size of baseballs. Should I get a wider tire?
I'd try a 2.1" tubeless conversion of a Kenda Nevegal or Kenda Excavator.
Tubeless works on standard rims?



· Is it just me or do Juicy 5s have no modulation at all?
Yes...it's just you. Try some EBC Green pads. Best brakes I've ever had.
Then perhaps I'm just too used to the amount of modulation available on road bikes.



· The Fox F100-R hasn't really seen many miles, but it's on a 2006 bike.
Should I get it serviced?
Every 100hrs of riding. (is it sticky?) Change oil.


Does it lose air?
Air suspension in my experience has a tenancy to lose a teeny amt of air over long periods of time. Same with tires though.



Should I get a pump?

Would you own a car without a spare tire or jack?



I pressed the valve and light green oil came out with the air; what's up with that?
Well at least now you know if you need a pump.



· The dirt ring on the gold portion of the fork only goes halfway up. Does that mean I'm not utilizing the entire travel of the fork? Should I be?
Is the ride uncomfortable? If not...why worry if you're using full travel? It's like asking if you should use your next gear lower to clear that steep hill. Did you make it up the hill alright w/o using it? No need to change things then. If it bottoms out harshly on bigger hits...give it a little more air. If it feels harsh and never bottoms out (and you want a smoother ride)...let some air out.



Not being a boobie here...just use some common sense for some of these questions. If you have a tire that takes air...you probably have a tire pump. So yes...buy a fork pump.

These last couple of statements assume that I know the slightest bit about suspension forks.

I've ridden them a total of 12 or even less hours. I discovered the valve for the first time today. It's been over two years since this fork came out of the factory, so with the little riding I've done I can't tell if it's functioning properly or not. It seems to be okay but what do I know?

Guess I'll have to purchase a pump just to see what pressure it's at. And to toy with the ride a bit. Really, after finding the valve I thought it would need to be filled once a year at the most; didn't realize it was a tuning thing. And FYI I do pump my road tires every day.

Suggestions for a good pump? The Pricepoint house pump is $20.

And the oil that came out of the pump valve? What it is for eh?
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Old 07-03-08, 10:21 AM   #5
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Do you have CAD?
Nope. Just vector from Illustrator.

Edit: That's my artery. Everyone thinks it's an inner tube, either that or a *whistles*.
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Old 07-03-08, 12:12 PM   #6
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'Guess I WAS a boobie, eh?

I got an el'cheapo "power tools" pump or some crap like that from my LBS. It was like $15 and I think it's made by Trek but I'm not sure. It has a nice "pressure release" button on it though so I can let air out w/o unscrewing it from the fork.

The oil...hmm...I'd say it's prob. just suspension fluid. (lube) If your fork begins to feel sticky at any point, take it to your local bike shop and have them pull it apart and clean the seals, bushings, and change oil.

If you get sucked deep into MTB's like I accidentally did...when it starts to feel sticky, give the guys at PUSH Industries a call and see if you can have them rebuild it to fit you and your riding style. You'll notice immediate performance increase...sorta like Viagra.

Is this a Fox Float? F100? Which model do ya have?




Edit: oops...just re-read your first post again. F-100R...you should have many years of smooth riding ahead of you.

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Old 07-03-08, 12:14 PM   #7
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Quote:
Originally Posted by steaktaco View Post
Nope. Just vector from Illustrator.

Edit: That's my artery. Everyone thinks it's an inner tube, either that or a *whistles*.



Arteries are my first thought...I Echo.



Serious about the tubeless tires though. Get a Stans conversion kit or have your local shop do it for you. Use some Stans sealant and a good set of meats like the 2.1" Nevegal or Excavator.

B2B swears by the tubeless. I'd prob. go 2bless to if it weren't for me wanting to use bigger tires. I like them to be at least 2.35".

Last edited by ed; 07-03-08 at 12:17 PM.
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