Author Topic: Post Your MTB Rig  (Read 8626 times)

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Offline Herbie53

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Re: Post Your MTB Rig
« Reply #15 on: November 24, 2011, 04:32:03 PM »
it was free.



Sadly this is bike racing and not everyone gets a pony.

Jeepnut22

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Re: Post Your MTB Rig
« Reply #16 on: January 07, 2012, 03:33:09 PM »
Cleaned up and a few upgrades ready for the new season:



Offline jdon

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Re: Post Your MTB Rig
« Reply #17 on: January 07, 2012, 08:32:40 PM »

RUOkie

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Re: Post Your MTB Rig
« Reply #18 on: January 07, 2012, 09:45:02 PM »
^^
That bike looks hard to ride  :P

Offline jdon

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Re: Post Your MTB Rig
« Reply #19 on: January 07, 2012, 10:41:15 PM »
^^
That bike looks hard to ride  :P

Stored for the winter.  :(

shovelhd

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Re: Post Your MTB Rig
« Reply #20 on: January 08, 2012, 10:28:51 AM »
What is that thing sticking up on the drive side "seat stay"? Some kind of hydraulic fluid reservoir? Pardon my modern MTB noobiness.

Offline jdon

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Re: Post Your MTB Rig
« Reply #21 on: January 08, 2012, 10:43:56 AM »
What is that thing sticking up on the drive side "seat stay"? Some kind of hydraulic fluid reservoir? Pardon my modern MTB noobiness.

The "Brain".  It is a variable shock damper basically.  If you are riding on relatively smooth surfaces it pretty much locks the rear suspension to provide better power transfer.  Over rocky terrain it allows full authority shock dampening.  It actually ties in to the suspension on the non-drive side.  Here is a better pic.

« Last Edit: January 08, 2012, 10:51:16 AM by jdon »

shovelhd

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Re: Post Your MTB Rig
« Reply #22 on: January 08, 2012, 11:39:40 AM »
That's very cool. Thank you for the explanation.

Offline ericm979

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Re: Post Your MTB Rig
« Reply #23 on: January 11, 2012, 09:51:14 AM »
It's a valve that's opened up when a weighted slug slides down in the cylinder.  There's a weak spring that holds the slug up.  In the up position the compression damping is very high so the rear end feels locked.  When it's down the circuits open up and the shock can move.
The valve has a delay, and (at least on mine) you can adjust how easily the valve opens up.  The valve is damped so it takes a bit of time to return and shut off damping again.
 
When you're riding, the first bump will be a little rougher as the shock is just unlocking but the next ones will absorbed.  The way I describe it makes it sound hokey but it works pretty well- locked out on smooth stuff, open on rough stuff.

Intertial damping is used in other applications- Koni FSD car shocks use it, it's been used in some forms of car racing.  There are some Fox MTB forks that use something similar as well.   One of these days I'd like one of those so I don't have to reach down for the lockout all the time, and forget it's on and hit a technical section.

Offline jonesy

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Re: Post Your MTB Rig
« Reply #24 on: December 02, 2012, 10:17:35 AM »
My unexpected project on it's shakedown cruise.
 
Food is an essential part of a balanced diet.

sickmtbnutcase

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Re: Post Your MTB Rig
« Reply #25 on: June 30, 2013, 08:49:22 PM »
Reviving a thread since I have a "new" bike. Had to get something together after I found my X2 broken, but not break the bank. This works.

Frame: '06 Trek Fuel EX 9.5 (carbon)
Fork: Marzocchi Z1 Wedge - 130mm (oink oink oink)
Shock: Rock Shox MC3.R with pop-loc remote
Crank: XT 26/36
FD: XT
RD: Microshift (what's not to love for a RD lighter than an XT and over $70 cheaper?)
Cassette: Shimano HG-70 9sp (oink)
Chain: Sram PC951 (oink)
Shifters: Sram Attack (oink) Shimano-compatible
Wheels: Vuelta XRP Team SL (1600g Bikeisland specials)
TIres: CST Cheyenne 2.1 with tubes (oink). Need a Stan's kit.
Seatpost. BBB ebay cheapy (oink)
Saddle: XLC Ti
Bars: ebay crabon
Stem: Kalloy SL (pretty light and cheap)
Grips: ODI lockers
Headset: Cane Creek S5
Pedals: Eggbeater 1 SE
Brakes: Avid Mechs (they're before BB7s got their name but they're essentially BB7s) oink oink

A portly 28.5lb FS rig, but there's weight to lose. Just need to get some dry trails to get out and ride it. First ride will probably be a race on Wednesday. Yes, I need to remove the stickers off the rims.




Krampus

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Re: Post Your MTB Rig
« Reply #26 on: June 16, 2014, 10:53:01 AM »
New Frankenbike! (first mountain bike, too!).

After spending two years riding singletrack on a CX bike and being a nervous, twitchy wreck, this was amazing. I'm absolutely in love with this monstrosity of a bike.
09 Orbea Scape set up single speed (34x18)
Deda stem
Easton Monkey Lite XC carbon bars
Avid Elixir CR hydraulic brakes
Rock Shox Reba 29er fork (contemplating turning it into a 69er for giggles).
Itís got two different wheels - front is a Mavic and rear is an FSA
Thomson Masterpiece seatpost
Fizik Arione saddle
Truvativ FireX crank
And an old-as-**** DA derailleur as a ghetto chain tensioner.
Maxxis Ignitor up front WTB velociraptor in the back.