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The Chumba thread!

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The Chumba thread!
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flag mrpercussive
Posted: Jun 24, 2009 at 19:45 Quote
Just realised i havent posted this here yet...

Frame : Chumba F5 with Floater
Shock : Manitou ISX6
Fork : 08 Rock Shox Boxxer Race
Rr Derailer : SRAM XO
Shifter : SRAM XO
Chainguide : MRP G2
Brakes : Hayes Stroker Trail with SemiOrganics
Tyres : 2.5 Intense 909 EXDC/ 2.35 Intense 909 EXDC
Tubes : Ghetto Tubeless
Cranks : Truvativ Holzefeller w/ Howitzer BB 40T
Wheels : Sun Ringle ADD Lite
Stem : Twenty6 Boxxer Stem
Bars : Deity Dirty30
Seatpost : Cannondale Fire Carbon
Saddle : Custom SDG RideSFO TiFly
Cassette : SRAM PG970 11-23
Pedals : Shimano M737

38.51lbs on Ultimate scale

photo
https://ep1.pinkbike.org/photo/3596/pbpic3596459.jpg

photo
https://ep1.pinkbike.org/photo/3596/pbpic3596461.jpg

photo
https://ep1.pinkbike.org/photo/3596/pbpic3596460.jpg
flag me2menow
Posted: Jun 24, 2009 at 21:17 Quote
mrpercussive wrote:
me2menow wrote:
mrpercussive wrote:


66 on the XCL??? That would be way overkill... lols. Might as well get an Evo...

Whats going on the F5? XD
i wanna use what i got, but it wont be at 180mm
the f5 is goin coil cuz i dont feel as if air is really working for me

aaaahhhh... boxxer? XD
clooose but im sticking to single crown Smile
flag mrpercussive
Posted: Jun 24, 2009 at 22:39 Quote
me2menow wrote:
mrpercussive wrote:
me2menow wrote:

i wanna use what i got, but it wont be at 180mm
the f5 is goin coil cuz i dont feel as if air is really working for me

aaaahhhh... boxxer? XD
clooose but im sticking to single crown Smile

Totem... XD
flag ns4lyfe
Posted: Aug 9, 2009 at 15:34 Quote
I just noticed the site I buy all my NS stuff just added the Chumba product line you can check them out here. Wish I had the coin to get one!
flag mightylizardmatt
Posted: Aug 21, 2009 at 9:34 Quote
i imported a chumba to the uk as they stopped importing them hear for some reason i built it and ride in scotland in glentress and i got so meany odd looks it seams no one knows how good a chumba is my evo has boosted my confidance so much

how can such a odd bike rides like a dream more people need to try them as i have never seen another i bult it from spare part a had about they need up grading at some points any recomendations? let me know what you think
flag drflatty
Posted: Dec 28, 2009 at 18:45 Quote
keen to get a chumba F4??? anygood ??what do you guys think??? also any idea on the weight of the frames?? thanks
flag mightylizardmatt
Posted: Jan 27, 2010 at 11:50 Quote
just got a chumba zulu i know its old any reccomendations for mods ? or parts that are suited to the frame? any owners of chumba f4 ride zulu how much better is the f4 to the zulu?
flag D-ponko
Posted: Feb 5, 2010 at 12:42 Quote
im thinking for sure that the F5 is my next DH rig. I got some questions though.

The aluminum bracing, connecting the bottom and top tubes and running up to the head tube...is there a weld in there? i can't see it so it isn't just two tubes (bottom and top) connected to the top tube with bracing, is there actually welding connecting them before they reach the top tube? can someone take a picuture of what is in the aluminum bracing that i can't see?

photo
the thing on the far left. covering the top and bottom tubes. is there welding in it before it hits the top tube?
it just kind of looks weak.


And how strong are these puppies? any cracks with anyone?
flag MajesticMOOSE
Posted: Feb 5, 2010 at 12:59 Quote
I don't even need to check my bike to tell you that the top, down and headtube are welded together. No bike company would let something like that slide
flag me2menow
Posted: Feb 5, 2010 at 14:41 Quote
D-ponko wrote:
im thinking for sure that the F5 is my next DH rig. I got some questions though.

The aluminum bracing, connecting the bottom and top tubes and running up to the head tube...is there a weld in there? i can't see it so it isn't just two tubes (bottom and top) connected to the top tube with bracing, is there actually welding connecting them before they reach the top tube? can someone take a picuture of what is in the aluminum bracing that i can't see?

photo
the thing on the far left. covering the top and bottom tubes. is there welding in it before it hits the top tube?
it just kind of looks weak.


And how strong are these puppies? any cracks with anyone?
OMGGGGGGGGG lol
flag D-ponko
Posted: Feb 5, 2010 at 17:38 Quote
MajesticMOOSE wrote:
I don't even need to check my bike to tell you that the top, down and headtube are welded together. No bike company would let something like that slide
tell it to norco. the 2008 ones i mean...
flag ajax-ripper
Posted: Feb 5, 2010 at 18:02 Quote
D-ponko wrote:
MajesticMOOSE wrote:
I don't even need to check my bike to tell you that the top, down and headtube are welded together. No bike company would let something like that slide
tell it to norco. the 2008 ones i mean...
they had welds to a hollow triangular brace. the brace was no good so they added gussets.
before
Unsecure image, only https images allowed: http://photos.nsmb.com/files/2/7/2/8/1/shore_260160.jpgafter
photo
flag D-ponko
Posted: Feb 5, 2010 at 20:51 Quote
ajax-ripper wrote:
D-ponko wrote:
MajesticMOOSE wrote:
I don't even need to check my bike to tell you that the top, down and headtube are welded together. No bike company would let something like that slide
tell it to norco. the 2008 ones i mean...
they had welds to a hollow triangular brace. the brace was no good so they added gussets.
before
Unsecure image, only https images allowed: http://photos.nsmb.com/files/2/7/2/8/1/shore_260160.jpgafter
photo

in other words, they didn't just add gussets to a triangle like gap in the tubing like norco did? its fully welded? no space?
flag ajax-ripper
Posted: Feb 5, 2010 at 21:37 Quote
D-ponko wrote:
ajax-ripper wrote:
D-ponko wrote:
tell it to norco. the 2008 ones i mean...
they had welds to a hollow triangular brace. the brace was no good so they added gussets.
before
Unsecure image, only https images allowed: http://photos.nsmb.com/files/2/7/2/8/1/shore_260160.jpgafter
photo

in other words, they didn't just add gussets to a triangle like gap in the tubing like norco did? its fully welded? no space?
no space.
flag MooMoo2323
O+
Posted: Feb 6, 2010 at 12:27 Quote
D-ponko wrote:
im thinking for sure that the F5 is my next DH rig. I got some questions though.

The aluminum bracing, connecting the bottom and top tubes and running up to the head tube...is there a weld in there? i can't see it so it isn't just two tubes (bottom and top) connected to the top tube with bracing, is there actually welding connecting them before they reach the top tube? can someone take a picuture of what is in the aluminum bracing that i can't see?

photo
the thing on the far left. covering the top and bottom tubes. is there welding in it before it hits the top tube?
it just kind of looks weak.


And how strong are these puppies? any cracks with anyone?


My chumba was really strong. I went big on mine and never a problem, though the rear end is some what flexy; nothing like intense bikes! rear spacing is off when you run the floating brake and 8" avid codes (couldnt space it out enough to not rub the rotor a tad). you'd think for the price, they'd have machined it right to make it compatible; could have just been my frame though--dont know if others had that problem. BUT the drive side chain stay has a serious flaw, which affects all the frames, that kicks the chain into the wheel! This results in a gnarly chain stuck and your wheel will not turn. To remedy, you need to make a little gadget w/ bending spokes or use PVC piping to ensure the chain does not drop into the wheel. even still, i almost died a few times when my gadget would break off and suddenly my chain is stuck and my rear wheel stops moving while pinning it down a trail. Chumba is aware of this problem, but will try and sell you a different chain guide first to solve the problem, even though the problem has nothing to do w/ the chain guide; they're just that skeezy. lastly, the head angle is a little steep, the BB is a little high, and the wheelbase is a little short, so the thing is a bucken' betty through rough stuff at high speed. they have an adapter that is supposed to lower, lengthen and slacken, but they never had any in stock for me to try. now i ride and race a Demo and i'm much happier.

 


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