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Ask Fatdoc - the MTB technical thread (Read 80802 times)

SA Chris

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#75 Re: Ask Fatdoc - the MTB technical thread
January 05, 2009, 10:32:04 am
Fatdoc, I seem to recall you recommending a sort of soft protection / body armour type biking top a while back, but can't find it now. Where did you post the recommendation?

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#76 Re: Ask Fatdoc - the MTB technical thread
January 05, 2009, 10:47:19 am
Anyone got any advice for Avid Juicy 3 brake maintenance?

the front brake has gone all "squishy" and the lever needs pulling almost all the way to the bar to engage, whereas the back one is still nice and firm - does this mean the system needs to be bled? If so, do i NEED the Avid syringe kit etc? I used to sort out my old Hope's with just a bit of silicone tube from work, ho hum

happy new year by the way

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#77 Re: Ask Fatdoc - the MTB technical thread
January 05, 2009, 01:23:11 pm
Fatdoc, I seem to recall you recommending a sort of soft protection / body armour type biking top a while back, but can't find it now. Where did you post the recommendation?

reasonably balanced forum discussion, reviews and links to manufactures site here:

/www.ridemonkey.com/forums/archive/index.php/t-192137.html

BTW, it's hot to wear on the ups....

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#78 Re: Ask Fatdoc - the MTB technical thread
January 05, 2009, 01:27:16 pm
Anyone got any advice for Avid Juicy 3 brake maintenance?

the front brake has gone all "squishy" and the lever needs pulling almost all the way to the bar to engage, whereas the back one is still nice and firm - does this mean the system needs to be bled? If so, do i NEED the Avid syringe kit etc? I used to sort out my old Hope's with just a bit of silicone tube from work, ho hum

happy new year by the way

you sound like you do need to bleed the brake mate.

Avids have a reputation to be a mare to bleed... dunno if you NEED the bleed kit.. sound like you have an understanding of the proceedure... I'd ask on bikemagic kit forum..

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#79 Re: Ask Fatdoc - the MTB technical thread
January 05, 2009, 01:30:42 pm
thank you, wise master! :hug:

blimey - just checked on-line and the Juicy bleed kit is £25! According to the destructions, it appears to be necessary to buy the kit to make the whole lot work, not like pouring oil into the master reservoir of a Hope and "pumping" it through to the caliper with the lever!!

I do have some DOT 5,1 fluid i used to bleed my old Hope's, anyone know what Avid use? they say it's "High-Performance DOT fluid" whatever that means!
« Last Edit: January 05, 2009, 01:44:18 pm by Iesu, Reason: found out that Avid want to bleed me dry »

SA Chris

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#80 Re: Ask Fatdoc - the MTB technical thread
January 05, 2009, 01:34:44 pm

BTW, it's hot to wear on the ups....


Cheers. Hot on the ups, sounds ideal for Scotland.

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#81 Re: Ask Fatdoc - the MTB technical thread
January 05, 2009, 03:33:02 pm
I think you can do Avids with a cpl of old syringes
http://www.youtube.com/v/6mg6NbIjmOM&hl=en&fs=1

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#82 Re: Ask Fatdoc - the MTB technical thread
January 05, 2009, 03:43:21 pm
unfortunately i am not an intravenous drug user (recreational or medicinal), so i don't have any cocking syringes lying around.

oh, I know, I'll go up to Harehills tonight and have a rummage about in the bins....  :lol:

p.s. that dude has nice specs. he looks like someone from the remedial class at my old high school

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#83 Re: Ask Fatdoc - the MTB technical thread
January 05, 2009, 06:41:35 pm
Do you get a pair of those shorts with the bleed kit?

I've always bled my brakes using the tried and tested car brake method, which will be what you used to do with your Hopes, which involves pushing fluid through the system from the reservoir to the caliper.  This certainly uses more fluid and is more messy so make sure you take your wheel off and your pads out before bleeding.  And make sure you have enough fluid in the (relatively) tiny reservoir.

DOT4 and 5 are interchangeable but don't mix in the same system.

Check out t'interweb for any number of vids on how to bleed brakes.


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#84 Re: Ask Fatdoc - the MTB technical thread
January 05, 2009, 10:34:09 pm
You'll love this

Bushings seem to be not well!!!


Arse!!

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#85 Re: Ask Fatdoc - the MTB technical thread
January 06, 2009, 10:08:22 am

I've always bled my brakes using the tried and tested car brake method, which will be what you used to do with your Hopes, which involves pushing fluid through the system from the reservoir to the caliper. 


cheers, I am tempted to buy the bleed kit to see if the shorts and specs come with it.

I've only had the damn bike since Sept, and after all the hassle with the Headshock, brake woes is all i need (especially as i nearly experienced an exact replica of the car incident that totalled my last bike in July - damn near bit through my lower lip!).

Avid claim that the tapping of the syringe gets bubbles out of the fluid before injection (it does all seem a bit of a faff, though) just like a smack 'ed - weyhey!

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#86 Re: Ask Fatdoc - the MTB technical thread
January 06, 2009, 01:21:18 pm
You'll love this

Bushings seem to be not well!!!


Arse!!

Course they are not well, they are Fox bushes!  Turn your bike upside down, compress the forks a couple of times and leave for an hour.  Turn right way up, pump up your brakes, and off you go with 'fixed' bushes.  ;)

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#87 Re: Ask Fatdoc - the MTB technical thread
January 06, 2009, 03:20:41 pm
not the forks...

it' the shock

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#88 Re: Ask Fatdoc - the MTB technical thread
January 06, 2009, 03:44:13 pm
the shock of what? your weight?  :shrug:

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#89 Re: Ask Fatdoc - the MTB technical thread
January 06, 2009, 04:20:44 pm
 :spank:

no


loose  /  worn plastic cuff thingies in the eyes... need to search toolbox.. i'm sure i have a drift... but need some more cuffs from BETD  :'(

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#90 Re: Ask Fatdoc - the MTB technical thread
January 06, 2009, 05:32:38 pm
I may have some.  I bought a set of Fox RP/Triad bushes for the Stumpie and there are loads of bushes in it I didn't need.  I'll go and check in the shed later tonight and give you a bell.

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#91 Re: Ask Fatdoc - the MTB technical thread
January 06, 2009, 07:53:05 pm
Cool, just taken dust caps off links and I have to say the lock nut and axle bit have ME a bit wierded out!

I need to speak to lbs / marin uk tomorrow :shrug:

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#92 Re: Ask Fatdoc - the MTB technical thread
January 07, 2009, 11:28:27 am
long chat to Marin mechanic par excellance


bushings most likely OK

probs bearing failure, off to get me a new set sat morn  :'(

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#93 Re: Ask Fatdoc - the MTB technical thread
January 09, 2009, 10:57:27 am
Another product recall - I doubt anyone has these - bit racey for you chaps.

http://www.18bikes.co.uk/news.php?articleshow=263

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#94 Re: Ask Fatdoc - the MTB technical thread
January 09, 2009, 12:57:28 pm
long chat to Marin mechanic par excellance


bushings most likely OK

probs bearing failure, off to get me a new set sat morn  :'(

 :'(

Good news is I just bought some '09 Van32R with 15QR for £280 from world's worst bike shop  8)

Does anyone happen to have a spare 140mm purple Fox Vanilla spring?  Even if I have to pay full wack for a spring from Mojo that's still a bargain since the 32mmVan R with through axle are like rocking horse shit.  In fact Fox claim not even to make them on their website  :shrug:

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#95 Re: Ask Fatdoc - the MTB technical thread
January 09, 2009, 04:24:03 pm
that's one fuck off lush fork for a fuck off price... what depravity did you perfrom to get those :lol:


er... springs.... would a spring from a pike fit  :shrug:


i have an old pike coil fork you see... 8)

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#96 Re: Ask Fatdoc - the MTB technical thread
January 09, 2009, 06:20:05 pm
... well they are a bunch of cocksuckers in there .. 

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#97 Re: Ask Fatdoc - the MTB technical thread
January 12, 2009, 10:51:17 am
it seems the damping cartridge in my headshock has gone again. this is the second time in 3 months of ownership (delivered early september, with a faulty shock valve - which EVANS cocksuckers repaired apparently).

this is getting to be too much, as i rely on this steed for commuting to work. Anyone know the resale value of a C'dale F2 only ever used for road/canal commuting for 3 months (assuming they get the shock working again)?

On another note I have an old Orange C16R frame that unfortunately takes a 1" steerer. I previously had a pace carbon rigid fork (that snapped on impact with a car), anyone know of cheap MTB forks with a 1" steerer so i can get this old hefter back on the road for the commute?

cheers in advance, O wise ones

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#98 Re: Ask Fatdoc - the MTB technical thread
January 12, 2009, 12:35:28 pm
i think you'll only get a rigid fork with 1" steerer these days, sorry

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#99 Re: Ask Fatdoc - the MTB technical thread
January 12, 2009, 12:39:34 pm
aye, that's exactly what i'm after!!

any recommendations? P2 or similar? i don't think DT Swiss even do a 1" steerer for their version of the old Pace RC31. can't seem to find one inchers anywhere on the t'interweb

 

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