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Ask Fatdoc - the MTB technical thread (Read 81203 times)

Joepicalli

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#250 Re: Ask Fatdoc - the MTB technical thread
September 02, 2009, 01:44:01 pm
FD, you need to go and break his windows.  I heard that he went into the shop that shouldn't be named at least 5 times yesterday and reported that they were helpful!  :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol:
You are such a dirty snitch, I cannot believe you told him that :-[

fatdoc

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#251 Re: Ask Fatdoc - the MTB technical thread
September 02, 2009, 02:54:48 pm
you dirty dirty b#stard.

 :spank:


unless it was for  150mm AM / FR rig in a sale :)

they would never be helpful mind....



never. you have been mistaken


*click*


....and you're back in the room

Joepicalli

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#252 Re: Ask Fatdoc - the MTB technical thread
September 02, 2009, 03:09:50 pm
While your on jon I'm needing to get my chainline right (its meant to be 50mm do you have any calipers as I'm not talking to Norton now he's busted me.

fatdoc

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#253 Re: Ask Fatdoc - the MTB technical thread
September 02, 2009, 03:59:16 pm
how did it *go off* in the first place?

I've never used calipers..

- insert injury joke here -

IIRC you have a ISIS BB so changing that is unlikely to alter anything.. more likely you have a dodgy / not set up right front mech.

search bikemagic.com site for mechanical knowledge on mech setup, far easier to sort that way than explain over a forum.

sounds like Norton has really screwed yr bike up...

or did you take advice from *that* shop...


i did warn you :wall:

Joepicalli

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#254 Re: Ask Fatdoc - the MTB technical thread
September 02, 2009, 04:13:23 pm
how did it *go off* in the first place?

I've never used calipers..

- insert injury joke here -

IIRC you have a ISIS BB so changing that is unlikely to alter anything.. more likely you have a dodgy / not set up right front mech.

search bikemagic.com site for mechanical knowledge on mech setup, far easier to sort that way than explain over a forum.

sounds like Norton has really screwed yr bike up...

or did you take advice from *that* shop...


i did warn you :wall:
No, its not gone off, what it is is that the new hollow tech bb I fitted with the crank is suitable for both 68 and 73mm casings. Mine is 68 so I need to use all the spacers that come with the bb the standard I believe is to use two on the drive side and one on the off I just wanted to check that this combo does indeed give me a chainline of 50mm.
As far as I can tell everything's fine so far

fatdoc

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#255 Re: Ask Fatdoc - the MTB technical thread
September 02, 2009, 05:23:37 pm
I'm presuming you have 3 rings on the front as per the norm for that bike.

You will indeed need to space out that BB.
I hope its a big S one, coz the raceface X type ones are a 'mare to get a correct chain line on.. and you have to wind the cracks off every time you change a spacer.. took me 3 hrs to sort out my Demo, I cried.

You describe a reasonable spacer combo...

if the mech is working fine... leave it alone!!

I have the pleasure of trying to fit an e- 13 srs to a frame this eve, now that is hell on earth.. good job it's onto a 83 mm shell with a real tight fit before a pivot with a 150mm rear hub... with an x type bb.
arse.

fatdoc

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#256 Re: Ask Fatdoc - the MTB technical thread
September 02, 2009, 10:20:55 pm
I av never fitted achain device withou incident...

Tonight no exception. To be fair I damn near got it in a oner.


But, the spider off my dual ring don't fit the e-13.

Nu cranks are called for..

Omfg, they've gone up a bit!!!

Cheapo raceface ride dh it is then!

I've got a few spare rings and a drs with saint bottom pull front meach with SRAM shifter goin cheap if anyone wants a dual ring setup up front going for a song if you interested..

Joepicalli

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#257 Re: Ask Fatdoc - the MTB technical thread
September 04, 2009, 03:58:52 pm
New hope rear with cassette on new drive chain on, just the chain to fit and a bit (hope) of indexing and the bike is go. Not as bad as I thought it was going to be.
Thanks for all the help. Fat and Norton.

Joepicalli

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#258 Re: Ask Fatdoc - the MTB technical thread
September 06, 2009, 05:36:49 pm
Took the bike out today for the first time, it stayed in one piece and worked really well. I'm begining to get the hang of this bike mechanicing.

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#259 Re: Ask Fatdoc - the MTB technical thread
September 09, 2009, 10:33:19 pm

The drop in Graves will be finished tomorrow night, 6ft face to a very well constructed(moved 1 ft forward, widened and the angle slackened for your info bubbs) should be well fun
[/quote]
Finally got to the park tonight with the bike and did this. Good effort on the landing, it rides well.
Have you been building the little kickers too? The one after the drop's good fun.

fatdoc

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#260 Re: Ask Fatdoc - the MTB technical thread
September 10, 2009, 01:05:57 am
 :-[

all part of the service.

more no doubt on the way.

slackline

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#261 Re: Ask Fatdoc - the MTB technical thread
September 10, 2009, 12:27:08 pm
Any idea how to fix this or will I need a whole new wheel  :P


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#262 Re: Ask Fatdoc - the MTB technical thread
September 10, 2009, 10:38:30 pm
go on...

give us the details...!

slackline

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#263 Re: Ask Fatdoc - the MTB technical thread
September 11, 2009, 05:25:36 am
go on...

give us the details...!

See here for info  :thumbsdown:

Ache a bit this morning  >:(

Norton Sharley

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#264 Re: Ask Fatdoc - the MTB technical thread
September 11, 2009, 12:50:27 pm
Any idea how to fix this or will I need a whole new wheel  :P



Taking the reflector off would be a good start.

The technical way is to hold the wheel on the opposite side to the dent and then twat the dent on the floor as hard as you can.  No really.  Its called stress relieving.  If that fails buy a new rim

slackline

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#265 Re: Ask Fatdoc - the MTB technical thread
September 11, 2009, 12:58:53 pm
I was thinking of using the head of the twat who knocked me off to bash it against.  Would that be as effective?

chappers

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#266 Re: Ask Fatdoc - the MTB technical thread
September 18, 2009, 12:05:21 pm
right then mtb people. what does dual pull mean in this case:
http://www.chainreactioncycles.com/Models.aspx?ModelID=19204

i want a cheap front gear for deore tripple mtb chain set that the cable pulls from below. will this do both?

do all of mtb ones pull from both directions? (i have one that is rigged with the cable from above, but will it work on my new bike where it must pull from below).

cheers

fatboySlimfast

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#267 Re: Ask Fatdoc - the MTB technical thread
September 18, 2009, 03:18:06 pm
yah,you are correct inthat it can be rigged to be pulled from above or below. No, not all mechs do this but this is usually specified in the blurb.

Slack line, that wheels fucked, i personally wouldnt bother and charge the fecker for a full new wheel build

slackline

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#268 Re: Ask Fatdoc - the MTB technical thread
September 18, 2009, 03:50:02 pm
Slack line, that wheels fucked, i personally wouldnt bother and charge the fecker for a full new wheel build

Yeah, I kind of figured that, got a new one t'other day, just got to work out how to get the disc from the disc brake off and transferred to the new wheel.   :-\ Looks like I need some special tool, but may just be lazy and take it to a shop.

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#269 Re: Ask Fatdoc - the MTB technical thread
September 18, 2009, 06:37:59 pm
Any idea how to fix this or will I need a whole new wheel  :P



18 bikes wheel rebuild IMO

i have wheels from them that have stayed round for nearly a year so far.... minor miracle!

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#270 Re: Ask Fatdoc - the MTB technical thread
September 18, 2009, 07:22:05 pm
Yeah, I kind of figured that, got a new one t'other day, just got to work out how to get the disc from the disc brake off and transferred to the new wheel.   :-\ Looks like I need some special tool, but may just be lazy and take it to a shop.

It'll most likely be a torx head if its not an allen key, kind of like an allen bolt head but pointier. I've got one that should fit - easier and cheaper than a shop. PM me if you want to borrow it.

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#271 Re: Ask Fatdoc - the MTB technical thread
September 26, 2009, 09:19:19 pm

here it is boys! current work in progress, but i have hit a brick wall. i bought one front Derailleur, but like an idiot i got the wrong clampsize.
i wont make that error again!

but...the cage that picks up the chain i think will also cause me some problems (i think). are there two different cage sizes? what i think i now need is this:
http://www.chainreactioncycles.com/Models.aspx?ModelID=40545 but should i go for one if i can find with a more slender cage??? - worried that this one will bang into the BB shell. the clamp is in a different place on the one i just linked to (above rather than parallel to - maybe that is the problem).
arrrrgggghhh help i have no clue with these mtb parts!

cheers, (sorry for all the future whittering posts).

fatdoc

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#272 Re: Ask Fatdoc - the MTB technical thread
September 26, 2009, 09:23:26 pm
you need Norton
 :shrug:

I'm not sure, apart from a shim bodge

BTW, that's not a MTB

you sikko

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#273 Re: Ask Fatdoc - the MTB technical thread
September 26, 2009, 11:21:12 pm
Yeah, I kind of figured that, got a new one t'other day, just got to work out how to get the disc from the disc brake off and transferred to the new wheel.   :-\ Looks like I need some special tool, but may just be lazy and take it to a shop.

It'll most likely be a torx head if its not an allen key, kind of like an allen bolt head but pointier. I've got one that should fit - easier and cheaper than a shop. PM me if you want to borrow it.

Only just clocked this, sorry.  Have some pics, will try and find time to post tomorrow.  Thought my friend had the right size piece and whilst the diameter was good, the size of the notches wasn't (that won't make much sense till I post the pics though).

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#274 Re: Ask Fatdoc - the MTB technical thread
September 27, 2009, 07:47:45 am


BTW, that's not a MTB


but you still want one! (it weighs a fucking ton) going to get some lighter tyers (marathons).

 

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