I'm a champion bike mechanic...

Workshop tales, trials and disasters.
Maintenance tips, techniques and myths.
Technical discussion, description and outright lies

I'm a champion bike mechanic...

Postby Xplora » Wed Feb 22, 2012 8:32 am

I adjusted my shimano cable disc brakes (so miserably easy it is embarrassing, check Youtube :oops: )
I put a new bolt into my Topeak rack (I have GOT to tighten those more regularly)
I moved my seat post and tightened it (ped tried hard to get mowed down, I missed them but shanked the post :shock: )
I put some oil on the chain with my toddler's help

All in one night!

What are your lameduck mechanic moments?
Xplora
 
Posts: 6455
Joined: Fri Dec 10, 2010 11:33 pm
Location: TL;DR

by BNA » Wed Feb 22, 2012 9:37 am

BNA
 

Re: I'm a champion bike mechanic...

Postby HappyHumber » Wed Feb 22, 2012 9:37 am

Xplora wrote:I put a new bolt into my Topeak rack (I have GOT to tighten those more regularly)


Discovering loctite ;)
- Kym
Please don't assume I'm on Facebook.
User avatar
HappyHumber
 
Posts: 4201
Joined: Wed Nov 14, 2007 10:48 pm
Location: Perth, (S.o.R.) W.A.

Re: I'm a champion bike mechanic...

Postby PawPaw » Wed Feb 22, 2012 10:32 am

release the tension from my torque wrench springs when not using.
store bikes with the derailleur springs unloaded.
replace cables and housings at the same time, no matter how pretty housings look on the outside.
use sram aluminium cable housing caps, rather than plastic which the cable bites into.
apply electrical tape to the rim valve holes to protect the valve from shear stress.
coat my tubes and tire inner surface with johnsons baby powder to reduce friction
give my sti mechs a monthly shot of wd-40
re-seat my head set bearings every 5000k to prevent divots developing in one spot.
occasionally swap front and rear brake pads, and left and right cleats to share the wear.
use loctite on bidon cage bolts - never had one shake loose since doing it
User avatar
PawPaw
 
Posts: 1244
Joined: Sat Dec 10, 2011 6:53 am
Location: Brisbane

Re: I'm a champion bike mechanic...

Postby rkelsen » Wed Feb 22, 2012 10:36 am

HappyHumber wrote:
Xplora wrote:I put a new bolt into my Topeak rack (I have GOT to tighten those more regularly)

Discovering loctite ;)

Or Nyloc nuts.
User avatar
rkelsen
 
Posts: 4362
Joined: Mon Apr 20, 2009 10:41 pm

Re: I'm a champion bike mechanic...

Postby munga » Wed Feb 22, 2012 12:16 pm

divots = brinelling.
pitty43 wrote:Thanks all for your help. Better change my Gumtree add now.

https://www.facebook.com/groups/retroclassiccycling/
User avatar
munga
 
Posts: 6743
Joined: Mon Jan 28, 2008 2:17 pm
Location: wowe

Re: I'm a champion bike mechanic...

Postby simonn » Wed Feb 22, 2012 12:38 pm

rkelsen wrote:
HappyHumber wrote:
Xplora wrote:I put a new bolt into my Topeak rack (I have GOT to tighten those more regularly)

Discovering loctite ;)

Or Nyloc nuts.

Or grease.
Image
User avatar
simonn
 
Posts: 3648
Joined: Thu Jan 31, 2008 10:46 am
Location: Sydney

Re: I'm a champion bike mechanic...

Postby drubie » Wed Feb 22, 2012 9:40 pm

My "I'm a champion bike mechanic" moment: discovering cable cutters. Only now I've worn mine out and have no idea how to sharpen them :cry:
So we get the leaders we deserve and we elect, we get the companies and the products that we ask for, right? And we have to ask for different things. – Paul Gilding
but really, that's rubbish. We get none of it because the choices are illusory.
User avatar
drubie
 
Posts: 4617
Joined: Wed Oct 22, 2008 10:12 am
Location: New England

Re: I'm a champion bike mechanic...

Postby trailgumby » Wed Feb 22, 2012 9:58 pm

Finally buying a torque wrench... after nearly stripping the thread on the axle retaining bolt on my original 2004 vintage Lefty :oops:

"I will not tighten past 15Nm"
"I will not tighten past 15Nm"
"I will not tighten past 15Nm"
"I will not tighten past 15Nm"
"I will not tighten past 15Nm"
...
User avatar
trailgumby
 
Posts: 10365
Joined: Sat Jan 03, 2009 4:30 pm
Location: Northern Beaches, Sydney

Re: I'm a champion bike mechanic...

Postby HappyHumber » Wed Feb 22, 2012 10:48 pm

Mount your tyres with the most obvious branding centered above the valve hole. It helps you visually locate the valve a smidgeenth quicker (depending on what visual noise is behind the wheel) and also when you're changing a flat it also gives you a loose guide where in relation to the branding the cause of the puncture is in the tyre - eg. assuming you've pulled the tube and it's quite obviously got a hole at 4 o'clock (the valve at midnight) you know to look there first for anything obvious in the tyre.

If not at 4 o'lock try 8 in case you've unwittingly flipped the tube over in pulling it out. If it's not obvious by this method - then back to a more closer & all round inspection.


Whilst this idea it won't feed the starving; it makes things a tad easier and a habit I got into.
- Kym
Please don't assume I'm on Facebook.
User avatar
HappyHumber
 
Posts: 4201
Joined: Wed Nov 14, 2007 10:48 pm
Location: Perth, (S.o.R.) W.A.

Re: I'm a champion bike mechanic...

Postby silentbutdeadly » Thu Feb 23, 2012 9:35 am

My lameduck mechanic moments typically happen every Friday after lunch when I finally get the chance to fix something on one or more bikes from the previous week...not sure what's on this weeks list but there's still a day to go...although there's some spoke tensions to check and a thorn resistant tube to get rid of.....but a tip? Yes a tip....

Before installation fill a new MTB tube with 50mL of Stans Sealant and 20mL of Slime Tyre (not Tube) Sealant. The Stan's goes off fast and the rubber particles in the Slime Tyre sealant helps clog up the hole. Tiny weight penalty for a big win. Cheaper and more effective than a Slime tube - even seems to work on high pressure roadie tubes (just use half the amount suggested above).
Ours is not to reason why...merely to point and giggle
User avatar
silentbutdeadly
 
Posts: 1565
Joined: Fri Apr 09, 2010 9:52 am
Location: Somewhere flat...

Re: I'm a champion bike mechanic...

Postby Xplora » Thu Mar 15, 2012 11:28 am

Another brilliant moment last night! Woot!

I've bought a bracket from Bunnings to mount my magicshine front light, and got my SKS P35 all sorted out on the front. Looks the business! :mrgreen:
Xplora
 
Posts: 6455
Joined: Fri Dec 10, 2010 11:33 pm
Location: TL;DR

Re: I'm a champion bike mechanic...

Postby notwal » Thu Mar 15, 2012 6:56 pm

Check that your new shifter cable is actually shifting gears before you cut it. :oops:

For those stubborn hard to fit tyres try a bit of soapy water on the rim.
judged, insulted, gone
User avatar
notwal
 
Posts: 1097
Joined: Fri Nov 20, 2009 9:57 pm

Re: I'm a champion bike mechanic...

Postby notwal » Thu Mar 15, 2012 7:01 pm

drubie wrote:My "I'm a champion bike mechanic" moment: discovering cable cutters. Only now I've worn mine out and have no idea how to sharpen them :cry:


Time you got a Dremel drubie.
judged, insulted, gone
User avatar
notwal
 
Posts: 1097
Joined: Fri Nov 20, 2009 9:57 pm

Re: I'm a champion bike mechanic...

Postby gururug » Thu Mar 15, 2012 9:12 pm

Converted multispeed to singlespeed ( shortened chain ) to get me home when i mangled a rear derailer riding over a plastic bag. Thank god I had a quicklink.
User avatar
gururug
 
Posts: 1504
Joined: Thu Jan 25, 2007 11:05 pm

Re: I'm a champion bike mechanic...

Postby moreegolfer » Thu Mar 15, 2012 9:18 pm

Xplora wrote:Another brilliant moment last night! Woot!

I've bought a bracket from Bunnings to mount my magicshine front light, and got my SKS P35 all sorted out on the front. Looks the business! :mrgreen:

Have you got a pic Xplora?
Image
moreegolfer
 
Posts: 422
Joined: Thu Jun 17, 2010 3:39 pm
Location: Toowoomba QLD

Re: I'm a champion bike mechanic...

Postby nayfen » Thu Mar 15, 2012 9:23 pm

the most useful tool in my champion workshop is;
www.youtube.com
User avatar
nayfen
 
Posts: 482
Joined: Fri Mar 26, 2010 7:02 pm

Re: I'm a champion bike mechanic...

Postby philip » Fri Mar 16, 2012 7:19 am

Got an extremely stuck carbon seat post out of an aluminium frame. LBS wasn't able to get it out (I'm not sure they tried all that hard though). Seat post was already busted so I ended up drilling a hole through it, sticking a rod through to use as leverage to twist. Got it to twist a tiny bit then putting WD40 in and twisting got it out without too much trouble.
User avatar
philip
 
Posts: 1609
Joined: Wed Sep 17, 2008 1:57 pm
Location: Lane Cove, Sydney

Re: I'm a champion bike mechanic...

Postby WyvernRH » Fri Mar 16, 2012 7:55 pm

[quote="HappyHumber" Discovering loctite ;)[/quote]

Finding out there are lots of different grades/types of Loctite... :P

Cheers
Richard
WyvernRH
 
Posts: 1755
Joined: Tue Nov 06, 2007 5:41 pm
Location: Newcastle NSW

Re: I'm a champion bike mechanic...

Postby toolonglegs » Fri Mar 16, 2012 8:06 pm

Yeah use stud lock instead of blue :P .
Philip... get a spoke....tape a long strip of wet and dry to the spoke and wrap it around the spoke a few times. Put it in a drill and run it up and down the seat tube and it will remove any corrosion but won't take any metal off. Steel wool is better on a long shaft with a slot in it...but it can be a bit hard to get out if it falls off.
User avatar
toolonglegs
 
Posts: 14584
Joined: Fri Jun 29, 2007 7:49 pm
Location: Somewhere with padded walls and really big hills!

Re: I'm a champion bike mechanic...

Postby Big_Red » Thu Mar 22, 2012 11:31 am

My "I'm a champion bike mechanic moment" was replacing the brake & rear derailleur cables last night as i'd noticed them starting to fray/rust. Brakes were still hopeless & noisy, just as they were before i changed the cable. So i whipped out the front & rear disc pads and rubbed them across a light file to remove the glazing. Popped them back in the brake assembly, giving myself a nice blood blister when the pliers slipped while resetting the split pin retainer and reset the pads to just off the disc. Tested the bike out and promply endo'd the bike in testing the front brakes. At least now they lock up each wheel very easily and are nearly silent. Quite chuffed!
Last edited by Big_Red on Fri Mar 23, 2012 9:48 am, edited 1 time in total.
Image
User avatar
Big_Red
 
Posts: 368
Joined: Thu Jan 14, 2010 10:00 pm
Location: Brisbane East

Re: I'm a champion bike mechanic...

Postby teak81 » Thu Mar 22, 2012 5:12 pm

That made me laugh mate. "promptly endod the bike" good job on the brakes. :lol:
2011 Malvernstar xcs 1.0
2012 Oppy a5
2011 fm 015
teak81
 
Posts: 95
Joined: Sat Oct 08, 2011 8:34 pm

Re: I'm a champion bike mechanic...

Postby find_bruce » Sun Sep 02, 2012 9:42 am

Quite chuffed with myself yesterday, managed to repair my brother's brake lever that I stuffed when I borrowed it.

The olive nut had seized & the hex broke off while trying to undo it, but I was able to drill the end of the hose out & remove the nut with an ezy out. Installed new olive & nut.

The tricky part was installing the circlip- I have circlip pliers but the points were too big. Fortunately I am am experienced bodger & used a pair of fine screwdrivers.

edit: should have added that the only thing that needed doing originally was replacing the circlip :)
Image
User avatar
find_bruce
 
Posts: 4020
Joined: Mon May 09, 2011 8:42 pm
Location: Sydney

Re: I'm a champion bike mechanic...

Postby jaseyjase » Mon Sep 03, 2012 2:59 pm

Use pliers to pull gear cables before you pinch bolt them, the extra few mm you get instead of using your fingers helps with cable tension.

Now i can shift into my big rings properly :oops:
User avatar
jaseyjase
 
Posts: 2104
Joined: Tue Apr 21, 2009 2:00 pm
Location: Perth

Re: I'm a champion bike mechanic...

Postby bigfriendlyvegan » Mon Sep 03, 2012 4:39 pm

jaseyjase wrote:Use pliers to pull gear cables before you pinch bolt them, the extra few mm you get instead of using your fingers helps with cable tension.

Now i can shift into my big rings properly :oops:


Use a third hand tool. Much better than pliers for this sort of job - in fact, it's the right tool for this sort of job, pliers aren't.
User avatar
bigfriendlyvegan
 
Posts: 3242
Joined: Tue Apr 01, 2008 1:18 pm
Location: Denistone, NSW

Re: I'm a champion bike mechanic...

Postby jaseyjase » Mon Sep 03, 2012 6:41 pm

yep, in my next order basket.

**edit**

i should add though, while i was you tubing installation, i came across what looked like a promo vid from SRAM about installing FORCE and they just used pliers to pull the cable, no third hand tool.
Last edited by jaseyjase on Tue Sep 04, 2012 12:56 pm, edited 1 time in total.
User avatar
jaseyjase
 
Posts: 2104
Joined: Tue Apr 21, 2009 2:00 pm
Location: Perth

Next

Return to The Shed

Who is online

Users browsing this forum: No registered users



Popular Bike Shops
Wiggle Wiggle UK
Ground Effect Ground Effect NZ
Ebay Ebay AU
Chain Reaction Cycles CRC UK

“Bicycles BNA Twitter
“Bicycles BNA Facebook
“Google+ BNA Google+
“Bicycles BNA Newsletter

> FREE BNA Stickers
> BNA Cycling Kit